HJSIL Fumed Silica R620

Hydrophobic Fumed Silica R620 Description: HJSIL R620 is a hydrophobic fumed silica after-treated with Hexamethyldisilazane (HMDS). Besides fumed silica, in this application the Precipitated Silica and Silicates, Hydrophilic fumed silica are also possible options. Applications: Coatings and Paints HTV Silicone Rubber  Liquid Silicone Rubber (LSR)  Rubbers and Plastics Powder Coatings Product features: Hydrophobic Reinforcing agent for silicone rubber to prevent structuring Excellent anti-sag performance Stable thixotropy, anti-settling, anti-sag in coatings, inks Improved high free flow and anti-caking of powder coatings Physical and chemical data: Properties and test methods Unit Typical Value Standardization Specific surface area (BET) m2/g 180 ± 25 GB/T 20020 pH v…