lml@lancaironline.net Mailing List Archive

<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> Never hurts to reiterate: Imron and similar acrylic polyurethanes emit isocyanates when sprayed. These compounds are pretty toxic, and can be absorbed not only through the lungs, but also through the skin and particularly the eyes (!). My get-up when I paint consists of: -- Forced air respirator from Hobby Air -- Tyvek hood, same source -- Long sleeves tucked into rubber gloves -- Long pants Typical procedure is to spray, get out, come back 15 minutes later (still in protective gear), open windows, get out again until air has cleared. There are several web sites that give toxicity data (try searching on "isocyanates" at google.com). The message is actually kind of mixed. Lots of folks who work with it for years have no problems, but there is the odd individual that develops something nasty like acute bronchial asthma and dies on the way to the hospital. None of these cases involve individuals wearing proper protective gear. The rig described above is actually not that expensive or that much of a nuisance to wear. I'd suggest buying the respirator with the longer hose. When you're painting around big stuff you never seem to have enough hose. Also, buy a supply of the disposable shields for the hood. They can be cleaned a couple of times with alcohol, but after a while you can't see very well through them. Once you're properly protected, Imron is really nice to work with. It's tough as hell, buffs up beautifully, and is easier to repair or touch up than clear coat systems. I spray it with a Sata HVLP gun, using a DeVilbiss filter and regulator system. Jim Cameron N143ES reserved LML website: http://members.olsusa.com/mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please remember that purchases from the Builders' Bookstore assist with the management of the LML. Please send your photos and drawings to marvkaye@olsusa.com.