Why Does Fumed Silica Sometimes Reduce Transparency in Silicone Rubber? A customer may start with a transparent silicone polymer, add fumed silica for reinforcement, and then notice: “W......
2026-09-14Why Does a Silicone Compound Become Too Thick After Adding Fumed Silica? A common formulation problem is: “We added fumed silica for reinforcement, but the compound became too thick to ......
2026-09-12Why Can Fumed Silica Be Difficult to Disperse, and What Should You Check First? A common question from formulators is: “Why is this fumed silica so difficult to disperse?” It is t......
2026-09-12Why Can Fumed Silica Improve Anti-Sagging but Make a Sealant Harder to Extrude? A common formulation challenge in sealants is: “The sealant no longer sags, but now it is too difficult t......
2026-09-12When Should Hydrophilic or Hydrophobic Fumed Silica Be Considered in Silicone Formulations? When selecting fumed silica for a silicone formulation, one of the first decisions is whether to ev......
2026-09-10What Information Should You Provide When Requesting Hydrophobic Fumed Silica? A common purchasing request is simply: “We need hydrophobic fumed silica. Which grade do you recommend?” ......
2026-09-09How Can You Qualify a New Hydrophobic Fumed Silica Supplier Without Changing Your Formulation? When a silicone rubber or sealant manufacturer considers a new hydrophobic fumed silica supplier......
2026-09-08Why Is “BET 200 m²/g” Not Enough When Asking for Fumed Silica? When customers ask for fumed silica, one of the most common descriptions is: “I need 200 m²/g fumed silica.” ......
2026-09-07Why Can Two Fumed Silica Grades with Similar BET Produce Different Rheology? Article When selecting fumed silica for a formulation, BET surface area is often one of the first specificat......
2026-09-04Why Does Surface Treatment Matter When Selecting Fumed Silica for Sealants? When selecting fumed silica for a sealant or adhesive, BET surface area is not the only important parameter. ......
2026-09-03Does More Fumed Silica Always Provide Better Thickening and Reinforcement? Not necessarily. Fumed silica can provide thickening, thixotropy, reinforcement, and anti-settling performance......
2026-09-02Why Can Two Fumed Silica Products with the Same 200 m²/g BET Perform Differently? Two fumed silica products may both have a BET specific surface area of around 200 m²/g, but they do not neces......
2026-09-01Which COA Parameters Matter Most When Purchasing Fumed Silica? When purchasing fumed silica, checking only the silica content or BET surface area is not enough. For silicone rubber, sea......
2026-09-01Unreinforced silicone rubber molecules have a linear structure with extremely weak intermolecular forces, resulting in a tensile strength of only about 0.3 MPa, making it practically useless. The addi......
2026-08-31In industrial formulations, the selection of hydrophilic versus hydrophobic silica is not simply a matter of superiority or inferiority, but rather depends on the precise matching of "system polarity"......
2026-08-31
