W9 Water Spot Remover is a concentrated formula which is 100% coating safe. Hard water spots and silica scale will disappear from the exterior surface with ease. The formula also works well on glass, where watermarks can be exceptionally hard to remove. Use W9 Water Spot Remover on ALL paint types, including matte finishes.
Unlike standard single mechanism water spot removers, W9 has a three mechanism approach to removal:
It dissolves and removes salts
It traps metal ions, which are commonly found in tap water
It removes silica scale which is traditionally very tough to remove
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