Air-Dock boat lifts are constructed of a very tough Elvaloy, PVC, and Urethane blend. This material is used primarily for industrial applications such as membrane roofs, pond liners, oil spill booms, truck tarps, and some inflatable boats. This material is known to last over 30 years on membrane roofs exposed to UV light. The material is patchable and all Air-Docks come with a patch kit.
Air-Dock's inflatable air chambers are constructed with techniques developed over fifty years on military boats and life saving devises.
Military proven field applications have provided invaluable data from products designed and used under the most adverse conditions. The Air-Dock boat lift requires much less pressure, however, than inflatable boats and is used under less stressful conditions. By comparison, the Air-Dock boat lift requires approximately 1/2 pounds per square inch while a typical inflatable boat requires 2 to 4 pounds per square inch.
Inflatable air chambers inherently have tremendous lifting power. Air-chambers like these are also used to lift commercial airliners for maintenance and repair.
Air-Dock's inflatable air chambers utilize the latest materials and construction techniques. They are constructed from a Coast Guard approved Elvaloy® coated/polyester reinforced fabric. This fabric is chosen for it's high tear strength and puncture and abrasion resistance. All air-retaining seams are constructed with advanced high-frequency sealing techniques. Each one meticulously assembled, inspected and tested to meet or surpass military standards, including MIL-I-45208A.
The Air-Dock material has a polyester fabric base which gives it a tensile strength of 400 pounds per lineal inch. This strength makes it highly resistant to punctures and tears.
When it comes to inflatable boats, most are constructed of vinyl (PVC) or Hypolon®. Vinyl boats are much less expensive but do not hold up well to sunlight. Hypolon® boats have been known to last twenty years or more with exposure to sunlight. The Elvaloy® material has been tested in an accelerated weather chamber and has shown to be even more resistant to sunlight than Hypolon®. It has also been proven to be more abrasion resistant than vinyl or Hypolon®.
Elvaloy has been used for many years as membrane roofs on buildings, chemical tank covers, pond liners, oil spill containment booms, and more recently inflatable boats.