Hi there

I'm relatively new to using composites and not familiar with the different types of resins available. I am looking to make fiber glass petrol tanks for competition motorcycles. There are a lot of people already using these on the Pre65 Trials circuit but in the last few years a lot of them have started to delaminate and bubble. Additionally the resin has been clogging up the carburettors. This is attributed to the Ethanol in modern fuels.

Is there a resin available that is resistant to ethanol even at the quantities used in E85 which has yet to reach our shores.

Many thanks

Steve

I am using an ethanol resistant resin to both seal the inside of the pre-preg tank and initially I have made the first few bases using the resin. Not done any long term tests but the supplier does supply it knowing it is used in an environment where it is subjected to ethanol continually. 

The slight down side to the resin if used to actually make the parts is the part is quite flexible. Used as a sealer this is fine. used in the tank base again not too much of a problem as the rest of the fuel tank is pre-preg and if the base has a little flex it is not a problem. 

I forget what it is called... Need to get more sleep and sniff less cleaning products I guess.. But the supplier is Alchemie. The down side if you buy a small quantity is postage as it is £20 I think even if you only have 1 kg.... I am not too far away so drive over to collect it...