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George Patterson wrote: Stubby wrote: Interesting because balloon envelopes are typically guaranteed for only 500 hrs. Sun and heat cause them to become porous and a yearly annual inspection will eventually declare your envelope unfit. Perhaps the heat reduces the life of the fabric? George Patterson Give a person a fish and you feed him for a day; teach a person to use the Internet and he won't bother you for weeks. Dacron and Stitts polyfiber are both polyester. Although plastic formulations can differ in the filler and plasticizer, the main differance would have to be the weave, fiber size, and fiber density. I suspect ballons have a short life span because they must hold hot air, and the fabric is unpainted. |
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