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Closed Mold:
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Light RTM Light Resin Transfer Molding (LRTM) is a process by which composite products are manufactured using a closed mold system. The closed mold consists of an A-side mold (base mold) and a semi-rigid B-side mold (countermold) that is sealed to the A-side mold using vacuum pressure, and resin is drawn into the resulting cavity under vacuum. The resin infusion may be assisted by a resin injection pump, which will accelerate the infusion process. Once the resin is cured, the B-side mold is removed and the part is demolded from the A-side mold. LRTM is a very versatile manufacturing process with the following characteristics:
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