On Tue, 29 Aug 2006 01:57:23 GMT, Dan_Musicant
wrote:

A book I have (Renovating Old Houses by George Nash) noted as an aside
in one sentence that plaster will only stay usable for around a year. I
just bought 100 lb. of plaster (50 lb. USG Struct-o-lite and 50 lb. USG
Diamond Veneer Finish plaster) and wonder if it will last longer if I
store it in air-tight containers and store in a cool location. When I
bought these last week I had no idea it wouldn't keep indefinitely. I
have a lot of plaster work to do, but may well not get around to 95% of
it for a year or longer. Anyone have experience with these things?
Thanks for any info.


It will keep longer in an airtight container with dessicant, but
still not forever. Plaster is cheap. Give the excess to your kids to
play with.