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  #1  
Old October 15th, 2011, 05:03 PM
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CARC paints

Anyone know when use of carc paints began ?
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  #2  
Old October 15th, 2011, 08:44 PM
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I will talk to my old man but i think early 80's is about right. The helicopters in Vietnam did not have it. By 1985 they did.
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Old October 15th, 2011, 09:15 PM
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Stripping a sankey tub to galvanize it and got down to a layer that aircraft stripper seemingly has no effect on. Was going to grab a sander but then realized it may be carc and thought better of that idea
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Old October 15th, 2011, 10:36 PM
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CARC was first fielded in 1974, and required on all combat vehicles in 1983.

VERY GOOD CALL to not mess with that shit. It can put you in the hospital if you are not careful.
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Old October 16th, 2011, 12:46 AM
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so this is british and probably late 70's vintage think its carc ? Aircraft stripper it pretty nasty stuff and doesn't have much effect. Under the paint is a yellow seemingly zinc rich epoxy primer.
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Old October 16th, 2011, 10:21 AM
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Hmmm... I don't know. I have never seen the primer, so I don't know what color it would be. I guess the question would be how long was it MoD? It might have been manufactured in the 70s, but if it was in service into the 80s its a good bet it is CARC.
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Old October 16th, 2011, 10:50 AM
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Pretty sure the primer is epoxy.
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Old October 16th, 2011, 11:52 AM
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Carc primer is a part A part b solution (currently). Nasty shit but works.
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Old October 16th, 2011, 01:18 PM
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Just curious: How is CARC any different from any other two-part polyurethane?

To me it sounds exactly the same.

Is it the use of a different kind of isocyanate - aliphatic, aromatic or cycloaliphatic that causes the polyurethane coating to be especially toxic upon sanding? Is it the presence of unreacted isocyanates embedded in the coating itself that are released upon sanding?

I ask this because virtually all non-CARC urethane paints have high toxicity upon application, but almost no mention is made of their toxicity upon sanding or removal.

What's the deal?
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Old October 16th, 2011, 02:08 PM
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Quote:
Originally Posted by navydevildoc View Post
Hmmm... I don't know. I have never seen the primer, so I don't know what color it would be. I guess the question would be how long was it MoD? It might have been manufactured in the 70s, but if it was in service into the 80s its a good bet it is CARC.
no way to know this is a replacement tub for my early 70's one that shot. On sankeys the data plates are on the frame not the tub.

Ed- not sure what the real deal is on why but had poked around enough on Steel Soldiers to have read that sanding the stuff without a forced air respirator is not advisable.
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Old October 16th, 2011, 11:13 PM
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Quote:
Originally Posted by sonoronos View Post
Just curious: How is CARC any different from any other two-part polyurethane?

To me it sounds exactly the same.

Is it the use of a different kind of isocyanate - aliphatic, aromatic or cycloaliphatic that causes the polyurethane coating to be especially toxic upon sanding? Is it the presence of unreacted isocyanates embedded in the coating itself that are released upon sanding?

I ask this because virtually all non-CARC urethane paints have high toxicity upon application, but almost no mention is made of their toxicity upon sanding or removal.

What's the deal?
CARC stands for "Chemical Agent Resistanc Coating". Basically, it doesn't absorb chemical agents the way the older paints did, and is easier to decon. Decon chemicals can be pretty nasty, and can strip paint.... so CARC was designed to resist that too, which is why the OP had so much trouble with paint strippers.

http://www.inetres.com/gp/military/cv/carc.html

-Hans
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