bjornufknu 0 #1 April 27, 2008 Are there any articles/research about canopy wear in sunlight behind window glass? Or does the window filter all the UV light?d.d.s. Quote Share this post Link to post Share on other sites
skybytch 273 #2 April 27, 2008 According to Poynter's books, even sunlight filtered through a window can damage fabric. Quote Share this post Link to post Share on other sites
BrianM 1 #3 April 27, 2008 Glass filters out some UV, but not all. Poynter Volume 1, 9.3.8.15 has information about UV damage, including this table: Percent breaking strength in pounds lost for Tybe 1 Fabric exposed to the summer sun. First column is without glass, second column is with glass. 1 week 52% 40% 2 weeks 71% 61% 3 weeks 94% 85%"It's amazing what you can learn while you're not talking." - Skydivesg Quote Share this post Link to post Share on other sites
Martini 0 #4 April 28, 2008 I'm guessing that Dan's fabric was left in full sun exposure in a place like Eloy. I wonder about fabric left in the light but not in direct sunlight in a place more like Seattle.Sometimes you eat the bear.............. Quote Share this post Link to post Share on other sites
bodypilot1 0 #5 April 28, 2008 QuoteAre there any articles/research about canopy wear in sunlight behind window glass? Or does the window filter all the UV light? Ever seen the dashboard or rear seat of an older car? Yes, it will damage a canopy even through glass, but it will fade alot before the material breaks down. Sunlight isn't good for any material.www.WestCoastWingsuits.com www.PrecisionSkydiving.com Quote Share this post Link to post Share on other sites
fcajump 164 #6 April 30, 2008 QuoteI'm guessing that Dan's fabric was left in full sun exposure in a place like Eloy. I wonder about fabric left in the light but not in direct sunlight in a place more like Seattle. Don't know about Dan's stats, but during a conversation with a fabric manufacturer he said that the (fabric) industry standard light exposure measurement is the lumins that is approx the same as noon-day on the summer solstace in the Arizona desert on a clear day. Made sense at the time, since they would need to have SOME standard by which to test... JWAlways remember that some clouds are harder than others... Quote Share this post Link to post Share on other sites
d123 1 #7 May 1, 2008 Does the webbing/harness have the same rate of deterioration?Lock, Dock and Two Smoking Barrelrolls! Quote Share this post Link to post Share on other sites
bodypilot1 0 #8 May 1, 2008 QuoteDoes the webbing/harness have the same rate of deterioration? Somewhat, yes.www.WestCoastWingsuits.com www.PrecisionSkydiving.com Quote Share this post Link to post Share on other sites
point_code 0 #9 May 4, 2008 ok, forgive me if this sounds like a stupid question, but if your canopy is packed and the rig is in a gearbag stowed in the backseat or your car........is it still subject to UV damage? Quote Share this post Link to post Share on other sites
BrianM 1 #10 May 5, 2008 Quoteok, forgive me if this sounds like a stupid question, but if your canopy is packed and the rig is in a gearbag stowed in the backseat or your car........is it still subject to UV damage? No. UV will not penetrate very far through fabric, certainly not through a gear bag. Same reason you don't get a sunburn through clothing."It's amazing what you can learn while you're not talking." - Skydivesg Quote Share this post Link to post Share on other sites
billvon 2,990 #11 May 5, 2008 Typical window glass blocks 90-95% of UVB and UVC, which is UV light under 300nm (the damaging stuff.) Which means that leaving it in your car for 20 hours is similar to leaving it lying out in the sun for 1 hour. Quote Share this post Link to post Share on other sites
phoenixlpr 0 #12 May 5, 2008 If its a hot day heat may damage the gear too. Quote Share this post Link to post Share on other sites
popsjumper 2 #13 May 5, 2008 Quoteok, forgive me if this sounds like a stupid question, but if your canopy is packed and the rig is in a gearbag stowed in the backseat or your car........is it still subject to UV damage? More likely subject to theft damage. Take it into the house with you.My reality and yours are quite different. I think we're all Bozos on this bus. Falcon5232, SCS8170, SCSA353, POPS9398, DS239 Quote Share this post Link to post Share on other sites
