I need to make a fuel tank /pump gasket. I want to use some sheet Nitrile Cork gasket like Nitrile Cork Gasket Material (3mm x 1m x 1m) | eBay

I can swallow the cost of item but the postage is silly... does anyone know of an alternative supplier?

do you need 1m x 1m?

if not then eBay - The UK's Online Marketplace

Gasket Material/Paper Starter Pack (assorted sheets) | eBay

spot on... I dont know how I missed those