Chop (fiberglass)
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For other uses, see chop.
A chop is a form of fiberglass consisting of short 6-8 inch lengths of glass that is shot out of a pneumatic gun with resin in to a mold. This method is used often when one side of the finished product is not seen, or when large quantities of a product must be made cheaply and quickly without regards to strength. Corvette fenders and boat dinghies are commonly manufactured this way.