Captain Tolley's Creeping Crack Cure

An extremely flexible polymer-based treatment for leaks from hairline cracks in all boat-building materials. Particularly effective for mystery leaks around windows, hatches, decks and for sealing around deck fastenings, sheet winches, stanchions and chain-plates etc... without dismantling.
Can be used on GRP, wood, rubber, steel, aluminium, glass, PMMA, polycarbonate, and concrete. Also safe to use on polystyrene.
Its principle feature is that being thinner than water, it finds its way inside the crack by capillary action and there sets to form a clear permanent seal.
2oz Bottle