MG Duff’s Zinguardis a one-component cold-applied zinc coating which contains a minimum of 96% pure zinc when dry. Features Safe and easy to use Non-toxic and is certified for use with potable water Suitable for repairing worn or damaged galvanising on boat trailers, anchors, chains, keels and underwater fittings How it works Creates an active anodic zinc layer that provides cathodic protection to submerged metal, and a passive zinc coating that resists corrosion above water. Allows subsequent touch-up as it thoroughly mixes with previously applied Zinguard coats Hardens on metal surfaces and it’ excellent flexibility and adhesion prevents peeling off, with exceptional resistance to mechanical shocks, abrasion and erosion