POTABLE watertank paint

[maltaboy]

could anyone advise me on which paint to use on my potable watertank (GRP),thanks

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[HeadMistress]

If you're referring to the inside of it, I wouldn't use paint. Eventually it will become degraded by water and start to flake off....and that can lead to big problems. There are non-toxic epoxy (or epoxy-like) products intended for use to seal the inside of fiberglass water tanks. With a bit of research, you should be able to find one and learn how to apply it. Gelcoat is another option, though not as good.

<hr width=100% size=1>Peggie Hall
Specializing in marine sanitation since 1987

 

[LadyInBed]

I would have thought a two part epoxy would be the thing to go for, but how are you going to apply it to the inside of a tank? I assume you want it for the inside, if it’s the outside - same answer as above.

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[ongolo]

One gets two part water based epoxy that I have very good results with, no matter what I do and use it for. it has no solvent of any sort and would not be toxic or leave any taste when cured.

Dont know whether it is available in your part of the world, it was developed here as a pool paint to replace chlorinated rubber.

Its nice, you just wash the brush with water when you finished.

regards ongolo

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[AndrewB]

There is a standard, quite cheap potable water-tank paint available from a range of makers, such as <A target="_blank" HREF=http://www.boatpaint.co.uk/acatalog/Boat_Paint_Catalogue_International___Deck__Bilge_Paint_and_other_paint__58.html>International Intertuf</A>. It is black, which helps eliminate light and thus algae, and slightly tarry in consistency. It needs several thin coats and about a month to dry otherwise water will at first taste a little tarry.

I've used it for many years with no problems, adding a coat every three years or so. This is with steel tanks, where it has the added advantage of being mildly corrosion resistant. I know no reason why it shouldn't be used with GRP, but cannot see any obvious benefit either.

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[richardandtracy]

Can usually get this type of stuff from builders merchants as Bitumen Water Tank paint.

Regards

Richard.


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[Maurice55]

Ask Marine and Industrial Sealants( 01692 406822) they do a paint called Sikagard 62 I think, which is made for potable water tanks.
Regards.
Maurice.

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[maltaboy]

Many thanks for all your replies.

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