Trimellitic Anhydride Powder Coating Polyester Resins Fast Curing
TMA Free 70:30 Epoxy Polyester Resins for Hybrid Powder Coatings, Fast Curing
Economical Epoxy Polyester Resin TMA free HH2781 with Fast Curing, Good Flow and Impact Resistance
Trimellitic anhydride (TMA) is an important chemical intermediate and an important raw material for polyester resin, polyimide resin, PVC heat-resistant plasticizer, epoxy resin curing agent, dye capacitor impregnating oil and adhesives and other products. However, TMA is respiratory sensitizing, and can cause severe and permanent damage to lung function if exposed for prolonged periods of time and without intervention. In order to comply with environmental protection requirements, the application of non-TMA resins will become a future trend.
HH2781 is a completely TMA free hybrid polyester resin.
☉Basic Features:
Good mechanical properties
Good leveling
Good reactivity
☉Specifications:
| Appearance | White or Light Yellow Transparent Flakes |
| Color (50% DMF) | max:3 |
| Acid Number (mgKOH/g) | 30～36 |
| Softening Point (℃) | 95～105 |
| Glass Transition Temp. ( ℃) | ～56 |
| Melting Viscosity (ICI, mPa·s/200℃) | 4500～6500 |
| Reactivity at 180℃ (s, 30% Epoxy) | 120～240 |
☉Application Condition:
Electrostatic spraying with: 40～70KV
Coating film thickness: 50～70μm
Degreased cold-rolled steel: 0.5mm
☉Curing Requirement: 180℃×10min.
☉Package: PE Bags, Net Weight 25kg±0.1kg / bag
☉Remarks: All the polyester resins could be customized to Non-tin (A), anti gas burners (G), tribo gun (T) and anti-blooming (F).
☉Product Show:
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