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Old 10-09-2006 | 08:06 PM
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Chip_Mull
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From: Granbury, TX
Default RE: finishing with Koverall or equivelant

Go to http://www.stits.com and compare the process. They are similar but the buck stops there. The Stits Lite fabric has a tighter weave and shrinks tighter, all the paints chemically bond to each other, and the process is lighter than dope.

In answer to your questions "on a fully sheeted fuse do I have to glass it or can I directly paint the fuse to sane weight": It's entirely possible to directly paint the fuse but I don't think you would like it in the long run. If you use the 3/4 oz cloth and epoxy, it will resist hangar rash and dints and dings better. We have a process where you only apply the 3/4 ounce cloth with the epoxy and then use FC-900 to fill the weave. Normally you would apply the second coat of resin which does nothing but fill the weave and add weight. The Feathercoat is solvent based and saves weight and is a "Bridge" between the fiberglass and our paints.

Also,"with the open parts of the wing will the koverall shrink on these areas": YES, any polyester shrinks with heat and will shrink over the open areas. Koverall and Stits Lite shrink with heat but.... dope continues to shrink during its entire life. This is why some planes experience dope cracking or coming off later. It doesn't chemically bond with the fabric. Apply nitrate dope first and then butyrate. Again, trying to obtain the chemical bond.

There are Q&As on the web site that address the Stits Lite method and free info is available. Hope this helps and feel free to call, e-mail or write for further info.