Master Builders Solutions

MasterSeal NP 1

MasterSeal NP 1 is a one-component, high-performance, non-priming, gun-grade, elastomeric polyurethane sealant. It requires no mixing and typically requires no priming to bond to many materials, including concrete and masonry. Trust MasterSeal NP 1 for your critical applications, from wall joints and window perimeters to roof seals and fire-rated joints.

Features and Benefits

  • 11 standard colors to match most common substrates
  • Flexible to keep moving joints weathertight
  • Primerless to many substrates for quick installation and cost reduction
  • Meets current VOC requirements eliminating compliance issues
  • USDA compliant allowing for use in meat and poultry plants
  • UL listed and is suitable for fire rated joints

Standard Colours

White, Stone, Limestone, Black, Medium Bronze, Aluminum Gray, Tan, Off White, Special Bronze, Redwood Tan, Gray

Click Here to See the Colour Chart                       

Click Here to View a Video on How to Apply      





  • Interior and exterior
  • Above and below grade
  • Immersed in water
  • Expansion joints
  • Panel walls
  • Precast units
  • Window frames
  • Roofing
  • Fascia
  • Parapets
  • Vinyl siding
  • Store front assemblies


  • Concrete
  • Masonry
  • Aluminum
  • Wood
  • Clay & concrete roof tiles
  • Stucco
  • Natural stone


Shop MasterSeal NP 1  





With Master Builders Solutions, BASF introduces a global brand of advanced chemical solutions for construction. The brand builds on the strengths of many existing BASF brands and products and represents our experience of more than 100 years in the construction industry.

The Master Builders Solutions brand brings all of BASF's expertise together to create chemical solutions for new construction, maintenance, repair and renovation of structures. Master Builders Solutions is built on the experience gained from more than a cen​tury in the construction industry.

The comprehensive portfolio under the Master Builders Solutions brand encompasses lasting solutions for construction, maintenance, repair and renovation of structures:

  • Concrete Admixtures
  • Cement Additives
  • Solutions for Underground Construction
  • Performance Grouts
  • Concrete Repair & Protection Solutions
  • Waterproofing Solutions
  • Sealants​
  • Performance Flooring Solutions




Concrete Repair


A full complement of cementitious and epoxy modified products are available to meet the unique demands of power plants and industrial repair.  Formulated to be wet or dry spray applied, formed our hand troweled, the MasterEmaco line of products ensures long term durability in vertical, horizontal and overhead installations, and provides additional features such as fast return to service, temperature tolerance (both high and low), fiber reinforcement and corrosion inhabitation.

View the Concrete Repair Brochure


Grouting Solutions


The MasterFlow product line includes precision cementitious and epoxy grouts that specifically engineered to provide a stable foundation for critical equipment. The Master Builders Solutions brand draws on more than a century of experience, and MasterFlow grouts have a proven track record. Respected for consistent, reliable performance, backed by the support of a global network of Master Builder Solutions experts from BASF, MasterFlow grouts are specified on power and industrial projects throughout the world.

View the Grouting Solutions Brochure


Cementitious Grouts

BASF supports equipment all over the world with MasterFlow cementitious mineral and metallic aggregate grouts.  Different products within the range allow for reliable, non-shrink performance at consistencies of fluid, flowable, plastic or damp pack.  

Master Builders Solutions Cementitious Grouts provide: 

  • Extended working time
  • Wide temperature range
  • High strength
  • Fluid consistency for east placement
  • Harden free of bleeding, segregation, or settlement shrinkage


Epoxy Grouts

MasterFlow epoxy grouts are three component grouts consisting of two part resin and high performance blended aggregate. Different products within the range provide solutions for traditional, high flow, anchor bolt, chock grouting and repair applications.  

Master Builders Solutions Epoxy Grouts provide: 

  • High early and ultimate strength
  • Resistance to dynamic and vibrational loads
  • Good chemical resistance
  • Bond to steel and concrete
  • Excellent bearing area for even distribution of loads



For more information on any of the above products, please contact us here to request samples, obtain more information or a quote and one of our architectural representatives will be in touch shortly!