Fillers
ATH, calcium carbonate, fumed silica, glass microspheres and specialty fillers
Flame Retardant Fillers
7 products
ATH Aluminum Trihydrate (Fine Grade, d50 3µm)
CAS 21645-51-2
Fine particle size for superior surface quality and mechanical retention
ATH Aluminum Trihydrate (Silane Surface Treated)
CAS 21645-51-2
Organosilane surface treatment forms covalent bonds with resin matrix
ATH Aluminum Trihydrate (Standard Grade, d50 8µm)
CAS 21645-51-2
Halogen-free flame retardant with simultaneous smoke suppression
ATH Aluminum Trihydrate (Ultrafine, d50 1µm)
CAS 21645-51-2
Sub-micron particle size for maximum mechanical reinforcement and clarity
Bulk Fillers
11 products
Barium Sulfate (Barite, d50 5µm, High Density)
CAS 7727-43-7
Extremely high density (4.48 g/cm³) for high-density composite design
Calcined Kaolin (Anhydrous, d50 2µm)
CAS 1332-58-7
Anhydrous (LOI <0.5%) — suitable for moisture-sensitive resin systems
Calcium Sulfate Anhydrite (CaSO4)
CAS 7778-18-9
Anhydrous form — no setting reaction, safe in moisture-containing environments
Crystalline Silica / Quartz Powder (d50 15µm)
CAS 14808-60-7
Excellent chemical resistance to all acids except HF — ideal for chemical process FRP
Thixotropic Fillers (Fumed Silica)
7 products
SEMISIL 150 Fumed Silica (BET 150 m²/g, Hydrophilic)
CAS 112945-52-5
Moderate thixotropy grade — easy to incorporate with lower viscosity impact
SEMISIL 200 Fumed Silica (BET 200 m²/g, Hydrophilic)
CAS 112945-52-5
Industry-standard 200 m²/g hydrophilic grade for universal thixotropic performance
SEMISIL 300 Fumed Silica (BET 300 m²/g, Hydrophilic)
CAS 112945-52-5
High surface area delivers 25–35% stronger thixotropy per unit weight vs. SEMISIL 200
SEMISIL 380 Fumed Silica (BET 380 m²/g, Hydrophilic)
CAS 112945-52-5
Highest surface area hydrophilic grade (380 m²/g) for maximum thixotropic efficiency
Lightweight Fillers
5 products
Cenospheres (Fly Ash Microspheres, Lightweight)
CAS 68131-74-8
Lightweight hollow ceramic spheres — density 0.4–0.8 g/cc at very low cost
Expanded Perlite (Lightweight Filler)
CAS 93763-70-3
Ultra-low density (0.15–0.35 g/cc) for maximum weight reduction at minimum cost
Hollow Glass Microspheres (K1, Density 0.125 g/cc)
CAS 65997-17-3
Ultra-low density (0.125 g/cc) for maximum weight reduction in composites
Hollow Glass Microspheres (K20, Density 0.20 g/cc)
CAS 65997-17-3
Balanced density/strength ratio for medium-pressure processing
Reinforcing Fillers
8 products
Carbon Black (N330, Conductive Grade)
CAS 1333-86-4
Broad UV absorption — most effective UV stabilizer for black composites (0.5–2 phr)
Copper Powder (Conductive Composite Filler)
CAS 7440-50-8
High electrical conductivity (bulk Cu: 5.8×10⁷ S/m) for EMI shielding applications
Muscovite Mica (Flake, d50 120µm)
CAS 12001-26-2
Extremely high aspect ratio (>30:1) for superior barrier and reinforcing properties
Phlogopite Mica (Heat Resistant, d50 100µm)
CAS 12251-00-2
Maximum thermal stability to 1000°C — outperforms muscovite in high-temperature use