This glue passed the sweat test with flying colors! I work out several days a week, and nothing is more frustrating than trying to do the right thing to be healthy and fit, but your unit that you spent a lot of time slaying, lifts due to sweat! After several rigorous workouts, I had ZERO lift with Grenade Glue (I used 3 layers). Once I was ready to remove my unit, it came off effortlessly using the Remover. Next test - being submerged in the beaches of Florida! Great job on this one!!