Bill, The glass fiber in fiber glass is totally immune to any chemical attack from anything that might be contained in any gasoline, and is also oblivious to ultraviolet light from the sun. The resin is another story. Epoxy resin is subject to UV attack. Vinyl Ester resin is also subject to UV attack. That is why we hide them from the sun with primer paint that has UV protection. 100 LL aviation gasoline works fine with epoxy resin fabricated tanks. Automotive fuels will contain alcohol, oxiginators, propane and other additives. These will attack epoxy resins. Vinyl ester resin is immune to the additives in automotive gasoline. For that reason fiber glass fuel tanks should be fabricated using vinyl ester resins. Sid Wood, KR-2 N6242 Mechanicsville, MD USA sidney.w...@titan.com
Is there any evidence that motor gas will affect the fibre-glass fuel tanks in our KR's? I have a continental and have always used avgas, but with the increasing costs i am considering mogas. William J.G. (Bill) Crawford Senior Research Consultant Research in Building Science CMHC, Ontario 416-218-3342 Toronto 519-873-2422 London _______________________________________
