WOOD WORK ARTIST
Posted on Thursday, December 17th, 2009 at 4:33 am
Plaster, portland cement, and bonding to wood. How does it work?
As an artist, I’m experimenting with plaster and cement.
As a resident of a temperate zone, I’m wondering about temperature, curing times, and bonding to substrate.
I’m working on square pieces of particle board. I rough up the surface with a wire brush to improve bonding to the substrate.
Both plaster and cement create heat as they solidify. Are either impaired by a low (and possibly sub-freezing) temperature?
I have a makeshift oven that can reach 110 to 120 degrees (F) regardless of the outside temperature. Will heating cement or plaster to this extent improve its ability to bond to wood? Might it only reduce setting time?
hi we in the building industry use pva glue to coat surfaces for plaster plus adding it to the mix , if you are using finnish coat because of its smooth finnish , if you use a coating plaster it would adhere better but still use pva, cement is different, still use pva but it also crazes if used neat but suggest you use silver sand in the mix it is the smoothest sand and is used by artists in there work it is very fine grained, curing times will be shortened by heat but to much will crack or craze so better to heat a cupboard and store in there and not cook them, hth.
Jerry Wallin – Wood Working Indiana Artisan
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