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[Anonymous]

does it matter if u paint ur plywood and roadbed stufs with latex stuff or not? and wats the best thing for gluing homasote to wood?

[TomDiehl]

Painting or sealing plywood is important if your layout is going to be in a damp area, such as a basement. Even with a dehumidifier, the humidity can fluctuate and cause warping as the wood absorbs and releases it.

From a scenery point of view, the plywood should be covered.

Most wood glues will work well with wood to homosote joints. I use Elmer's Carpenter's Wood Glue diluted about 25% with water to help it absorb into the homosote. Too much water will warp the homosote. For pine joints, like the layout framework, use the glue full strength.

[ndbprr]

Some people do nothing and have no problems and some go to the extreme sealing all wood with varnish or shellac to prevent mositure problems.  I live in Chicago where the temperature outside ranges form 27 below (one time) to over 100 and have a damp basement where humidity ranges from 90+% down to virtually none.  I have never sealed wood and never had a problem. Others have so go figure.  I use wood glue to hold homasote to plywood and never had a problem (yet!).  Yes you can paint wood with latex.  That is what it is designed for as long as it is exterior paint.