Epoxy Resin E44

Basic Information:
Material:Epoxy Resin
Color: Transparent
Shelf Life: 12 Months
Model Number:E51
Payment Terms: L/C T/T Credit Card

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Product Introduction

Epoxy resin E44 Production Description

Epoxy resin E44 is soluble in benzene, toluene, xylene, acetone and other organic solvents. Good fluidity, easy to mix with auxiliary materials, convenient molding and processing, good dimensional stability after curing, shrinkage less than 2%, it is the resin with the smallest shrinkage rate of thermosetting resin, thermal expansion coefficient 6-10.5% - excellent bonding performance, good electrical insulation performance, mechanical performance and chemical stability.


Epoxy resin 6101 is particularly suitable for preparing mica insulating materials, epoxy glass insulating plates and reinforcing materials. Because of its moderate viscosity, it is especially suitable as a hand laid FRP anti-corrosion material, which is required for large cement tanks, iron storage tanks, tank cars and other anti-corrosion materials. 6101 epoxy resin (E44), together with room temperature curing agent and active diluent, can be used to firmly stick the work cloth on the surface of the lining material with simple manual operation to form an epoxy FRP anti-corrosion coating. Therefore, it is widely used in chemical plants, distilleries, sewage treatment plants and other places where anti-corrosion is required.

Epoxy resin E44 is mainly used for pipes and containers in the chemical industry, as well as parts and components of automobiles, ships and aircraft, sports appliances, casting stators in motors, motor shells and transformer components, and can also be used for casting and laminating into molds in large quantities. Its foamed plastics can be used as insulating materials, sandwich materials with high weight and longitude, adhesives, anti-corrosion materials, shockproof packaging materials, floating materials, aircraft sound absorbing materials and coating industries.

1. Ornament Splice 2. Floor Coating 3. Insulation Material

4. Wind Power Blade Plate 5. A B Glue 6. Electrical Industry

epoxy resin e44

Property and Characteristic

High mechanical properties. Epoxy resin E44 has strong cohesion and dense molecular structure, so its mechanical properties are higher than those of general thermosetting resins such as phenolic resin and unsaturated polyester.

Strong adhesion. The curing system of epoxy resin contains epoxy group, hydroxyl group, ether bond, amine bond, ester bond and other polar groups with great activity, which endows the epoxy cured material with excellent adhesion to polar substrates such as metal, ceramics, glass, concrete and wood.

Good processability: epoxy resin basically does not produce low molecular volatiles when curing, so it can be molded under low pressure or contact pressure. Epoxy resin E44 can be used with various curing agents to manufacture solvent-free, high solid, powder coatings, water-based coatings and other environment-friendly coatings.

Excellent electrical insulation: Epoxy resin is one of the best varieties of thermosetting resin with medium electrical properties.

Good stability and chemical resistance. The epoxy resin without impurities such as alkali and salt is not easy to deteriorate. As long as it is properly stored (sealed, free from moisture and high temperature), the storage period is 1 year. It can still be used if it passes the inspection after expiration. The epoxy curing compound has excellent chemical stability. Its corrosion resistance to alkali, acid, salt and other media is better than that of unsaturated polyester resin, phenolic resin and other thermosetting resins. Therefore, epoxy resin is widely used as anti-corrosion primer. Because the cured epoxy resin has a three-dimensional network structure and is resistant to oil impregnation, it is widely used in the inner wall lining of oil tanks, oil tankers and aircraft.

Technical Data for E44


Epoxy Resin


Product Model


Test Item

Technical Indicators

Test Result


Colorless Transparent Liquid


Epoxy Equivalent g / Eq

220 ~ 226


Hydrolyzed Chlorine PPm



Inorganic Chlorine PPm



Chroma pt-co



Softening Point

14 ~ 20


Minimum Molecular Weight (N=0)

78.0 ~ 86.0


Epoxy Value = 0.457

Differences Between Epoxy resin E44 and E51

Epoxy value is the most important index to identify the properties of epoxy resin, and industrial epoxy resin models are distinguished according to different epoxy values. The epoxy value refers to the number of bursts of epoxy based substances contained in every 100g of resin. E-51 is a brand, representing the average epoxy (51/100=0.51, epoxy value N/100 is 0-18-0.54). E-44 epoxy resin represents the average epoxy value of 44/100, and (0.41-0.47) epoxy resin with high epoxy value has low viscosity, high viscosity and high brittleness after curing.

1. E51 epoxy resin and E44 epoxy resin are bisphenol A epoxy resin. The difference in molecular structure between E44 epoxy resin and E44 epoxy resin is that E44 molecular weight has a small amount of hydroxyl group in the polymer, which is beneficial to increase the bonding strength and improve the curing speed.

2. The epoxy resin E51 cured with the same curing agent has high hardness and good chemical resistance, which is suitable for solvent-free floor coatings in the electronic industry; E44 epoxy resin is suitable for coating and adhesive.

Factory Equipment

Hebei Linyuan Fine Chemical Co., Ltd. was established in January 2017, and it was funded and constructed by Hebei JingHong Electronic Technology Co., Ltd and its subsidiary Hongda Insulation Material Factory which specialize in the production of 3240 Epoxy Resin Board, FR4 Fiberglass Sheet, Phenolic Cotton Cloth Laminate Sheet 3026, phenolic paper board and copper clad laminate.

JingHong had a factory before in Xiong'an New District, Hebei, which produced E44 epoxy resin only. The production volume was small and part of it was used for its own. Therefore, there was not much sales in the market. Due to the wide applications of epoxy resin, China has become the world's largest producer and consumer of epoxy resins. In order to comply with the market trend, the company combined the company's own situation, withdrew from Xiong'an New Area, and built an epoxy resin factory with an annual output of 20,000 tons in Cangzhou. The project has been completed and put into production.

The project is designed with reference of Japan’s Toto Kasei technology. The current production of epoxy resins include E44, E51, etc., and varieties will be gradually added according to market demand in the future. The person who take in charge of the company said: At present, the epoxy resin production capacity is 20,000 tons. According to the actual market situation, the production capacity is going to expand to 100,000 tons.

epoxy resin 6101

Storage and Shipping

When storing epoxy resin, please keep away from direct sunlight, heat source, ignition point and waterproof. Dangerous goods shall be stored according to regulations. If they are not used up after opening, they shall be sealed for storage. The shelf life of epoxy resin is generally 1 years, and it can still be used after passing the retest. Under relative conditions, such as storage at freezing temperature, some epoxy resins may crystallize, which is only a physical change and does not change their chemical properties. In case of crystallization, the resin can be heated to 70-80 ° C and restored to its original state by stirring.

epoxy resin e44


Epoxy resin is rarely used alone. Generally, auxiliary materials such as curing agent filler are used. Tertiary amine compounds are used as curing agents, which are usually 5 to 15% of the resin amount. Acid anhydride is used as curing agent, which is 0.1 to 3% of the resin amount. Polybasic adhesive is used as curing benefit. Epoxy resin is cut to 1:1 mol cal. 703 is used as curing agent, which can be used according to 1.0.4 (weight ratio)

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