Compose A Joint Usg Boral - Ready Mix Joint Compound All Purpose Joint Compound Is Usually Sold Pre-mixed. This Product Is Used For Almost Every Drywall Installation And Repair. Joint Compound Is Used To Finish Drywall Joints And Corners. It Provides Faster And Superior Performance In Joint Closure. It Is Also Useful For Repairing Cracks And Holes In Existing Plasterboard And Plaster Surfaces. You Can Save Time By Using Joint Compound Cause It Does Not Need To Any Extra Process. It Is Ready To Use. It Takes 6 To 12 Hours To Dry, Depending On The Humidity And Temperature. Turkey Is One Of The World's Leading Country In The Gypsum Resources And Production Of Gypsum. As Board And Wall Company; We Export Highest Quality Of Gypsum Powder And Joint Compound All Around The World. Megaturk Co. Ltd, Istanbul - Turkey