We started finishing our magnum board wall and ceiling panels this week. We are using a magnesium powder+ 200-300 grit sand + water mixture for our finishing material. We use this combination in replace of the typical drywall joint compound.. This is a non toxic, mold proof, water proof and breathable alternative to the accepted standard. The material is a bit more expensive but we feel that the benefits far outweigh the additional cost of the material.
Would you be willing to share the proportions of your mixture? What kind of sand do you use? Could you recommend a supplier for the magnesium powder? Thanks!
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