Trying to ID plastic type
Trying to ID plastic type
(OP)
I am developing a product and the plastic that the manufacturer used on the product seems to be brittle and i am trying to identify it.
This is supposed to be a heat resitant plastic. It is shiny black on the outside with licroscopic bumps. On the inside it has a dull finish that looks like foam. The edges are are easily chipped leaving the dull look. A sharp knock on the product can break off a piece of it.
Any help identifing this would be greatly appreciated.
This is supposed to be a heat resitant plastic. It is shiny black on the outside with licroscopic bumps. On the inside it has a dull finish that looks like foam. The edges are are easily chipped leaving the dull look. A sharp knock on the product can break off a piece of it.
Any help identifing this would be greatly appreciated.






RE: Trying to ID plastic type
Two simple tests will start to narrow it down.
Does it float on water.
Does it melt before it burns if you slowly bring it to a flame.
A more complex test is to observe and smell the smoke as it smolders, but take extreme care as several plastics produce VERY toxic smoke and some burn profusely and drip flaming drops.
Regards
Pat
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RE: Trying to ID plastic type
http://www.boedeker.com/burntest.htm
Acetal is pretty good to clear one's sinus', Flourpolymers can cause bone necrosis, but I would guess you have neither of those...
Your experience may differ.
www.tynevalleyplastics.co.uk
RE: Trying to ID plastic type
The gas from acetal is formaldehyde. It is more noxious than toxic. It certainly packs a punch.
Some thermosets also give off formaldehyde when burnt, but they do not melt or shrink from the flame.
Regards
Pat
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RE: Trying to ID plastic type
I once set fire to a CA guitar pick over my desk to illustrate flammability to a customer - still got the scorch marks! Burns pretty quick (understatement!)
H
www.tynevalleyplastics.co.uk