[turbo69bird]

Idk the part you’re taking about specifically or it’s material. But many times I can repair items that are flexible with marine 4200 which has some flex . Harder pieces can be effectively willed with marine 5200 which hardens like a rock
Take a
Look at those tow products see you you think it will work .

For actual Fiverglass repair there are products like kitty hair which is a fiberglass filler in the consistency of bindo (except it’s water proof) with strands in it larger strands are called tiger hair. These work well, I’ve repaired boat jetski hulls with this product rather than standard cloth and resin.