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This sulfuric acid blend is a heavy hitter for removing stubborn stains on gel coat. It removes nasty yellow water lines, fish guts and blood, it also makes quick and easy work of removing rust on your vessels stainless steel jewelry.

You dilute 50/50 with water and just spray onto surface to be cleaned. You can also use on bare metals to prep for polishing, but DO NOT apply to galvanized or bare aluminum trailers as it will discolor them.

Use a respirator, eye wear, and rubber gloves when using this product.

Hull Brightener also works great and makes easy work of stubborn caked on brake dust. We recommend only using this product on older wheels with heavy build up. Do not use on fancy aftermarket wheels.

Additional information


16 fl oz, 128 fl oz


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