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Moisture-containing fillers, improper drying, or incompatible surface treatments can release gases during curing, creating pinholes or porosity. Dry, surface-treated fillers help maintain a smooth film.

Yes. We suggest optimized filler types (barium sulfate, calcium carbonate, talc, etc.) and loading levels based on gloss target, mechanical performance, cost requirements, and compatibility with TGIC, HAA, hybrid, or special-effect formulations.

Fillers with poor UV stability or high reactivity may accelerate chalking or color fading. UV-stable, inert fillers—combined with optimized resin–pigment systems—help improve long-term outdoor performance.

Yes. Certain fillers may absorb curing heat or interfere with melt flow, slowing cure speed or causing incomplete crosslinking. Selecting thermally stable fillers and optimizing filler loading prevents these issues.

Poorly dispersed fillers can create weak points within the film, reducing impact resistance and flexibility. Uniform dispersion enhances mechanical balance and improves the overall film integrity.

Fillers affect surface smoothness and gloss by altering the resin’s melt viscosity and flow behavior. Fine-particle fillers can reduce gloss, while coarser fillers may create texture. Proper particle-size control and resin compatibility ensure consistent appearance.