There are some advantages to this and some disadvantages.Īdvantages include: There is one more layer of material to rupture, and this may add a slight amount of security to the owner. Many manufacturers are using unsupported fabrics as a bladder inside of a coated fabric. What are the advantages and disadvantages?
PVC inflatable boats are now available with or without bladders. There is simply less surface area for the water to act upon, so the boat punches through easier. AIRE calls it the awesome hole punching power of the single tube design. Even the guys at AIRE will agree, and they put it in their brochure. The amount of surface area on the water also has an effect on the ability of a Cat to punch through a reversal. He informed me that he had no problem doing this, but I am sure that his skills were challenged at this point. It deflated very fast, and he had to make it out to shore in Class 4 whitewater. The motor mount on the back put a good size hole in the top of the first Cat. It must have been a good hole, because his buddy did not see him in there, and came down right on top of him. The first one was surfing in a reversal on purpose and having fun. There is a story about two customers who were boating the Crystal River in Colorado. Actually when properly inflated, the cone shaped baffle in out cat tubes, moves part way into the deflated section, and it is only like loosing a third of a tube, even though the rest of the tub is rather soggy, it can be safely rowed to shore. The single tube design will only loose one half. I even know of one instance where all four tubes were lost at the same time. When we have something real nasty in the river in class 4 or 5, It could put a hole in both tubes on a double tube design. I think that there is a safety advantage of the single tube design. The HS has an even greater tear and puncture strength than the string reinforced option.Which is safer, single tube design with baffles, or double tube design with tubes side by side? In addition, 100% of the surface area is protected by reinforcements made from strengthened polyethylene. And this crawl space liner is seamless with no welds or panels. This features gives the liner added strength. The High Strength SilverBack™ HS crawl space liner is designed with pure polyethylene ribbons that are cross-woven. This unique process makes this crawl space liner extremely tear resistant, waterproof, and incredibly dependable. This reinforcement layer gives the SilverBack™ a diamond shaped pattern. This reinforcement cord is molten in place with a layer of pure polyethylene. String Reinforced SilverBack™ SR crawl space liner is reinforced with a polyester cord. The SilverBack™ crawl space liner has a glossy white facing and a silver back. Both of these crawl space liners are offered in 12 Mil and 20 Mil thicknesses. Both are made with pure polyethylene and contain no unnecessary additives.
The SilverBack™ crawl space liner comes in two different forms, String Reinforced (SR) and High Strength (HS).
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