CRL Gunther Seal-Kwik Mirror Edge Sealer is used to help prevent to onset of oxidation after machining has occurred
CRL Gunther Seal-Kwik has a safe, proven formula for protecting mirror edges from "black edge". Seal-Kwik goes on fast and easy with a sponge-dauber top, with no running, spilling or wasteful overspray.
Seal-Kwik dries clear, and will not yellow or crack with age. One four-ounce bottle will cover 20,000 linear inches of mirror edge.
Sealed container with dauber minimizes product evaporation and waste.