Good Thixotropy Properties Matting Agent For Powder Coating Industries Matting agent DR-262 is hydrophobic fumed silica which is produced by hydrophilic fumed silica after chemical post-treatment with Polydimethylsiloxane/PDMS. Specification of matting agent Appearance White fine powder Silica content (based on ignited material) ≥99.8% Specific Surface Area(BET) 110±30m²/g pH (4% suspension,water to methanol ratio 1:1) 4.0-7.0 Loss on drying*1 (105℃,2h),% ≤0.7 Loss on
