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Oh, and on the subject of nitro's toxicity, it's well known that I'm sensitized to it to a scrary degree. What's less well known is that it is the result of being exposed to the off gassing of it, not overspray. I sprayed outdoors, in a light breeze(had a wonderful covered porch at the old home), but I'd bring the instruments indoors while they cured
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What I love most of polyester is that I can protect myself 100% while spraying, exit the building under pressure, and leaving a smaller exhaust fan running overnight, enter a completely safe shop the next morning. In winter, i don't leave the small fan running, but instead, enter the sop donned in my respirator, and hit the big fan, and head back to the house to finish my coffee. 10 minutes later, safe! None of that slow, low level, yet constant, exposure.
there's also less cleaning of the gun, a subject we didn't yet touch upon. Rick uses the 3M disposable cup system, but I simply suspend my gun in a pail of acetone. Sounds nasty, but stay with me a second: I ran a threaded rod through a large pail, and suspend my gun so that the acetone is in the wet passages only. Takes about 3/4 gallon of acetone. The pail is capped tightly(it's an old drywall compound pail, to be exact). When I am done shooting, I add an ounce of MEK in the cup, swish it around, and spray a little. I'll dump this out into a jar to be reused as thinner, and then swish the gun and cup in the acetone to grab a bit of that, and spray a second or three. hen off comes the cut, the gun gets hung in the acetone, and I wash the cup in the pail, and set it aside.
Takes 29 seconds to do, and all shot out the fan is maybe 1/4 ounce of material. In 3 years, I've not done anything to my gun. Nothing! At the end of the session, I take the cap off and leave that in the pail, also, but that's it. No rebuilds, no gumming, no nothing. I think all guns should live in an acetone bath.... <g>
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