Back in 2016 member BlackTalonJHP sent me some side grip patches for my SD9. I just stuck them onto my gun without heating the grip and the patches afterwards. They stayed on for 4 years until just recently when they came off. I contacted BTJHP for another set and he sent them. This time I used a hair dryer to heat the grip and the patches afterwards.
Man, these textured patches sure do give me a better grip when shooting.
Thanks BlackTalonJHP.