MasterSeal® NP 100™ High Performance Hybrid Sealant 20-oz. ProPak, Medium Bronze

Product Attributes

  • Item Number: 7681
  • Product: MasterSeal® NP 100™ High Performance Hybrid Sealant 20-oz. ProPak, Medium Bronze
  • Stock UOM: EA
  • Manufacturer: BASF
  • Tradename: MasterSeal®
  • Color: Medium Bronze
  • Color Family: Tan/Brown
  • Chemical makeup: Polyurethane
  • Quantity per Pallet: 20
  • Weight (lb.): 2.00
  • Container Size: 20 oz.


MasterSeal NP 100 is formulated with unique BASF polymers that allow for versatile adhesion to a variety of substrates while accommodating high movement and providing long term durability. MasterSeal NP 100 is a high performance, low modulus, high movement, non-sag, fast curing, and ready-to-use hybrid sealant. It combines the best qualities of organic and silicone sealants to keep moving joints weather-tight.

Uses & Features

Recommended uses:

  • Vertical or horizontal
  • Exterior or interior
  • Above grade
  • For sealing a variety of building joints against water and air intrusion
  • Joints with extreme movement
  • Storefront systems
  • Expansion joints
  • Panel walls
  • Precast units
  • Aluminum, vinyl and wood window frames
  • Fascia
  • Parapets
  • Sanitary applications
  • Roofing


  • Superior adhesion to a variety of substrates resulting in a long term bond
  • Low modulus, formulated for joint movement of ±50%
  • Resists chalking, cracking and fading to maintain long lasting weather-tight seals
  • Wide temperature application range
  • Available in six standard colors
  • Meets all state and federal VOC regulations


  • Compatible with elastomeric coatings and can be painted soon after installation
  • Easy to gun and tool, which speeds up application and makes neater joints
  • MasterSeal 905 accelerator available for use in cold climate applications to help speed initial cure
  • Fast curing helps to speed up jobsite production
  • Non-staining formula for use on stone and other sensitive substrates

Technical Information