Fuel Proofing Firewall
over here nitro is easy to find, my favorite hobby shop sells it for about $15 a liter. seems like you guys wouldn't have a problem finding it over there.
in my work i use lots of aerospace quality epoxies that are very thin, uv resistant and great for fuel proofing. a lot of the overpriced epoxies sold in hobby shops are garbage and really don't hold up like the quality stuff
dave