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

NP1 (formerly MasterSeal NP1) is a high-quality, moisture-cured polyurethane sealant offering excellent adhesion, bonding effectively to most construction materials without requiring a primer. It is suitable for use on green concrete. This sealant resists aging and weathering, and is very flexible with a joint movement capability of +/- 35%. Its broad temperature application range makes it appropriate 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; it is compatible with non-rigid coatings and can be painted. It can be utilized as an acoustical sealant to increase a system's STC value, reducing sound transfer and supporting high STC ratings