Leveraging advanced thermo-mechanical properties, Wacker HDK H30RY is a methacrylic-functional hydrophobic fumed silica with ~300 m²/g surface area and ~7% carbon content. Its chemically modifiable groups covalently bond to resin networks (e.g., vinyl esters/polyesters/acrylates), enhancing mechanical strength and weatherability in coatings/adhesives, with pH 5-8 and 80 g/L tapped
Covalent Reinforcement: 40% higher tensile strength via copolymerization with resins
Hydrophobic Excellence: Water contact angle >120°, 50% better moisture resistance
Broad Compatibility: Stable in solvent/solvent-free polar systems
Process Efficiency: 0.3-2% dosage achieves thixotropic index 3.0
Eco-Safe: PDMS-free, REACH/GB 30981-2020 compliant
Industrial Coatings: Crater-free automotive clear coats (DOI≥95), 3000h QUV resistance
Adhesives: +35% shear strength in epoxy structural adhesives for wind turbine blades
Sealants: PU sealants with <2mm sag (ASTM D2202)
Nail Gels: UV-curable formulations with 4H pencil hardness
Chemical Type | Methacrylic-silane modified silica |
Appearance | White fluffy powder |
Surface Area (BET) | ~300 m²/g |
Tapped Density | 80 g/L |
Carbon Content | ~7% |
pH (4% methanol-water) | 5-8 |
Moisture Content | <1% |
SiO2 Content | >99.8% |
Packaging | 10kg/moisture-proof paper bag |
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China