Gunther Seal-Kwik Mirror Edge Sealant
When soldering around a mirror, it's a good idea to protect the mirror from the flux, this is because flux is corrosive. Gunther Seal-Kwik has a safe, proven formula for protecting mirror edges from "black edge".
Unlike spray sealant, Seal-Kwik goes on fast and easy with a sponge-dauber top, with no running, spilling or wasteful overspray. Seal-Kwik dries clear. One 4oz bottle will cover 20,000 linear inches of mirror edge. Sealed container with dauber minimises product evaporation and waste.
We recommend using 3-4 coats on the back and sides of the mirror.