You won't believe how painless it makes cleaning those nasty yellow/brown waterline stains. How it makes rust stains disappear from fittings, and how simple it is to restore your gelcoat by removing discolouration. You paint on, leave for half an hour then wash off. You will even have time for a cuppa or a pint!
Grunt! boat cleaner is like magic. It neutralises and absorbs the stain. It penetrates into the pores of the gelcoat. Using a chemical reaction it neutralises and absorbs the staining. This process is a gentle one and does not affect the gelcoat in any way. The stain is effortlessly washed off with a sponge and water.
To use Grunt! boat cleaner:
- Apply to the stained area with a paintbrush.
- No mixing or measuring needed.
- Wait 20 to 30 minutes, or longer in colder weather, while Grunt does the hard work.
- Rinse off the area with a sponge and freshwater - It really is that simple!!!
Grunt! works on most two-part marine paint systems and yacht enamels used on steel or timber boats. Designed for fibreglass boats but it has so proven to be useful in many other applications.
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