HOW USE FIBERGLASS & PLASTIC TO CREATE POLYESTER LAMINATE 1960s EDUCATIONAL FILM 66134

This 1960s Moreland-Latchford production is a short “how-to” film on using fiberglass and plastic to create a laminate as well as a quick look at how to repair a plastic product using fiberglass. Viewers see a pile of fiberglass fibers on a table and then products made from reinforced plastic. A man pours a polyester resin into a cup (00:56), then adds a few drops of a chemical hardener called the catalyst. The man pours the hardened resin onto a sheet of cellophane and adds pieces of string to reinforce the plastic (01:34). There is a close-up shot of fiberglass strands (02:09), which are the best product to use for reinforced plastic. The man pours more hardened resin on cellophane (02:35); then he places a fiberglass cloth on it and adds more resin on top. The film shows a variety of products made from fiberglass and laminating (03:05). Using a plywood mold, the man mixes polyester resin and hardener together, then pours the mixture onto the mold. He sands the plastic on the wood (04:00), then buffs the plastic on the wood. Next, he brushes on a water-soluble release agent. He shows the completed mold. Next, the film shows how to make a laminate with color using a piece of fabric. The film shows all the supplies laid out on the work table beforehand (06:27). The man demonstrates this with the same process as before. After mixing the resin and catalyst, the man pours the resin onto the plywood mold, adds fiberglass, more resin, and then places the piece of fabric on the mold face-down. This is covered with more resin; a fiberglass cloth is added next for a smooth backing (08:35). The man takes the mold off the plastic and trims the edges of the laminate (09:20); he files the edges with a plane, then he uses abrasive paper to sand the edges. The man uses a fine band saw to cut the laminate then buffs the piece on the buffing wheel. Viewers see the completed laminate (11:09). Next, the film covers the steps to repair a piece of reinforced plastic—in this case a helmet (11:20). The man uses a power sander to prepare the area around the hole on the helmet. He tapes cardboard behind the hole. Using the hardened resin, he applies it to a fiberglass matting, which is applied over the hole on the helmet. He paints the area with more resin, concluding the process.

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