The best approach is mechanical removal, washing with heavy-duty detergent in warm water, and multiple rinse cycles to flush out particles from the fabric. Avoid using bleach or fabric softeners as they can worsen the problem. On a square tail longboard I recently glassed the corners of the tail had a spot where the glass didn't meet up, so I had to fill the voids with resin. I also have tough times with round-pin tails and longboard noses where I can't get the glass to wrap tightly to the corner and then when I sand the. Occasionally we receive calls from people who want to remove fiberglass cloth from wooden structures. The fiberglass on the bottom of a stripper canoe has worn out or the fiberglass and polyester on the deck of an older wooden sailboat has delaminated. In this case what we are talking about isn't even a whole object, it's just small fragments. Fiberglass is a versatile material that is commonly used in a variety of applications, from insulation to boat building. However, its very nature – those tiny, sharp glass fibers – makes it an irritant and a potential.
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