MasterSeal NP 150 is a high performance, very low-modulus, high-movement, non-sag, fast-curing, hybrid sealant. 



  • Vertical or horizontal

  • Exterior or interior

  • Above grade

  • Joints with high movement

  • In place of silicone sealants • Store front systems

  • Expansion joints

  • Panel walls

  • Precast units

  • Aluminum, vinyl and wood window frames • Fascia

  • Parapets

  • Sanitary applications 



  • Superior adhesion results in a long-lasting bond, helping to reduce call backs

  • Low modulus to accommodate for joint movement (100% extension in EIFS joints with little stress on bond line)

  • Can be painted with elastomeric coatings soon after installation

  • Easy to gun and tool, speeding up application

  • Wide temperature application range

  • Weather resistant for long-lasting

  • weathertight seals

  • Fast curing helps to speed up jobsite production

  • Non-staining formula for use on stone and other

  • sensitive substrates

  • Available in ProPaks to reduce jobsite waste and

  • lower disposal costs

  • Meets all state and federal VOC regulations