Magnesium Oxide Board Joint Compound: Innova's recommended interior and exterior joint compound for magnesium oxide board and MGO SIP panels. Exterior and Interior rated sandable elastomeric joint compound. Use with fiberglass tape for patching exterior joints in MGO Board and MGO SIP joints. Use without fiberglass tape to patch interior MGO board and MGO SIP joints. Sand like joint compound, seal with an exterior grade primer and paint. (See video for full joint procedure with this material - How to finish MGO Joints).

Use this material to patch damaged MGO board and MGO SIP panel skins.

5 gallon pale

**For large orders please contact Innova for reduced freight cost or pickup orders**