Reddit reviews Butyl Putty Tape Window Flange Tape Camper RV Roof and Window Sealant RV Putty Tape (1/8" x 1" x 30')
We found 1 Reddit comments about Butyl Putty Tape Window Flange Tape Camper RV Roof and Window Sealant RV Putty Tape (1/8" x 1" x 30'). Here are the top ones, ranked by their Reddit score.
PUTTY TAPE - Molds to the shape you need.WATERPROOF - Perfect for waterproofing RVs, trailers, motorhomes, boats, etc.SEALING - Non-hardening with excellent sealing properties, increases in adhesion with age.DIMENSIONS - 1/8 inch x 1 inch x 30 feet.COLOR - Off-white.
I wouldn't rely on that tape for long. The correct installation would use butyl tape between the fan and the van, covered with lap sealant. Even the lap sealant will need attention every 5 years or so.
https://www.amazon.com/Butyl-Window-Flange-Camper-Sealant/dp/B0070O93HA
https://www.amazon.com/Dicor-551LSW1-White-Non-Sag-Sealant/dp/B003YJLIW8/ref=sr_1_7?crid=Z841JSP22XJJ&keywords=dicor+self+leveling+lap+sealant&qid=1570568299&sprefix=dicor%2Caps%2C234&sr=8-7
RV stores usually sell this for less $ than Amazon.