Re: Chemical reactions to Nylon covered polymide rope

Frank wrote:
john.spevacek@xxxxxxxxxxxxxxxxx wrote:
Frank wrote:
pkozousek@xxxxxxxxxxx wrote:
<snip>

The tech data *** for the C237 can be found at:
http://www.leighspaints.co.uk/Products.aspx (note the correct
spelling of the company name.) It a solvent based paint, ~ 46% VOC.

My first thought was that if it was a water based paint, then the
uptake of water by the nylon would let the nylon stretch and sag (if
under tension), but that is not a concern.

Thinking about it, I've never heard of a polyimide rope.
Frank

I think he means polyamide...
Personally I can't see nylon doing anything with that paint. I doubt if the
paint will even adhere that well to nylon - I would think that any minor
build up would start cracking and flaking (of the paint layer). As someone
else said, it's used for paint brushes. The things that nylon does not like
is mineral acids (It reminds me of a girl who spilt some dilute hydrochloric
on the floor - all her tights suddenly went into loads of holes from the
drops that splashed back up), and I suspect strong bases is a no no as well
(never clean you paint brushes in caustic - dissolves the bristles!).

--
Ron Jones
Process Safety & Development Specialist
Don't repeat history, unreported chemical lab/plant near misses at
http://www.crhf.org.uk Only two things are certain: The universe and
human stupidity; and I'm not certain about the universe. ~ Albert
Einstein


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