Highly conformable, easy to install, and provides premium protection against leaks Employs the same proven technology as the famous Grace Ice & Water Shield Creates a barrier against water entry and a drainage plane Applied in fair weather when air, surface, and membrane temperatures are at least 25F. For installation, V40 must be dry for at least 24 hours after any precipitation. Complies with the requirements of AAMA 711 for self-adhered flashing materials Available Roll Widths: 4 , 6 , 9 , or 12 Inch Roll Length for All Sizes: 50 Feet Roll Thickness for All Sizes: 40 mil Carrier Frilm: Cross-laminated HDPE Adhesive: Rubberized Asphalt Release Liner: Paper Overlaps must be a minimum of 3in. Recommended Exposure Limit: 30 Days The Grace Vycor V40 Self-Adhered Flashing is a high-performance, self-adhered flashing membrane that provides premium protection against water infiltration in all critical non-roof detail areas, which traditional building papers, felts, and housewraps cannot match. This flashing tape is composed of two waterproofing materials, a rubberized asphalt and a cross-laminated polyethylene, reducing the risk of water infiltration. Vycor V40 flashing fully adheres to the substrate and seals around fasteners, preventing water from passing through and into the structure. Grace Vycor V40 window and door flashing is available in various sizes, tailored to meet the requirements for weather-resistive barriers as defined by Federal Specification UU-B-790a, Grade A. It protects from air, water and moisture infiltration in critical non-roof detail areas, including but not limited to: Window and door openings (headers, sills, jambs, thresholds, nailing flanges), Deck-to-wall intersections, Corner boards, Wall-to-wall tie-ins, Foundation sill plates, Sheathing panel seams, Under stucco finishes, Masonry walls, Other non-roof detail areas.