Film-Gard 4 Ft X 100 Ft. Black 4 Mil. Lightweight Poly Film Sheeting Dupont The powerful spring mechanism lets

The powerful spring mechanism lets you grab and lift the grid with one hand

Clean with soap and water before first use

Compresses when cured preventing bowing issues with drywall board

tempered spring steel construction

Film-Gard 4 Ft X 100 Ft. Black 4 Mil. Lightweight Poly Film Sheeting Dupont The powerful spring mechanism letsSingle wound (no folds). Lightweight with excellent durability and multiple uses. Vapor barrier. Made tough, resists tears, and very pliable. Use for all purpse covers, vapor barriers, dust barriers, landscaping, and concret curing covers. Meets ASTM (American Society for Testing and Materials) designation: D4397 91 and all associated specifications.