Re:[ATM] glue

[Mark Holm <mdholm@telerama.com>]

The 4 mil clear plastic sheet is very likely to be made from 
polyethylene.  That is the cheapest and most common type.  It is pretty 
close to impossible to glue solidly to polyethylene.  Solvent based 
contact cement may have a chance.

To tell if it is polyethylene, light a small scrap on fire and take a 
small sniff of the smoke.  If it smells like a really cheap candle 
burning (paraffin wax, not beeswax or stearin from animal fat) then it 
is polyethylene.  If the odor is sharp and acrid and makes you cough, 
then it is likely to be polyvinyl chloride (PVC).  If it smells similar 
to burning hair, it is one of the nylon family.  (Nylon is not too 
likely as a consumer grade film in large sizes.)

If, per chance, it is PVC, you might be able to glue it with the glue 
used to make joints with PVC pipe.

-- 
Mark Holm
mdholm@telerama.com


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