Used to reinforce USG Middle East Solidrock, USG Securock® Glass-mat sheathing, USG Durock® Brand Cement Board, USG Fiberock® Brand Underlayment and Tile Backerboard, USG Durock Brand Glass-Mat Tile Backerboard, and USG Durock Brand UltraLight Foam Tile Backerboard collectively. The interior and exterior USG Durock® Brand Tapes are especially made to strengthen the corners and joints of USG tile backerboard panels. USG tile backerboard panels' corners and joins are strengthened using the 50mm USG Durock Interior Tape. When used as an outside substrate, USG Durock Exterior Tape, which is 100mm wide, is a necessary product for completely covering and reinforcing corners and joints of USG Durock® Cement Board. Glassfiber mesh tapes with alkali resistance are used to create strong, durable joints.