Adhesion Promoter AC 40 Silicium organic compound Hanse Chemie Adhesion Promoters >> Silicone & Silicone-Modified Polymer Silicones (Si) SEALANT As a rule, silicone sealants should adhere well to most substrates without prior treatment (primers). On some surfaces such as glass, 1-part silicone sealants often adhere without further additives. However, to ensure universal applicability with good adhesion on a wide range of surface types, most silicone sealants include organofunctional silanes as adhesion promoters. Hanse chemie offers adhesion promoters for oxime as well as acetate sealants. For acetate sealants hanse chemie offers Adhesion Promoter AC 40. This ensures excellent adhesion even when high stresses are placed on silicone sealants, such as for use in aquariums Silicium organic compound. Used as adhesion promoter for acetate sealants. Ensures adhesion even when high stresses are placed on silicone sealants.