 tbran wrote:
We used fiberglass 'bondo' with no issues for decades. If you ever saw one burnt - it looks identical to fiberglass no matter what they called it. Just a caution if one ever cracks it must be reinforced somehow on the backside as well as the outside as the repair will crack again. |
Definitely will need reinforcement on the backside, and probably wise to drill out just past the end of any cracks to relieve stress & prevent the crack from progressing (same principle as brazing a crack in iron).
My preferred way is to scuff the coating off on the back to give a good key, lay a couple layers of glass & then before the resin cures add in a thin sheet of aluminum (old drinks can usually fine for smaller, sub-6" cracks, or thin gauge steel pop riveted in place to do up bigger damage) and then lay a few sheets of glass over the top of that to seal it all in.
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