Vapor barriers

I'm looking for an easily attainable wood vapor barrier.  Is water
soluble polyurethane acceptable?

Rashonda Welch
Georgia Department of Natural Resources
Preservation Laboratory
2600 Highway 155 SW
Stockbridge, GA  30281


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                  Conservation DistList Instance 15:65
                  Distributed: Tuesday, March 26, 2002
                       Message Id: cdl-15-65-020
                                  ***