I'm trying to find a source for heat-shrink polyester film - I have feelers out to one company right now. I don't see why the texture would be terribly problematic - it might be different but that doesn't necessarily mean bad. The boat wrap I have seen has a woven texture like tarps. Boat Shrink Wrap is applied by draping the sheet over the boat and by applying heat with a hand held propane powered heat gun. Shrink wrap tape is available for seaming sheeting together. It also has EVA (Ethyl Vinyl Acetate) added to the film to keep the polyethylene soft and flexible in sub-freezing temperatures. All films have UVI protection (ultraviolet inhibitor) to prevent the polyethylene from breaking down from exposure to ultraviolet rays. Other applications would be any large item that would be exposed to the weather in warm or cold conditions. This film is commonly used to shrink wrap boats during the winter in cold weather areas. This film is a heavy duty shrink polyethylene available stock in BLUE, WHITE, or CLEAR in 6 MIL and 7 MIL, from 12 feet wide to 36 feet wide. How many times do you think "Cheese Balls" has ever been typed into the banjo hangout search function? I'm sure jonnycakewhite or Mike will pipe in here. Wish I could remember who, but a Google search should be able to find them. I researched it a bit at one time and found a commercial supplier of extra-thick film that was of the heat shrinkable variety, so it's out there. I believe Mike or someone else participating in that thread has posted about finding the material available in a larger sized container, perhaps the Monday Night Football sized container of "Cheese Doodles" as I seem to remember. Check out this post for a heat-shrinkable alternative. If someone could come up with a good looking synthetic head material (like Mark Ralston's Yellowstone material) that was also heat shrinkable the tack head builders would be all over it like ticks on a field dog.
meaning that while it is incredibly tear resistant along a smooth edge, if a tiny knick or notch occurs a tear can be propagated from that notch very easily.Įdited by - championofnorthhuron on 16:23:50Ĭhampionofnorthhuron, GREAT post! I'd like to see more replies like yours which are well thought out and informative.Ĭhancy, You're looking for the holy grail. But it would have to be reinforced by fibers (perhaps like a fiberskyn? I'm not really familiar with how the fibers are incorporated into a fiberskyn), grommets, or other I would think. By the time you do heat it enough to cause it to shrink it will also distort unfavorably and loose its favorable strength properties. If you were to heat it to +300 degrees F you'd probably damage the gourd I would think, and the polyester would still not shrink. typically on the order of 300+ degrees F. I can also tell you though from my graphics experience with BoPET that it is known and utilized for its high heat performance. Some of the features of polyester (as we all know from banjo heads) is its incredible strength, ability to resist stretching, and dimensional stability. I work with polyester quite a bit in the graphics industry, not only thin (0.001"-0.002") pressure sensitive adhesive decal film polyesters but also 0.005", 0.007", and 0.010" thick polyester tag stock these latter very similar to the polyester used for banjo heads. Mylar is actually one of the trade names for biaxially oriented polyester film (BoPET). unless it's a mylar/polyester specifically engineered to shrink, no. If I'm interpreting your question correctly, you're simply asking if mylar heads will react to heat by shrinking like some plastics will. Championofnorthhuron - Posted - : 16:13:10
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