Overview
Bisphenol A epoxy resin, often referred to as BPA epoxy resin or DGEBA (diglycidyl ether of bisphenol A), is produced by reacting bisphenol A with epichlorohydrin. It is one of the most widely used epoxy resin types in industrial and B2B chemical markets due to its balance of mechanical strength, adhesion, chemical resistance and processing versatility.
Buyers sourcing bisphenol A epoxy resin typically evaluate epoxy equivalent weight (EEW), viscosity and grade (liquid or solid) to match a specific coating, adhesive, electrical or composite formulation.
Key Properties and Benefits
- High mechanical strength and rigidity after curing
- Strong adhesion to metal, glass and composite substrates
- Good chemical and solvent resistance
- Excellent electrical insulation properties
- Compatible with a wide range of curing agents, including amine, polyamide and anhydride systems
Common Grades
Bisphenol A epoxy resins are typically supplied in liquid and solid grades:
- Liquid bisphenol A epoxy resin (EEW approximately 180-190 g/eq): used in coatings, adhesives, casting and laminating where low viscosity and easy processing are required.
- Solid bisphenol A epoxy resin (EEW approximately 450-3,000+ g/eq): used mainly in powder coatings, can coatings and applications requiring higher molecular weight and toughness.
Recommended Applications
- Protective and industrial coatings
- Structural and electrical adhesives
- Electronic encapsulation and potting compounds
- Fiber-reinforced composite laminates
- Flooring and construction coatings
- Powder coating formulations (solid grades)
Selection Guide
When selecting a bisphenol A epoxy resin grade, buyers should confirm the target EEW range for the curing system, the viscosity required for the application method, the intended cure schedule and compatible curing agent, and any regulatory or performance requirements specific to the end use. Our technical team can help match a grade to your target properties and processing conditions.
Supply and Documentation
Please contact us to confirm current packaging, minimum order quantity, lead time and regional availability. TDS, SDS and COA documentation can be provided upon request.
FAQ
What is bisphenol A epoxy resin used for?
It is mainly used in protective coatings, adhesives, electrical encapsulation and composite laminates because of its mechanical strength, adhesion and chemical resistance.
What is the difference between liquid and solid bisphenol A epoxy resin?
Liquid grades have a lower EEW and viscosity and are suited to coatings and casting, while solid grades have a higher EEW and are used mainly in powder coatings and can coatings.
What curing agents are compatible with bisphenol A epoxy resin?
Common curing agents include amines, polyamides and anhydrides, selected based on target cure speed, pot life and final performance.
Is bisphenol A epoxy resin the same as DGEBA?
Yes. Bisphenol A epoxy resin is commonly referred to as DGEBA (diglycidyl ether of bisphenol A), the most common epoxy resin backbone.
Can you provide TDS, SDS and COA for bisphenol A epoxy resin?
Yes, current technical and safety documentation can be requested from our sales team.
