Thread: Door Curtains
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Old 05-21-2014, 07:30 AM
smottin smottin is offline
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Join Date: Nov 2012
Location: Wales
Posts: 7
Default Past-O-mat

Hello people, looking at this thread it is likley that the mat is made of PVC (Polyvinylchloride) the stuff is inherintly flame retardant. It was developed to make elecrical cable insulation during the war when rubber was very limited in supply. When it burns it produces hydrochloric acid vapour - acid fumes kill fire so it is immediately self extingushing which is very handy in a cable.

You can test for PVC but rubbing a red hot loop of copper wire on the plastic then quickly dropping the wire back into the flame, a green flash tels youi chlorine is present. This is a handy way of identifying different plastics from PVC without having a chemical laboratory to hand.

PVC is ideal for worshop curtians and has been used for years. I will be using this stuff now you have identifed it for me. Also am a fan of anthing-O-matic, we have a fan club over here and this stuff is now in the hall of fame. for more -O-matic action please see Wallis & Grommet.
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Colin
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