Q: I learned the hard way that a thin plastic cup I had could be dissolved by lacquer thinner. Can you tell me what kind of plastic container will not react and how I can tell a container is made of a safe plastic?
A: Nalgene, nylons, polyesters, acetal, polyethylene and polypropylene all have decent resistance to lacquer thinner. I gather you are using recycled food containers, like yogurt cups and the like. You can do a lot of research and figure out which plastic is being used based on the recycle codes http://www.earthodyssey.com/symbols.html or simply do it the quick and easy way; test your container first with a bit of thinner.
Michael Dresdner
straight talk about wood finishing
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