I got this because I needed something to hold up in outside weather conditions for some electrical wire connections for some things I am connecting outside the house. This tape works well holding up to the heat and rain that it is exposed to daily. It is suppose to handle temperatures up to 221 degrees and hopefully it won't get tested to that degree outside. This is very easy to use and easy to apply and reapply. So far, no moisture and protects my wiring very well. I got this for around 4 dollars.