Profile: Kamweld Technologies, Inc. offers plastic welding products, industrial hot air guns, plastic sheet bending devices and accessories. Our Model 41-HT used for tack welding or hand welding with round tips at speeds of approximately 12 inches per minute. Our hot air guns are used for special applications such as flash burring, flameless hot air up to 1050°F, curing laminates, bonding, curing and sealing plastic coatings. Our model 44-AW is used in any type of welding ranging from tack welding to high-speed welding.