I'm a first time strip canoe builder and have been successful so far build a staplless canoe. But now, after all my work I've messed up on my epoxy. I'm using Raka non blush and wetted the wood before applying the glass. When I was wetting the glass the next day it was a little cooler than normal, high 60's in the shade. I think I applied the epoxy too thick and by the time I was done I realized I had significant runs. I didn't notice them until the sun got low enough to shine into my garage but Oh My God, it's not pretty. I waited another day, lightly sanded and added another coat to fill the weave and hoped that the runs would disappear. They haven't. Can I sand them out, scrape them? What's the best method and is this common?