YKK SNAD 40mm Adhesive Backed Domed Stud - No tool, no wait, no splits, no hole!Unlike traditional metal screw studs used for marine applications, these 3M adhesive backed fasteners will not snag clothing or deteriorate from exposure to sunlight, sand and dirt.
Ideal application temperature is 70-100 degrees F. Application of adhesive backed components to surfaces below 50 F is not recommended. Once applied, low temperature holding will be ok.
From the YKK website:
Unlike traditional metal trims, SNAD® is a plastic adhesive snap component. This product will not snag clothing or deteriorate from exposure to sunlight, sand, or dirt. Plus, walking on SNAD® is pain free due to its unique dome shape. Installation is simple, clean the surface where the snap is to be applied, peel off the protective paper backing, position and firmly hold the snap in place and release. No tools, no waiting, no splits, no holes!
Snap components will adhere to most clean, dry and well-unified surfaces. Typical surface cleaning solvents are a 50/50 Isopropyl Alcohol (rubbing alcohol) water mixture.
After application, the bond strength increases and approaches the ultimate bond strength after 72 hours at 70°F (21°C). Typical bond strength build-up: 20 minutes equals 50% bond strength, one hour equals 75% bond strength, one day equals 90% bond strength, and three days equals 100% bond strength.