Paper seal strip for plasterboard 5cm x 23 meters Toupret Long fiber-based micro-perforated paper. Papier seal strips can be used indoors on plasterboard with thinned edges For plasterboard Long fiber-based micro-perforated paper. The papers seal strips can be used indoors on plasterboard with thinned edges in combination with the EJ 3H and EJ 8 hours plasters. Paper seal strip: Strong flexion resistance Micro-perforated: Best grip of the band Absorption comparable to plates facings. Sun. : 5cmx23ml Prestalia E-commerce solutions.