2026-07-15

Epoxy resin for jewelry generally refers to highly transparent epoxy resin materials used for decorative purposes.

 

It is widely used in a variety of items, including personal accessories such as earrings, hair clips, necklaces, bracelets, hat badges, brooches, apparel, key rings, buttons, shoe ornaments, belt buckles, and bag charms. It is also applied in daily necessities like door and cabinet handles, hardware fittings, as well as picture frames, signage, and other decorative items.

 

Epoxy resins for jewelry are typically categorized into flexible resin, rigid resin, doming resin, and casting/polishing resin. The main components usually include epoxy resin, amine curing agents, and various additives. These resins are characterized by high transparency, flexibility or high hardness, and excellent yellowing resistance.

 

1,3-BAC (1,3-Cyclohexanedimethanamine) is an aliphatic amine and serves as a key raw material for epoxy curing agents, widely used around the world. When used as a raw material for jewelry epoxy curing agents, 1,3-BAC offers typical advantages such as low viscosity, high hardness, high transparency, yellowing resistance, and fast curing speed. This endows the epoxy jewelry resin with a more ideal appearance and outstanding performance.

 

Typical Physical and Chemical Data of 1,3-BAC:

Product Name: 1,3-Cyclohexanedimethanamine

Appearance: Colorless transparent liquid

Color (APHA): 20 Max

Viscosity (cps/20): 9.1

Density: 0.940 - 0.950

Freezing Point (): < -70

Active Hydrogen Equivalent: 35.6

 

Features:

Fast curing speed at room temperature

Excellent weather resistance

Low viscosity and easy handling

Crystal clear with excellent appearance of cured products

Cured products possess excellent mechanical properties

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2026-07-15

Nonylphenol has long been used in epoxy resin systems as a functional aid to promote dilution. However, in recent years, with increasing health awareness and stricter environmental regulations, the use of nonylphenol has become increasingly restricted.

Nanjing Youlai's Styrenated Phenol MSP-250 serves as an epoxy resin modifier. In addition to its ideal chemical properties, it meets the demands of environmental regulations.

 

Typical Data

  • Product Name: Styrenated Phenol
  • Grade: MSP-250
  • Appearance: Liquid
  • Color (APHA): <200
  • Viscosity (cps/25°C): 300~800
  • Hydroxyl Value (mg KOH/g): 230~260

 

Performance Features

As an epoxy resin modifier, MSP-250 is a clear, low-viscosity liquid. When added to the curing agent component, it accelerates the curing speed and improves the water resistance, anti-whitening properties, scratch resistance, abrasion resistance, hardness, and leveling performance of the cured product.

MSP-250 exhibits color stability under both long-term and high-temperature conditions. Comparison of color performance between MSP-250 and Nonylphenol when mixed with curing agents:

 

Within 1 week at room temperature: No significant difference observed.

Within 3 days at 60°C: MSP-250 demonstrates superior color stability compared to Nonylphenol.

Within 1 week at 60°C: MSP-250 demonstrates superior color stability compared to Nonylphenol.

 

Application Area

  • Epoxy Coatings & Heavy-duty Anti-corrosion Coatings: Acts as a plasticizer, diluent, and accelerator.
  • Craft & Jewelry Adhesives: Offers excellent transparency, abrasion resistance, and adhesion.
  • Electronics & Electrical: Suitable for potting, varnishes, industrial adhesives, and LED encapsulation.
  • Automotive Sealants: Improves bonding for doors and headliners, providing waterproofing and rust prevention for internal and external panels.

Civil Engineering & Construction: Applicable for crack sealing, crack injection, carbon fiber reinforcement, and steel reinforcement.

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2026-07-15

Why is YLSE-721 our star product? What makes it so “hardcore”?

 

YLSE-721 is a high-performance, amino-based tetrafunctional liquid epoxy resin — an “industrial-grade bonding master” designed specifically for high-strength and high heat-resistant applications.

Its name reveals the secret: “tetrafunctional” means each molecule contains four reactive sites, like a “multi-armed warrior” that can form a denser and stronger cross-linked network with curing agents. This is the key reason why its strength far exceeds that of ordinary difunctional epoxy resins. Meanwhile, its liquid form provides excellent flowability, making it ideal for potting, coating, or filling complex structures, ensuring easy and efficient application.

What truly impresses users are its “three highs”: high temperature resistance, fast curing, and superior mechanical strength.

  • Heat resistance: Continuous service temperature up to 150°C, and short-term endurance above 180°C, far outperforming standard epoxies (typically ≤120°C). Perfect for engine surroundings, motor coils, and PCB protection under high-temperature conditions. 🔧

  • Curing speed: Fully cures within 30–60 minutes at 60–80°C, which is 2–3 times faster than conventional epoxy systems — a real time-saver for urgent projects.

  • Mechanical properties: Tensile strength exceeds 50 MPa, flexural strength surpasses 80 MPa, with excellent impact resistance and dimensional stability. It resists cracking even under severe vibration or thermal cycling.

In addition, YLSE-721 offers outstanding electrical insulation, oil resistance, water resistance, and chemical durability — truly earning its reputation as the “Iron Man of the industrial world.”

 

Product Information

Chemical Name: N,N,N',N'-Tetraglycidyl-4,4'-diaminodiphenylmethane

CAS No.: 28768-32-3

Structural Formula

 

 

Main Applications

  • High-temperature resistant composites such as carbon fiber and glass fiber;

  • Potting of electronic components (e.g. power modules, LED drivers);

  • Impregnation and insulation protection for motors and transformer coils;

  • Precision mold manufacturing, including bonding of metals, ceramics, and composites;

  • Bonding and sealing of aerospace structural components;

  • Wear-resistant repair and anti-corrosion coatings for heavy-duty mechanical parts.

 

Usage Instructions

YLSE-721 can be formulated with amine-type, anhydride-type, or imidazole-type curing agents and coupling agents to prepare adhesives, casting compounds, or composite systems for applications requiring excellent heat resistance.
Common curing agents include 4,4'-diaminodiphenyl sulfone (4,4'-DDS), 4,4'-diaminodiphenylmethane (DDM), methyl tetrahydrophthalic anhydride (METHPA), methyl nadic anhydride (MNA), and 2-ethyl-4-methylimidazole (2,4EMI).

If the resin appears too viscous during use, it can be heated to an appropriate temperature to reduce viscosity before mixing.
To improve toughness, additives such as liquid polysulfide rubber or liquid nitrile rubber can be incorporated.

 

Typical Cured Properties

DDS DDM METHPA MNA Test Method
Glass Transition Temperature (°C) 250-260 220-230 200-210 235-240
Tensile Strength (MPa) 75 50 50 45
Tensile Modulus (GPa) 3.5 3.3 3.2 3.6
Flexural Strength (MPa) 130 120 100 97
Flexural Modulus (GPa) 3.3 3.4 4.0 3.8
Elongation at Break (%) 2.8 1.6 1.9 1.1
Impact Strength (kJ/m²) 15 10 9 8
Resin-to-Hardener Ratio (by weight) 100:52 100:42 100:42 100:150
Curing Schedule 100℃*2h+130℃*2h+160℃*2h+180℃*2h+200℃*2h

 

Common Mistakes to Avoid

❌ Incorrect curing agent combination: YLSE-721 must be used with specific anhydride or aromatic amine curing agents. Using general-purpose epoxy hardeners may result in incomplete curing, soft texture, or drastically reduced heat resistance ⚠️.
❌ Neglecting surface preparation: The substrate must be thoroughly cleaned, dried, and sanded; otherwise, adhesion failure or “false bonding” may occur.
❌ Overheating during curing: Although the resin has high thermal resistance, curing should be kept within the recommended temperature range (usually 60–120°C). Excessive temperature may cause bubbling or discoloration.

 

Precautions

Due to its high functionality and epoxy value, YLSE-721 releases a large amount of heat during curing, so precautions should be taken to prevent runaway polymerization.
If the viscosity is too high for convenient use, preheat the resin to 100–120°C for about one hour to lower viscosity.
⚠️ When heating, keep the container lid open to prevent polymerization explosion.
This epoxy resin is alkali-resistant but not resistant to strong acids.

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2026-07-15

Product Description

YLSE-0500 / YLSE-0510 is a high-temperature-resistant trifunctional epoxy resin based on p-aminophenol. The molecular structure contains multiple epoxy groups and aromatic rings, enabling the cured system to form a high crosslink density and aromatic density during curing. As a result, the cured material exhibits excellent heat resistance, high mechanical strength, low curing shrinkage, and good resistance to radiation, water, and chemicals.


In addition, its low viscosity makes it easy to process and suitable for solvent-free operations. It is used in electrical insulation castings requiring high thermal resistance, as well as composite manufacturing processes such as carbon fiber and glass fiber filament winding, pultrusion, lamination, and prepreg production. The glass transition temperature (Tg) can exceed 200 °C.

 

Product Name

4-(2,3-Epoxypropoxy)-N,N-di(2,3-epoxypropyl)aniline

CAS No.: 5026-74-4

 

Structural Formula

 

Technical Specifications

 

YLSE-0500

YLSE-0510

Appearance

Brown liquid

Yellow liquid

EEW, g/eq

100-115

93-106

Viscosity, cps@25°C

1500-6000

500-1000

Volatiles, %

Max. 1.5

Max.1.0

 

Main Applications

  1. High-temperature structural adhesives

  2. Carbon fiber and glass fiber composites for pultrusion and filament winding

  3. Electrical insulation materials

  4. High-temperature epoxy casting systems used in vacuum casting (RTM, VARTM) and Automatic Pressure Gelation (APG)

  5. Potting and sealing of miniature motor components

  6. High-temperature epoxy diluent

 

Properties of Neat Resin Castings

Comparison of Casting Performance between YLSE-0500 and YLSE-0510

Using DDS (4,4'-diaminodiphenyl sulfone) as the curing agent, selected performance properties of castings made from YLSE-0500 and YLSE-0510 epoxy resins were tested.

Casting preparation procedure:
• Heat DDS to 200 °C (melting point 176 °C) until melted.
• Preheat the epoxy resin to 100 °C.
• Slowly add DDS into the epoxy resin while stirring until uniform.
• Defoam under vacuum for 15 minutes.
• Pour into molds and heat-cure.

 

The performance indicators of the resulting castings are shown in the table below:

Brand type

YLSE-0500

YLSE-0510

Curing agent name

DDS

Curing agent addition amount phr

49

Curing condition

0.5h/80°C+1h/100°C+1.5h/120°C+2h/180°C

Tg(DMA method) °C

245-250

260-270

Bending performance at 25°C

Strength Mpa

132

136

Modulus  Gpa

3.5

3.4

Tensile properties at 25°C

Strength Mpa

64

70

Modulus  Gpa

3.8

3.6

Elongation at break  %

2.3

2.8

 

Casting Properties of YLSE-0500 with Methyl Tetrahydrophthalic Anhydride (MTHPA)

YLSE-0500 epoxy resin is commonly used together with aromatic amine curing agents (such as diaminodiphenyl sulfone and diaminodiphenylmethane) and anhydride curing agents (such as methyl nadic anhydride, methyl tetrahydrophthalic anhydride, and methyl hexahydrophthalic anhydride).

 

The casting properties of YLSE-0500 cured with methyl tetrahydrophthalic anhydride (MTHPA) at 25 °C are shown in the table below:

Tensile strength Mpa

Bending strength Mpa

Impact strength Kj/m2

Elongation at break  %

Tg(DSC) 

20-30

90-100

8-10

1.5-2.5

190-200

Mixing ratio(Phr): YLSE-0500/MTHPA=100/150

Curing conditions: 80℃/2h+100℃/2h+130℃/2h+180℃/3h

 

Precautions

Due to its high functionality and high epoxy value, the curing process generates a large amount of heat, so attention must be paid to preventing runaway polymerization. If the viscosity becomes too high and causes difficulty in use, the resin may be heated to 100–120 °C for 1 hour to reduce the viscosity. During heating, please open the container lid to prevent any risk of runaway polymerization.

 

Equivalent Grades

Similar domestic and international product grades include MY-0500, MY-0510, AFG-90, AFG-90H, etc.

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2026-07-15

 

Today, we are excited to introduce a product touted as the "twin brother of Triethylenetetramine (TETA)" N4-Amine.

 

IMG_256

 

Appearance

Colorless clear liquid

Purity

98% min

Color (APHA)

50 max

Water Content

0.5 max

Amine Value mgKOH/g

1200 min

Density 25°C

0.95g/cm³

Boiling Point

314.9 °C

Flash Point

153.1 °C

 

N4-AMINE (N,N'-Bis(3-aminopropyl)ethylenediamine) is a propylene-based aliphatic amine. As a colorless, transparent liquid, it serves as an excellent substitute for ethylene polyamines. Classified as an aliphatic polyfunctional amine, N4-AMINE offers a powerful alternative beyond standard ethylene amines. With its low viscosity and rapid gelation speed, its active hydrogen characteristics make modification a breeze. It not only boasts exceptional toughness but also delivers outstanding adhesion, making its performance advantages clear and evident.

 

Need fast drying and high strength? Choose N4-Amine.

In daily applications, it reacts incredibly fast. When paired with YLE-128, it handles both low-temperature environments and rapid curing requirements with ease. N4-AMINE is truly an all-rounder. Looking for an efficient, powerful, and stable adhesive material? You can't go wrong choosing N4-AMINE!

Moreover, N4-AMINE can replace traditional ethylene amines in modification processes. For modified polyamides, it offers faster gelation speeds and stronger paint film adhesion.

 

From epoxy resin curing agents to polyurethane accelerators, N4-AMINE has a wide range of applications, bringing convenience to various industries. Its packaging options are equally flexible: while the standard is a 190KG drum, we can also provide IBC totes to meet your specific needs.

 

 

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2026-07-15

When it comes to large-scale exports of epoxy resins—whether in liquid, solid, or semi-solid form—ensuring safe transport, regulatory compliance, and on-time delivery is essential. At Yolatech, we’ve compiled the following practical tips to help professionals in trade, manufacturing, and logistics plan more efficiently and execute with confidence.

 

1. Choose the Right Packaging Format

Proper packaging is the first line of defense against leakage, contamination, and damage during transport.

  • Liquid resins: We recommend 200L/240KG steel drums, 1000L IBC tanks, or ISO tank containers for bulk shipping. Packaging must be leak-proof and corrosion-resistant.

  • Solid resins: Typically packed in multi-layer kraft paper bags with plastic liners or fiber drums to prevent moisture ingress.

  • Semi-solid resins: Should be stored in tightly sealed metal or thick plastic drums to avoid deformation or softening, especially in hot climates.

Tip: Labels should clearly display product name, batch number, net/gross weight, and hazard symbols if applicable.


2. Follow Dangerous Goods Transport Regulations

Some epoxy resins are classified as hazardous materials. It is important to:

  • Check the MSDS (Material Safety Data Sheet) for transport classification;

  • Ensure compliance with IMDG (marine), IATA (air), or ADR (road) regulations depending on the shipping mode;

  • Apply proper hazard labels on all packaging (e.g., corrosive, environmentally hazardous).

Following regulations is not only a legal requirement but also critical for safety and customs clearance.


3. Palletizing and Load Securing

To improve handling and protect goods during shipment:

  • Use fumigated wood pallets (with IPPC marking) or plastic pallets, depending on import country requirements;

  • Secure all drums or bags on pallets using stretch film and strapping bands;

  • Add anti-slip sheets, corner guards, or partition pads to reduce movement and minimize risk of damage.

     

4. Plan Routes and Schedules Carefully

Some specialty epoxy resins are sensitive to heat and should not be exposed to high temperatures for extended periods. In summer, refrigerated containers are recommended to maintain product stability.

Be sure to check the customs regulations, public holidays, and vessel schedules at both origin and destination. Build in sufficient lead time to avoid unexpected delays.


5. Work with Experienced Logistics Partners

Partner with freight forwarders who have specific experience handling chemical and hazardous goods shipments.

For first-time shipments or newly adopted packaging methods, we recommend thorough pre-shipment coordination between seller and buyer to confirm all details, including labeling, pallet configuration, and document accuracy.

Maintain real-time communication with both the logistics provider and your customer throughout the shipping process.


6. Prepare All Required Documentation in Advance

Common export documents include:

  • Commercial invoice & packing list

  • COA (Certificate of Analysis) or test report

  • Bill of Lading (B/L) or Air Waybill (AWB)

  • Export license, MSDS, or Certificate of Origin (as required by the destination country)

Ensure all document content is consistent with product labels to avoid clearance delays or inspection issues.

 

Proper packaging, complete documentation, and efficient logistics planning are the cornerstones of successful epoxy resin exports. As a professional manufacturer, Yolatech understands that every shipment is not just a delivery—it’s a commitment to quality and reliability.

 

If you need support in selecting epoxy resin products, designing packaging solutions, or arranging international shipments, feel free to reach out to the Yolatech team. With stable products and responsive service, we’re here to support your global operations with confidence.

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2026-07-15

 

In the world of industrial coatings, adhesives, composites, and electrical insulation, epoxy resins are essential for their outstanding performance and versatility. Among them, YLE-128 epoxy resin stands out as a high-quality Bisphenol-A based liquid epoxy resin that is trusted by manufacturers and formulators worldwide. In this article, we’ll explore what YLE-128 is, its key properties, typical applications, and why it is considered a reliable and consistent alternative to mainstream options like Epon 828, YD-128, and D.E.R. 331.


What Is YLE-128?

YLE-128 is a liquid Bisphenol-A type epoxy resin with a medium molecular weight and an epoxy equivalent weight (EEW) typically ranging between 184–194 g/eq. It is produced through the reaction of Bisphenol-A with epichlorohydrin, resulting in a highly reactive resin with excellent chemical resistance, mechanical strength, and adhesion characteristics.

This resin is often referred to as a standard liquid epoxy resin (LER) and serves as a base component for many two-component systems, especially when combined with various hardeners (amines, anhydrides, etc.).


Key Properties of YLE-128

Property

Typical Value

Appearance

Clear, colorless to pale yellow liquid

Viscosity @ 25°C

11,000–15,000 mPa·s

Epoxy Equivalent Weight

184–194 g/eq

Color (Gardner)

≤ 1

Density @ 25°C

~1.16 g/cm³

Flash Point (Closed cup)

> 150°C

 

 

These properties make YLE-128 suitable for both ambient and heat-cure formulations across multiple industries.

 

Applications of YLE-128 Epoxy Resin

Thanks to its versatility, YLE-128 is used in a wide range of industrial and commercial applications:

1. Protective Coatings

  • Used in anti-corrosion coatings for pipelines, storage tanks, marine equipment, and concrete floors.
  • Offers excellent chemical resistance and strong adhesion to substrates.

2. Adhesives

  • Applied in structural adhesives for metal, plastic, wood, and composite bonding.
  • Compatible with a variety of curing agents to tailor performance.

3. Composites

  • Widely used in wind turbine blades, automotive components, and sporting goods.
  • Reinforced with glass or carbon fibers for lightweight strength.

4. Electrical Insulation

  • Suitable for potting and encapsulating transformers, insulators, and circuit boards.
  • High dielectric strength and excellent dimensional stability.

5. Construction

  • Utilized in flooring systems, epoxy mortars, and anchoring applications.
  • Good resistance to moisture, solvents, and mechanical wear.


Why Choose YLE-128?

A Reliable Alternative to Global Brands

  • Consistent Quality: Manufactured under strict quality control, YLE-128 offers batch-to-batch consistency.
  • Competitive Pricing: More cost-effective than Western brands without compromising performance.
  • Flexible Supply: Readily available and supported by responsive technical service.
  • Global Compatibility: Interchangeable with industry-standard grades such as:
    • Epon 828 (Hexion)
    • D.E.R. 331 (Dow)
    • YD-128 (Kukdo)


Final Thoughts

YLE-128 epoxy resin has proven itself as a reliable, high-performance material across multiple industries. Whether you are formulating coatings, adhesives, or insulation systems, YLE-128 offers the performance of top international brands with the added benefits of affordability and dependable supply.

For formulators seeking a Bisphenol-A based liquid epoxy resin that meets demanding standards, YLE-128 is a name worth remembering.

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2026-07-15

YLEP-638 Structural Characteristics

The molecular backbone of YLEP-638 is a phenolic novolac structure formed by the condensation of phenol and formaldehyde, providing a rigid aromatic framework. This backbone itself has very high thermal stability and rigidity.
On this phenolic framework, the hydroxyl groups react with epichlorohydrin to introduce multiple epoxy groups, making it a typical multifunctional epoxy resin. Unlike standard bisphenol-A type epoxy resins (such as E-51, functionality ≈ 2), YLEP-638 usually has an average epoxy functionality of 3.5 to 4.0 or even higher.


Performance Features of YLEP-638

Outstanding Heat Resistance

  • Origin: High crosslink density (resulting from high functionality) and rigid aromatic backbone.

  • Performance: The cured product exhibits extremely high glass transition temperature (Tg) and heat distortion temperature (HDT), typically above 200°C and even up to 250°C. It maintains mechanical strength and dimensional stability under high temperatures with excellent creep resistance.

Exceptional Mechanical Strength and Modulus

  • Origin: Dense three-dimensional crosslinked network and rigid molecular chains.

  • Performance: The cured product shows very high hardness, compressive strength, tensile strength, and modulus, giving it strong load-bearing capacity.

Excellent Chemical Resistance

  • Origin: The high crosslink density creates a compact and chemically inert network structure, making it difficult for solvents or chemical agents to penetrate or swell the material.

  • Performance: It offers outstanding resistance to a wide range of organic solvents, acids, and alkalis. Its chemical resistance, particularly at high temperatures, is far superior to that of conventional epoxy resins.

Superior Electrical Insulation Properties

  • Origin: Stable chemical structure and high crosslink density.

  • Performance: Maintains excellent dielectric strength and volume resistivity even under high temperature and humidity conditions.

Processing Challenges

  • High Viscosity: Due to its high functionality and rigid structure, YLEP-638 has very high viscosity at room temperature and must be heated (e.g., to 60–80°C) for casting, impregnation, or prepreg preparation.

  • High Brittleness: The high crosslink density and rigid structure also result in low toughness, poor impact resistance, and low elongation at break, so it often requires the addition of toughening agents.


Main Applications of YLEP-638

  • YLEP-638 + DOPO
    Used to produce halogen-free phosphorus-containing epoxy systems, successfully incorporating efficient phosphorus-based flame-retardant units into a high crosslink density epoxy network. The resulting materials combine excellent mechanical properties, heat resistance, and flame retardancy, making them ideal for green electronic encapsulation, halogen-free PCBs, high-performance flame-retardant insulating materials, and aerospace composites. Also used in carbon fiber prepregs, tennis rackets, and golf clubs.

 

  • YLEP-638 + Methacrylic Acid / Styrene
    Used to produce high-temperature- and corrosion-resistant phenolic epoxy vinyl ester resins, widely applied in flue gas desulfurization (FGD), power plant desulfurization tower linings, chemical storage tanks, and scrubbers for harsh environments.

 

  • YLE-128 + YLEP-638 + YLE-601 or YLE-604
    Used for solder mask inks in copper-clad laminates and for anti-corrosion, high-temperature coatings (such as 900–1200°C heat-resistant and anti-oxidation coatings).

 

  • YLEP-638 + Curing Agent DDS
    Used to produce epoxy insulating varnishes for VPI (Vacuum Pressure Impregnation) processes, forming a strong, integrated “armor” layer on electrical coils. This layer resists high-voltage breakdown and withstands the intense heat and mechanical stress generated during motor operation. It is an essential insulation material for modern high-end electrical equipment, used in high-voltage motors, wind power generators, and traction motor stator coils, providing both insulation and flame-retardant protection. Also used in the manufacture of insulating tubes, rods, and plates.

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2026-07-15

Yolatech Company DMP-30 Equivalent Grades: K54, KH-30, HI-54K, HY960.

 

Yolatech DMP-30 consists of 2,4,6-Tris(dimethylaminomethyl)phenol. It is a versatile curing accelerator designed to shorten the curing time of epoxy resin systems. It exhibits excellent compatibility with Polyamine and Polyamide series epoxy curing agents. It is soluble in alcohol, benzene, acetone, and cold water, and slightly soluble in hot water.

 

Physical Properties

  • Chemical Name: 2,4,6-Tris(dimethylaminomethyl)phenol
  • Synonyms: DMP-30 / K-54 / Accelerator Catalyst HI-54K
  • Molecular Formula: C₁₅H₂₇N₃O
  • Molecular Weight: 265.4
  • CAS Number: 90-72-2
  • EINECS Number: 202-013-9
  • Appearance: Transparent light yellow liquid
  • Color: Max 6 (Gardner)
  • Amine Value: 580-630 mgKOH/g
  • Viscosity (25°C): 100-300 cps (Brookfield)
  • Moisture Content: Max 0.5%
  • Refractive Index (20°C): 1.5150-1.5200
  • Specific Gravity (25°C): 0.97-0.99
  • Flash Point: 150°C

 

 

Applications

DMP-30 serves as a curing accelerator in solvent-based or solvent-free epoxy systems, including:

  • Polyamine series curing systems.
  • Polyamide and Amidoamine series epoxy curing systems.
  • Mercaptan (Thiol) series epoxy curing systems.
  • Carboxylic Acid Anhydride or Polysulfide series epoxy curing systems.

It is widely used in coatings, adhesives, and flooring industries. It acts as a catalyst for epoxy automotive body adhesives, epoxy-anhydride systems, and as a solid catalyst for isocyanates and polyols.

 

 

Mechanism of Action

The reaction between epoxy resin (containing epoxy groups) and amine curing agents (such as aliphatic amines and polyamides) is a nucleophilic ring-opening reaction: the amine group (-NH₂) attacks the ring of the epoxy group, opening the ring to form hydroxyl groups (-OH), which then undergo further crosslinking.However, this reaction is slow at room temperature (especially in low-temperature environments). DMP-30's phenolic hydroxyl group activates the epoxy group via hydrogen bonding, while the dimethylamino group (-N(CH₃)₂) acts as a nucleophile to promote the combination of the amine and epoxy groups. This significantly lowers the activation energy, shortening the curing time by 30%-50% (e.g., at 25°C, curing takes 24 hours without accelerator, but only 8-12 hours with DMP-30).

 

Recommended Dosage

1. As Epoxy Curing Agent: When used alone, the dosage for YLE-128 epoxy resin (Epoxy Equivalent Weight 185-195) is approximately 10%. It enables rapid curing at room temperature or low temperatures for coatings, castings, and sealants. For YLE-220 epoxy resin, the dosage is approximately 12.5%. For Epoxy-Liquid Polysulfide systems, the dosage is 10-15% for room temperature curing and 6% for heat curing. It imparts unique bonding, casting, and sealing properties. Typical range: 5-15 PHR.

2. As Epoxy Accelerator: When mixed with other epoxy curing agents, it acts as an accelerator to increase curing rates. Dosage is 0.1%-3% PHR of the main curing agent. Widely used in anti-corrosion coatings, cast floor concrete protection, and adhesives.

3. As Polyurethane Catalyst: It is a catalyst for isocyanate trimerization. It has higher catalytic selectivity for Polyisocyanurate (PIR) reactions compared to PUR, making it suitable for PIR formulations. DMP-30 is a milder activity catalyst; it requires a larger dosage in formulations, resulting in a gentle reaction, stable rise, good flowability, and end products with PIR high-temperature and flame-retardant effects.

 

 

Advantages

  • Highly efficient acceleration (strong low-temperature applicability).
  • Improves coating film hardness and chemical resistance.
  • Good compatibility with most epoxy resins and curing agents (no phase separation).

 

 

Limitations

  • May experience slight yellowing upon long-term UV exposure (due to phenolic hydroxyl oxidation), making it unsuitable for outdoor high-gloss flooring.
  • Irritating to skin; potential for trace formaldehyde release. Protective equipment must be worn during application.

 
 

Storage & Handling

Avoid excessive heat and humidity. Store in unopened original containers at room temperature, away from fire sources, strong acids, strong bases, and strong oxidizing agents. Shelf life is 12 months from the date of production.

Precautions: Please refer to the Yolatech Product DMP-30 Material Safety Data Sheet (MSDS).

Packaging: 200Kg drum, 1000 IBC.

 

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2026-07-09

For decades, Anhui Wolong Pump & Valve Co., Ltd. has focused on independent R&D and full-scale production of industrial chemical pumps. Rooted in 40 years of deep industry accumulation and precise insight into diverse production pain points of chemical enterprises, we have developed a complete lineup of anti-corrosion pump products tailored to real-site complex working scenarios. Whether production lines face continuous high-temperature, high-pressure circulation environments, or need to transport weakly & moderately corrosive acid, alkali, solvent and process wastewater, our full series industrial chemical pumps can maintain stable, long-cycle operation without frequent breakdowns or medium leakage. Taking strict product quality control as our core foundation, we deliver reliable fluid transportation equipment and systematic technical support to guarantee uninterrupted, low-failure production for petrochemical, pharmaceutical, electroplating, papermaking, rare earth smelting and chlor-alkali B-end manufacturers worldwide.

 

Among our abundant pump product portfolio covering fluoroplastic magnetic pumps, horizontal chemical centrifugal pumps, self-priming pumps and vertical pipeline pumps, the IHG series stainless steel pipeline centrifugal pump stands out as a mainstream inline process pump widely adopted by medium and factories. The 50IHG-20 stainless steel pipeline pump independently developed and manufactured by Anhui Wolong Pump & Valve Co., Ltd. strictly complies with ISO2858 international standards, with all overcurrent components forged from premium 304/316L stainless steel . Equipped with wear-resistant silicon carbide mechanical seal, the 50IHG-20 stainless steel pipeline pump thoroughly eliminates dripping leakage, meeting environmental protection and safety production standards of industrial parks. Its moderate flow and head parameters perfectly match solvent circulation, pickling liquid transfer, pharmaceutical raw material delivery and workshop cooling water circulation; thousands of fine chemical and electroplating enterprises have replaced outdated cast iron pumps with Wolong 50IHG-20 pipeline pump to cut maintenance frequency and extend equipment service life.

 

Anhui Wolong Pump & Valve Co., Ltd. always adheres to the development philosophy of technology-driven innovation and quality-oriented manufacturing. Every pump including the 50IHG-20 stainless steel pipeline pump is produced under standardized quality management system to guarantee stable performance under long-term continuous operation. We continuously optimize hydraulic design and material formula to reduce energy consumption and lower customers’ equipment replacement costs.chemical industry pump

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