Stans NoTubes Rim Tape is air tight and non-porous, super thin and will not affect tyre fit, and does not leave a messy residue when it needs to be replaced.When running less than 45psi a single wrap of tape is necessary, when running greater than 45psi a double wrap of tape is required.Please note: Stan’s Rim Tape by itself is not a tubeless conversion. Traditional (Non-BST) rims require the use of Stan’s NoTubes rim strip to achieve a secure tubeless setup. Using only Yellow Rim Tape and Stan’s NoTubes sealant on a conventional rim can result in difficult inflation and catastrophic “burping” issues.