Sikaflex NP1 with Gloves - Stone 20oz Polyurethane Sealant Non Sag, Flexible, Elastomeric Acoustic Sealant, Pack of 20

NP1 (formerly Master Seal NP1) is a high-grade, moisture-cured polyurethane sealant that provides excellent adhesion and bonds to most construction materials without requiring a primer; it can be used on green concrete. It resists aging and weathering and is highly flexible with a joint movement capability of +/-35%. Its wide temperature application range makes it suitable for all climates. It is designed for all types of joints where the sealant depth is between a maximum of 1/2' and a minimum of 1/4'. It is suitable for water immersion with documented performance in wet areas and is compatible with non-rigid coatings and paintable. It can be used as an acoustical sealant to increase a system's STC value, minimize sound transfer, and support high STC ratings