Stains on fiberglass seats

Deleted!
I didnt read the question properly 🙄
Varnish. I duuno!

Sorry


Mark

Magic eraser?


I hate using them because they are abrasive, but in this case, for a one time use...

If it’s anything like varnish on exterior, teak, it’ll peel off in no time!

caroldave73 said:

A can of Hellmans spar urethane leaked onto our boat seats. We have tried Klean Strip paint solvent, 100 acetone and a stripper. Did not move the stain. Any advice on how to clean this? View attachment 148551
[/QUOTEI’m not sure where you may get it, but I read that methylene chloride may do it

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Methylene chloride?

Indeed, is it remnant varnish? Or a stain left on after the varnish has been removed? i.e. the colour tint in the varnish.
If its just the stain then Muraic Acid could work too. Paint it on, leave for 30 seconds and use a lot of water to remove every trace. If it doesn't work try again for a little longer.

AWT2_Sail said:

Methylene chloride?

Click to expand...

Will remove the gelcoat.

I'd either ignor it or try a heat gun and a brass or stainless brush. The heat will soften the varnish before the gelcoat. Watch the heat and start in a corner (I have done this with epoxy drips--it worked better than anything else).

Also oven cleaner (caustic based paint stripper). Let it sit and then brass or stainless brush. Won't work in epoxy, but works on some paints.