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  1. K

    PolyFiber minimums

    At about what temperature should I worry about burning on? For the flattening process, they recommend 200 to 225 F.
  2. K

    PolyFiber minimums

    Hmmm, I had the impression everything in the PolyFiber process dissolved in MEK. Good to learn it's not so, before getting in to trouble.
  3. K

    differences in Dacron

    Okay, I've located an older copy of the Oratex factory's manual, dated 2015. It says the glue layer will fail near 300 F. Dacron melts closer to 500 F. So, I'm not sure why BAF said it was unlikely to work. I'll look further. Thanks again. appended: Here's removal of Oratex with a heat gun...
  4. K

    differences in Dacron

    At OSH a few years back, I asked the North American distributor about removal. He told me the glue loosens only a few degrees before the dacron melts. To quote the manual I received at that time: If you've heard otherwise, please point me to it. Everything about Oratex sounds good except that...
  5. K

    PolyFiber minimums

    Thanks. The manual wasn't clear which to use. They did talk about ironing out runs and the like, so that would imply the small iron. In addition to the Practice Kit I'm buying, a friend at my EAA chapter has loaned me an old Sonerai rudder to practice on.
  6. K

    differences in Dacron

    It's an S-20. For now, we're covering only the fuselage. We have the metal wing kit, but that was a very early production wing kit and we may end up scrapping it (QC was abysmal). A possible problem with Oratex (and Hipec) is when it comes time to recover. The glue is permanent. You'll be...
  7. K

    PolyFiber minimums

    It's a technique given in the PolyFiber manual, and they list the temperature range to use. I'll give it a try with the Practice Kit. If it sticks, it should come off with MEK, of course.
  8. K

    Hipec with a roller

    To follow up on this thread: I did contact Hipec recently. This will be my first covering job. The glue for Hipec is permanent. Botch the fabric work, and it sounds as if you end up taking the tubing back down to bare metal. It's not like PolyTak which redissolves in MEK. I have to wonder what...
  9. K

    differences in Dacron

    I just came across this at Stewart's: I wonder if the weave affects the ability of PolyBrush to penetrate as intended? (Superflite is the less expensive fabric.)
  10. K

    PolyFiber minimums

    The PolyFiber book mentions 3 PolyTone colors can be used without PolySpray beneath, just a single layer of PolyBrush. All 3 are metallic, one blue and two silver. Are these difficult to spray evenly? I wrote to PolyFiber but they are mum. I also wonder how it would end up with no PolySpray to...
  11. K

    differences in Dacron

    (moved to separate thread)
  12. K

    differences in Dacron

    I'll try to cover the fuselage of my Rans starting next month and will need to buy fabric. Any significant difference among the brands, eg PolyFiber, Superflite, etc? If it makes any difference, I'm not set on the paint system but plan to try PolyFiber's practice kit later this month and see how...
  13. K

    What aviation news, blogs or e-mail newsletters do you actively read?

    Kitplanes and Sport Aviation magazines, the former being the better of the two (by far). I receive e-mail from Savvy Aviation, Kitplanes, and By Dan Johnson. I also follow a few forums now and then, including HBA, of course.
  14. K

    O-100-- interesting new engine

    True, a well designed opposed 2 can be smoother than a poorly executed 4, but an equally well done 4 wins handily, and the modern O-112 have decent crankshafts. I suspect Mr Plumb's secret is not an extra counterweight but the newly designed pistons and rods, which likely allowed him to reduce...
  15. K

    O-100-- interesting new engine

    I'm late to this party. I admire this fellow's efforts, no doubt inspired by the old Franklin 2A series engines, but... An opposed two will never be as smooth as an opposed 4, and this new engine will be competing against a fairly well established four cylinder O-112, namely the 1835 VW...
  16. K

    Hipec with a roller

    I don't find many comments on the web about Hipec. Most seem favorable. If they have the test kit I'll have to try it this fall. What became of the O-100? The website suggests nothing significant has happened in two years.
  17. K

    Hipec with a roller

    I looked more thoroughly at the scan of the 1991 Hipec manual which I came across on the web. It states in the Summary of Instructions all coats can be applied with a foam roller. In the more detailed sections, though, it says to spray the top coat (color) layer. A caution to use suitable...
  18. K

    Fabric repair over latex paint

    An EAA webinar this summer on painting with house paints included a comment from a listener that xylene has been used to remove latex paints before repairs.
  19. K

    Hipec with a roller

    I'll have to retract that. I stopped by the Hipec site today and found they claim that even over just a skinny tube you don't need to rib stitch, that the fillet of glue which forms at the top of the tube is enough. "The fabric breaks away from the rib at the same load value no matter what the...
  20. K

    Hipec with a roller

    Thanks for that link, Daleandee. My plane is fabric covered, but I'll keep the information to pass along to friends with aluminum airplanes. Over the years, TFF, Hipec has claimed their polyurethane process weighs much less than Polyfiber, but of course that assumes it's sprayed on. I'll give...
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