Certificate of Analysis-COA
Inspection Item | Specification | Result | Test Method |
Epoxy Equivalent (g/mol) | 184–190 | 184.4 | GB/T 4612-2008 |
Viscosity (25℃, mPa·s) | 11,000–14,000 | 12720 | GB/T 22314-2008 |
Softening Point (℃) | — | — | — |
Color (Hazen units) | ≤25 | 14 | GB/T 3143-1982 |
Inorganic Chloride (%) | ≤0.001 | 0.00007 | GB/T 4618.1-2008 |
Hydrolyzable Chloride (%) | ≤0.050 | 0.0171 | GB/T 4618.2-2008 |
Volatile Matter (%) | ≤0.20 | 0.11 | GB/T 1725-2007 |
Appearance | Colorless or light yellow transparent liquid | Transparent, free of impurities | Visual Inspection |
Applications
1. For Protective And Floor Coatings: Bisphenol-A epoxy resin (DGEBA, CAS 25068-38-6) is a primary resin base for protective, anticorrosion and epoxy floor coatings, delivering excellent adhesion, chemical resistance and mechanical strength for industrial, marine and construction applications.
2. For Adhesives And Sealants: With strong bonding to metals, concrete, glass and plastics, BPA epoxy resin is widely used in two-component structural adhesives and sealants, providing durable, high-strength bonds for automotive, construction and industrial assembly.
3. For Composites And Laminates: As a thermosetting matrix resin, DGEBA epoxy combines with glass and carbon fiber to produce FRP laminates and structural composites for wind energy, marine, aerospace and sports equipment applications.
4. For Electronics And Electrical Materials: BPA epoxy resin is a key material for PCB laminates, electronic encapsulation, potting compounds and insulating paints, offering excellent dielectric properties and protection for electronic components and circuits.
5. Reliable Supply For Global Industry: Supplied in liquid and solid grades with consistent epoxy value and quality, BPA epoxy resin gives coating, adhesive, composite and electronics manufacturers a dependable resin base with stable supply, flexible packaging and professional technical support.
Quality Assurance
Every batch of chemicals leaves our factory with complete laboratory documentation — not a promise, but verifiable test data. From incoming raw material inspection to finished-goods release, each batch is tested against published specifications, and a Certificate of Analysis (COA) accompanies every single shipment. What you order is exactly what we test — and what we ship.
Tested by our in-house ISO 9001:2015 laboratory. Verified independently by third-party labs on request (SGS / BV / Intertek). Traceable from raw material to your warehouse.
Packaging
Liquid plastic drums
Liquid tonnes
Liquid iron drums
Export-grade packaging, custom labels
Solids (woven bags/cardboard drums/ton bags)
Liquids (plastic drums/IBC/ISO tanks)