The PERFORATED HI-SHRINK TAPE from Dunstone is a polyester material and starts to shrink at 150F, so even if it did in fact shrink it couldn't of applied much force seeing as it probably shrank at a low percentage. That being said, I would be surprised if your hair dryer went over 130F. To my knowledge, all hair dryers are limited from going to 140F because at that rough temperature the human skin starts to burn. I am surprised that you were able to get the shrink tape to shrink with a hair dryer. Level 1 - Mariah 54 - CTI-I100 Red Lightning Longburn - 6,345 Feetįrom Jim's last comment it seems the issue is with the Aeropoxy. More to come on carbon fiber when I get some more. I dont know maybe one of you can shed some light on this effect. Probably caused from too much heating, the nature of the fiberglass, or Aeropoxy's epoxy just tends to produce air bubbles. Will get a better picture when I cut it tomorrow. Originally this should have been 0.06" thick, but the compaction greatly reduces this. If only the air bubbles wouldnt form this would have been a pretty glass tube. Here shows how transparent this tube came out. Here is the tube after curing from the heat of the hair dryer. Also less resin in your part since the perforations allow for bleed out. The more layers the more stronger your part will be. This in turn allows for more layers to be put into the laminate (need to test this still). The pleasing parts was that the tape still neatly compacted the laminate. With carbon you hardly see this since the fabric is more stiff. This is the somewhat part that was not pleasing, however I feel the bubbles are natural when it comes to fiberglass. I may have ended up heating too much since I still got some nasty bubbles that piled up. This allowed me to not end up heating too much. I carefully applied heat (hot enough to the point the tape shrank) along the tape, while rotating the mandrel. After tightly wrapping the perforated tape around the laminated glass. I also did this using a hair dryer (best recommended use a heat gun capable of 300 degrees F+). In this set up I used 4 layers of 8 Harness Satin fiberglass along with using perforated heat shrink tape from dunstone. This of course, however is practice for later to be worked on carbon fiber. I thought I should post this since it really includes good info. Well I did it again, this time with much more pleasing results (somewhat).
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