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BASF Sonolastic NP1 and NP2 Sealants

Sonolastic NP1

NP-1 and NP-2 are the industries most popular high-performance sealants. They are moisture-curing polyurethanes. NP1 and NP1 are designed for sealing / caulking all types of active exterior joints. NP-1 requires no mixing and bonds to most construction materials without a primer, including concrete and masonry and many metals. NP-2 is a color tintable 3-part sealant which accommodates up to 2" joints with +/- 50% joint movement. NP2 has 40 standard colors and up to 470 custom color choices. During 2014 BASF started marketing NP1 as Masterbuilders MasterSeal NP1. Its the same product.


Questions? Email
Or call 1-800-474-7570 / 602-272-8128
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NP-1np1 <- Click Links



More NP Information:

NP-1 Product Data Sheet

NP-2 Product Data Sheet

Leeds Certificationnp1

Standard Colors


NP-1 Primary Uses: Interior or Exterior sealant. Its is the toughest most durable sealant, and suitable for all common construction materials, including: Concrete / masonry, aluminum, wood and wood window frames, expansion wall joints, curtain wall construction, panel walls, pre-cast units, fascia, parapets, structural components, vinyl siding.


NP-1 and NP-2 Features: np1
- NP-1: +/- 35% joint movement capability, up to 1-inch.
     NP1 has 800% Elongation with 350 PSI Tensile.
- NP-2: +/-50% movement, up to 2-inch joint; Color Tintable
     NP2 has 280% Elongation with 160 PSI tensile.
- Both are available in 10.1 oz. cartridges, 
     20 oz. Sausages, and 1-1/2 to 5 Gallon pails.
- Easy to gun and tool.
- Popular colors.
- Fully Paintable.
- Bonds to most construction materials without a primer.
    733 Primer is recommended on chalky or difficult surfaces.
- Fire Resistant: UL Rated, Passes 4 hour when used withNP2 Tintable, Quick-Cure, Polyurethant Sealant, 1.5G (w/o tint)
   mineral wool.
- USDA Compliant for use in meat and poultry area.
- Extremely Weather resistant.
- Wide range of application temperatures.
- Long-lasting weather-tight seals.
- Suitable for all climates.
- Both are generally used together with Backer Rod.

NP-2 (BASF MasterSeal 900) is a color-tintable sealant. It can also accommodate joints up to 2" wide with +/- 50% joint movement, but has lower tensile strength. NP-2 can also be accelerated for quicker cure or to apply down to 20F. Its also great for color matching exterior colors on window frames, stucco, expansion joints, etc. 


NP-1, NP-2 Colors:

NP-1 is pre-tinted in 11 standard colors. We stock the complete line of standard colors icluding white, off-white, limestone, stone, tan, aluminium grey, medium bronze, special bronze, redwood tan, and black.


NP-2 has 40 standard colors and 470 Custom Colors.NP1 Propak, K 20 OZ. SAUSAGE PACK in all colors


NP1 / NP2 Packaging:

20 oz (590 ml) Sausages, 20 Sausages/Case.
10.1 oz (300 ml) Tubes, 30 Tubes/Case;
1440 Tubes/30 Cases/Pallet.



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Adhesives, Backer Rod, Butyl Rubber, Caulk & Sealants, Chem Curbs, Chinking, Concrete Products, Concrete Repair, Concrete Stain & Sealer, Deck Coatings, Deck Hardware, Diamond Saw Blades, Drains, Electric Hot Air Welders, Electric Service Flashings, Eternabond, Expansion Joints, Fall Protection Kits, Fasteners, Fire Stopping Vents, Flashing Tape, Foam Roofing, Gas & Safety Cans, Generators, Hidden, Deck Fasteners, Hot Dipped Roofing Nails, Hot Tar Kettles, Houseboat Roof/Deck Repair, Knowledgebase, Log Home Products, Magnetic Hammers, Metal Roofing, Miami-Dade Nails, Narrow Crown Stainless, StaplesNP1, Polyurethane Foam, Pipe Flashings, Power Tools & Accessories, Propane Hot Air Welders, PVC Roofing, Retrofit Pipe Flashings, Rex Synfelt, Rigging/Lifting Hardware, Rivets, Roof Anchors, Roof Hatch, Roof Leak Repair, Roof Paints & Coatings, Roof Repair Materials, Roof Screws, Roofing Fasteners, Roofing Nails, Rooftop Electrical Flashings, Rope, RV & Trailer Roof Repair, RV Roof Replacement, Safety Rail Systems, Saw Blades, Sealants, Sealing Washers, Snow Guards, Spray Polyurethane Foam, Stinger, Stainless Nails/Fasteners, Tarps, TPO Accessories, Underlayments, Vents, Roof Vents, Video Movies, Waterproofing Products, Wood Deck Hardware

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ACRO, Active Ventilation, AES Epoxies, AES Raptor, AJC, Albion, Alcoa/Marson, All Line, Alpha ProTech, American Sealants, Applied Technologies, ASI Products, Attic Breeze, Aztec Washer, Babcock-Davis, BAK Welders, BASF, Berger, Berry Plastics, Biltrite, Brentwood, Brewer, CEP, Chem Link, Cleasby, CME Manufacturing, CPR, Deks, Dow, Eagle, EagleView, Erin Rope, ES Products, Eternabond, Everhard, Falltech, Flame Engineering, Flashco, Foxy, Franklin / Titebond, Fry Reglet, Greenstreak, GSSI, Guardian, Harpster, HY-C, Interwrap, ITP, ITW, Jaaco, JL Industries, Josam, Karnak, Levis, LionGuard, LSP, Lucas, Luco, Makita, Marathon, Marshalltown, Maze Nails, MEC, MFM, Miro, MM Products, National Nail, Natural Light, Newborn, OMG, Pam Fasteners, Pearl, Polar Blox, Polycoat, Portals Plus, Powers Fasteners, Prime Source, ProTech, Protecto Wrap, Pylex, Quarrix, QuickMount, RHH Foam, Robetex, Roofmaster, RoofTop Products, Senco, SFS Intec, Sievert, Simpson Strong-Tie, Smith, Sno Gem, Solomon, Sonneborn, Steelhead, SunRise Solar, Sunset, Super Anchor, Surebond, Swan Secure, TRA, Trufast, United / Quest, Vulcan, Wade, Watts, Weatherbond, Werner, Western Colloid, Winco, Zurn


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