Full Corrosion Protection without Punctures or Tears |
AA Thread's 10 MIL CLHDPE Joint Wrap exceeds the specifications of ANSI/AWWA C105/A21.5. The material is made from 100% virgin high density polyethylene resins and is 2 ½ times thicker that the industry standard 4 MIL CLHDPE. It exceeds the spec for elongation by 700%, and also the impact resistance spec by 200 grams. In addition, it exceeds the company's 4 MIL CLHDPE material in propagation puncture and tear resistance by over 5,000 grams.
CLHDPE material is unusual because the film is not blown into a tube as is the practice for standard 8 MIL LLDPE. This film is extruded from high density polyethylene resins, molecularly orientated through a stretching process, and then two single ply layers are laminated to each other in a bi-directional fashion. The grain orientation of each layer is run at 90 degrees of each other, which produces a high strength material. All CLHDPE material is basically made in the same manner up to this point. AA Thread's wrap undergoes an additional step. The material is finished through a heated ribbing process which creates a virtual third layer of strength. It also makes the product visually different, as it is the only wrap that has these unique ribs.
"We wanted to develop a product that is both unique and highly effective," said Bill Jones, Vice President of AA Thread Seal Tape and the brains behind the product. "We worked closely with our manufacturer to develop a material that would be the strongest available in the market and also easy to use."
The wrap is available in 20-inch and 30-inch-wide rolls that can be used to spiral wrap the joint in the field. They company also offers pre-manufactured tubes that can be slipped over the joint. The tubes are available for joints ranging from 6 inch to 24 inch in diameter.
AA Thread Seal Tape Inc. was founded in 1979 in Barrington, IL. For more information on the company's new 10 MIL CLHDPE Joint wrap or any of its other products, visit www.aathread.com. WW
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