Re: [T3] The new primer filler

[Jim Adney <jadney@vwtype3.org>]

On 13 Aug 2007 at 20:51, james.candace wrote:

> They say that issocyanates are only harmfull in mist form, but it is a 
> solvent and can take many forms I guess. You would only realy take a gamble
> lilke that if you are a fool.

My point was that once the 2-part paint has reacted, the isocyanates have 
combined into a different, relatively inert form, and are no longer poisonous. 
Sort of like saying that although chlorine is nasty stuff, sodium chloride 
(table salt) is relatively harmless. I don't think the isocyanates are part of 
the solvents; they are part of the reaction that makes this a catalyzed paint.

I don't know the chemistry, but my impression from the literature is that there 
are no isocyanates left in properly catalyzed paint. They point out that 
uncatalyzed paint must be disposed of as hazardous waste, but that if you just 
mix it in the proper ratio with the catalyst, then it is perfectly safe and 
legal to dispose of it with normal trash.

-- 
Jim Adney
jadney@vwtype3.org
Madison, WI USA

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