It's a common solution to the slippery pad problem. I'm not sure how long it would last. That just "depends" I guess. I have a tarp with seams sealed using the homemade solution. They seem to be fine, and the tarp is several year old. But... I haven't done that to a sleeping pad, I imagine your mileage might vary since you are laying on it and scooting around a little. Maybe others can address this question.