>>>when I removed a new rubber gasket, I set it in a jar of gas, thinking to keep it from drying out and shrinking. It ended up swelling to almost twice its normal size!>>>
Silicone rubber swells bigtime with gasoline. Helps make the seal. Let it set out in the sun to evaporate the gasoline and it returns to normal size. Essentially the same silicone rubber as used on the color-coded rings on Target pill bottles. The large size Target pill rings fit and work perfectly to seal most glass gasoline bowls.
Jack E/NJ
