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We continue to have a problem with using lacquer from a spray can bubbling up (finish on the wood bubbles up). This is very frustrating do you have any reason as to why this happens?

Since you said you are spraying right out of the can, I think we can eliminate viscosity as a problem. The stuff that comes out of a can is pretty forgiving. So I think your problem is whatever you are spraying over. If spraying over stain, the stain may still be releasing solvent (curing process) and that is what is bubbling up. If you are spraying over bare wood, the surface is improperly prepared.

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