Alfagel 400
Alkali-resistant silicone-based preservative that penetrates well into the substrate (SILKO-approved 3.252). Prevents the capillary penetration of precipitation and splash water into the structure. Lets humidity escape as vapor from inside the structure. Reduces the risk of frost damage and the build-up of salt on the structure’s surface. Due to its paste-like consistency, the substance does not drip and can be spread as thick coats (in a single application) even on vertical surfaces and the bottom surfaces of bridge structures.