Guangdong sealant with silica powder prices where good

A sealant with Microsilica Overview: Sealant microsilica microsilica with the treated water content of less than 0.1%, can be used to improve the colloidal sealant adhesive strength, yield value, shear thinning index. A thickener, reinforcement, tear, anti-aging effect. Second, our product specification sheet: Silica Sealant Specification 800 mesh 400 mesh 600 mesh mesh 1250 1000 1500 4000 2000 mesh mesh mesh mesh 8000 6000 10,000 head three head, a sealant Silica uses: silicon sealant powder is widely used in rubber, paints and coatings, electronic packaging materials, silicon substrate, functional chemical fiber, functional plastics, advanced ceramics, special refractories, sealants, adhesives and chemicals, pharmaceuticals, pesticides and the like. Fourth, a sealant Silica performance parameters: Product name commonly used mesh whiteness Mohs hardness Features sealant with more than 7-7.5 Silica Silica 800-200092 treated water content of less than 0.1%, for sealant adhesive strength can be improved colloid, yield value, shear thinning index. A thickener, reinforcement, tear, anti-aging effect. Fifth, the main features of the sealant with microsilica: is a white powder made from natural inorganic mineral raw microcrystalline quartz ore by crushing, pickling, grinding, drying, grading refining process, having a high brightness, through a sense of high dispersion, good leveling, low oil absorption, grains, and has compressive strength, tensile strength, impact resistance, wear resistance, corrosion resistance, chemical and physical properties and stability characteristics. ◇ Main Features: 1, quasi-spherical shape powder, greatly increasing the surface area, increasing the unsaturated resin and the sealant adhesive contact surfaces, improved mechanical strength. 2, the sealant is a special silica powder is chemically and physically stable neutral inorganic fillers, non-crystalline water does not participate in the curing reaction does not affect the reaction mechanism. 3, may increase the fill rate, lower cured linear expansion coefficient and shrinkage during curing, can reduce heat release during curing, extend the construction period. 4, filling increase, cured density, hardness, compressive strength, tensile strength, impact resistance and other mechanical strength is increased and wear resistance. 5, filling reduces production costs increased adhesive marble stone glue adhesive bonding agent. Six, sealant with microsilica significant physical properties comparison: Type Si02 Al (OH) 3 Mg (OH) 2 thermal shock resistance (288 ℃ / 20S, 10S cooled at room temperature to a cycle) 9 cycles 4 cycles 6 cycles peel strength (normal) 1.98N / mm 1.81N / mm 1.32N / mm bending strength (normal) 210.3MPa 192.8MPa 185.9MPa glass transition temperature of 135.3 / 137.4 ℃ 131.8 / 132.4 ℃ 127.5 / 128.2 ℃ thermal coefficient of expansion (Z direction , T260) 229um / m. ℃ 253um / m. ℃ 247um / m. ℃ dielectric constant (1MHZ) 4.13 4.40 4.54 dielectric loss tangent (1MHZ) 0.0212 0.0225 0.0205 Alkali OK Aedes 0K glue rotational viscosity (20 ℃) 880 1340 1080 6.5 3 Mohs hardness? decomposition temperature 870/1470/1723 230/300/530 350