USG Sheetrock® Brand Fiberglass Drywall Tape is made with a unique cross-fiberglass construction to provide greater drywall joint strength than conventional fiberglass mesh tapes. SHEETROCK Fiberglass Drywall Tape resists shrinking, tearing, stretching and distortion. It also resists joint cracking that can occur when conventional fiberglass mesh tape is used. In reinforcing joints and corners in drywall interiors, setting-type joint compounds (not ready-mixed or powder drying-type joint compounds) are recommended for the first coat over SHEETROCK Fiberglass Drywall Tape. For the second coat, setting-type or drying-type (ready-mixed or powder) joint compounds may be used. SHEETROCK Fiberglass Drywall Tape is recommended for use with either setting-type or drying-type joint compounds to repair small cracks and holes in drywall and plaster surfaces.