William R. Dahlgren

Tygavac Advanced Materials Ltd. manufactures vacuum bagging and composite tooling materials for autoclave, resin infusion, and wet lay-up processes. It offers nylon films, rubbers, release films, peel plies, resin flow mesh, breathers, sealant tapes, vacuum connections, tooling resins, and prepregs. It also provides custom products and kitting, training, and technical support services. The company was founded in 1981 and is headquartered in Chadderton, the United Kingdom.

Airtech International, Inc. manufactures nylon film, vacuum bagging rubber, infusion mesh, peel ply, release film, breather, sealant tape, and all vacuum connections. Its services include custom products and kitting, training, and technical support. The firm's product line include vacuum bagging films, pressure sensitive tapes, release liquids, vacuum bag connectors and hoses, pressure pads, cutting tools, vacuum leak detectors, shrink tape, PTFE coated fiberglass, tooling prepregs and resins, and carbon and glass reinforcements. The company was founded by William G. Dahlgren in 1973 and is headquartered in Huntington Beach, CA.