Thermal Stability Enhancement for Powder Coatings

Crosslinking Chemistry

Silane-modified polyester resins utilize two-stage curing:

120-140°C: Silanol condensation forms inorganic Si-O-Si network

180-200°C: Polyester crosslinking completes

Thermal Performance

Property Standard Polyester Silane-Modified

TGA Onset Temp 280°C 305°C

Yellowing Index 8.2 2.1

Impact Resistance 80 in-lb 120 in-lb

Appliance Coating Case

Whirlpool's oven coatings withstand 250°C continuous operation with 50% less discoloration compared to conventional systems.