What surface preparation is needed before using General Purpose Silicone?
Before applying Bostik General Purpose Silicone, make sure all surfaces are clean, dry and free from dust, grease, oil and other contaminants.
Removing dirt, residue and loose material helps the silicone adhere more effectively and can improve sealing performance. Preparing the surface properly is especially important when creating watertight seals around joints, gaps and household fixtures.