Hi dale, for sure ,if it works it works ! The stuff I use is a different brand name over here, but when I done some research it appears to be much the same product, I could definitely be wrong though ! It definitely seals out water and it is handily quick to use and dry. Like mark noticed, when coated with e-tex and heat gun used for busting bubbles, air from inside the blank can force itself out through the hardener causing a stream of tiny bubbles in the e-tex occasionally. Like I said, maybe the stuff you're using is different , if it works it works!...glider