Recently, I repaired a long crack, but when I removed my curing light, there were three spots where the resin did not cure. What could possibly cause that?

Below I detailed the type of damage I was repairing and the process I used to repair it. Spoiler alert: You can skip to the last few paragraphs of this article for an answer to the above question and a few additional tips for repairing long cracks.

Last weekend I had to repair a 12” crack that started under the molding at the edge of the glass. There was no visible impact point that I could detect, so I assumed it was a stress crack. Some technicians don’t repair edge cracks or stress cracks, but I’ve had pretty good luck repairing them over the years, so I don’t shy away from them. Read More