November 3, 200619 yr There are a couple of products designed to stop petrol tanks from leaking. You know the sort ...you pour it in and swill it around and bingo ...you hope. Fiber glass resin is supposed to be petrol resistant , so whats the harm in using this instead ?? Any views ?
November 6, 200619 yr Fibreglass (polyester) resin is resistant to the petrol that was around in the 1970s. Some modern petrol intended for use in cars contains ethanol which can damage fibreglass resin. There are a few proprietary products for lining fuel tanks some of which are intended for lining rusty steel tanks rather than fibreglass tanks. Take care to choose the correct product. I recently used brushing grade epoxy resin (from a ships chandlers) as a tank liner for a Sherpa fibreglass tank and it worked very well.
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