Norske Backer's INSUL-LOCK Double Seal (DS) is an easy-to-install pipe insulation with a locking adhesive flap. This mold-resistant pipe insulation is an environmentally friendly foam pipe gasket, ideal for condensation prevention and frost protection of water pipes. - Compatible with a range of heating cables and heating tapes - Scrim reinforcement on the seam surface - CFC-free, flexible elastomeric thermal insulation