An advanced TekTuff SPA polyethylene (PE) lets Heritage Kayaks, Bristol, R.I., not only slim down its rotationally molded Featherlite kayaks without loss of structural toughness but also permits molding more boats per shift. Rotational-molding operators at Heritage Kayaks remove a onepiece seamless hull-anddeck kayak produced from Teknor Color Co.'s TekTuff SPA polyethylene compound. A mold on a rotational-molding machine is filled with a yellow formulation of TekTuff SPA PE. The new rotational-molding compound lets Heritage Kayaks reduce the overall molding cycle by roughly 10%. An advanced TekTuff SPA polyethylene (PE) lets Bristol, R.I., not only slim down its rotationally molded Featherlite kayaks without loss of structural toughness but also permits molding more boats per shift. TekTuff SPA PE rotational-molding compound replaces conventional metallocene-based medium-density PEs. It is said to provide the same resin-saving economies as standard TekTuff PEs but requires an average of 12.5% less oven time to melt, fuse, and develop optimum physical properties in the mold. The SPA PE also sports a broader processing window, so there's greater latitude in molding conditions. This translates into fewer rejects without compromising the polymer's property development, reports Heritage kayaks. Pawtucket, R.I., reportedly yields parts that are substantially stronger and stiffer than parts of similar thickness rotationally molded from conventional, medium-density PEs. This lets molders reduce part weight by 10 to 15%, says Teknor senior technical service engineer Gretchen Leighliter. Standard TekTuff compounds process similarly to conventional medium-density PEs, says Leighliter. "But the 12.5% shorter oven time gleaned with the new SPA version drops overall molding cycles by roughly 10%. In addition, the SPA version is more forgiving than standard TekTuff compounds, so it's easier for molders to get target physical properties." Heritage Kayaks rotomolds seamless hull-and-deck boats that weigh 37 to 73 lb (17 to 33 kg). "Because TekTuff SPA is so
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Plastic Molding Services
Plastic molding services use a number of different molding techniques to produce components, including thermoplastic and thermoset injection molding, blow molding (includes injection blow molding), rotational molding, thermoforming, structural foam molding, compression molding, resin transfer molding (RTM), and others.
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Plastic plate, rod and stock shapes include shaped plastic parts and plastic stock. They are fabricated through various processes and available in many different forms and sizes.
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Diesel fuel tanks are created utilizing cross linked high density polyethylene. They are used in a variety of applications such as construction equipment, tractors, commercial vehicles, generators,...
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Gemstar Manufacturing has been making custom cases for over 40 years. Through injection molding, rotational molding, and thermoforming custom cases, you have many options in selecting the right...
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Product and Tool Design
Control Plastics leads the industry in custom injection molding services, die casting and sheet metal fabricating, but that's just the beginning.
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Topics of Interest
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