tdragger1966
Member
Hey everyone, I'm about to embark on the fuel tanks for my RV-10 and have decided to fit them with the Van's "plate-style" capacitive sensors based on their RV-9 design. The plans call for the plates to be electrically insulated using polypropylene tubing and UHMW (polyethylene) washers. I'm having trouble sourcing the PP tubing while PE tubing seems easy to find. From what I've read, PP is more resistant to organic solvents while PE seems to be a better electrical insulator. My question is--given I do not want to crack open the tank in the future if I can avoid it--can I substitute PE tubing for the PP tubing without it degrading? If so, why would Van's plans call for PP vs. PE? Finally, am I overthinking this?