FAQ: Prepare Substrate Surfaces

Most substrate surfaces should be cleaned using the recommended two-cloth solvent cleaning method to ensure a clean, oil-free, dry surface is obtained. For difficult-to-stick-to surfaces, the adhesion can be improved using a primer (i.e., DOWSIL™ PR-1200 RTV Prime Coat as well as the other DOWSIL™ primers). Some surfaces may require abrasion to remove imbedded dirt but be careful not to damage the surface. Check with the substrate supplier.

Please note that because conditions and adhesion methods of use of our products are beyond our control, this information should not be used in substitution for customer tests to ensure that the products are safe, effective and fully satisfactory for the intended end-use.