Open cell cork is “natural” cork,closed cell cork is a mixture of small pieces of natural cork mixed with rubber.If the rubber is ethanol resistant,then the cork should hold up in the gas.Tubs long running experiment will answer the question.
Open cell cork is “natural” cork,closed cell cork is a mixture of small pieces of natural cork mixed with rubber.If the rubber is ethanol resistant,then the cork should hold up in the gas.Tubs long running experiment will answer the question.
