Description

D.E.R.(R) 332 is a high-purity, low molecular weight liquid epoxy resin based on bisphenol A and epichlorohydrin. This product is valued for its excellent chemical resistance, strong adhesion, and versatile processing characteristics, making it a fundamental building block in advanced polymer formulations. It is essential for manufacturers requiring reliable, high-performance thermosetting materials for demanding industrial applications.

Application

• High-Performance Coatings & Adhesives: Used as a primary resin in protective coatings, marine paints, and structural adhesives for superior durability and bond strength.
• Electrical & Electronic Encapsulation: Serves as a key component in potting compounds, encapsulants, and insulating varnishes for transformers and circuit boards.
• Composite Materials: Acts as the matrix resin in fiber-reinforced composites for aerospace, automotive, and wind energy components.
• Civil Engineering & Construction: Employed in flooring systems, grouts, and concrete bonding agents for chemical-resistant and high-strength applications.
• Tooling & Molding: Used in the production of master models, patterns, and molds due to its low shrinkage and dimensional stability upon curing.

Basic Information

Product Name	D.E.R.(R) 332
CAS No.	25085-99-8
Molecular Formula	C21H24O4
Molecular Weight	340.41 g/mol
Synonyms	Bisphenol A diglycidyl ether; DGEBA; Epoxy resin (Bisphenol A-based); 2,2'-[(1-Methylethylidene)bis(4,1-phenyleneoxymethylene)]bisoxirane; Epon 828; Araldite GY 250; Epikote 828; BADGE; 1-Chloro-2,3-epoxypropane polymer with 2,2-bis(4-hydroxyphenyl)propane
EINECS	246-574-0

Quality Control

Our D.E.R.(R) 332 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high performance. Quality is verified through comprehensive analytical testing, including epoxide equivalent weight (EEW), viscosity, and hydrolyzable chloride determination. A Certificate of Analysis (COA) documenting all key specifications is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Keep away from heat, sparks, and open flame. Under recommended storage conditions, the product has a typical shelf life of 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Clear, pale yellow viscous liquid
Epoxide Equivalent Weight (EEW)	172 - 176 g/eq
Viscosity (at 25°C)	11,000 - 14,000 mPa·s
Color (Gardner)	≤ 2
Hydrolyzable Chloride	≤ 0.1 %
Weight per Epoxide (WPE)	172 - 176
Specific Gravity (at 25°C)	1.16 - 1.17

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.