NP1 and NP1 are designed for sealing / caulking all types of active exterior construction joints. NP1 caulk sealant requires no mixing and bonds to most construction materials without a primer, including concrete, masonry, wood and most metals.
Is MasterSeal NP 1 waterproof?
Excellent waterproofing
NP1 isn’t merely water-tight, it can be fully submerged in water without losing its grip or seal. While not recommended for applications that will remain permanently submerged, it can resist even the most powerful sources of water.
Can you apply NP1 in the rain?
As long as the surface to which you are applying the Np-1 is completely dry, you can apply this product. If you think it will rain within 1 or 2 hours after application wait.
How strong is NP1?
With 800% elongation, 350 psi tensile and +/- 35% joint movement capability, NP-1 handles most every exterior application up to 1-1/2 inch wide. NP-1 requires no mixing and typically bonds to many materials without a primer, including concrete and masonry. NP1 dries with a smooth finish and is paintable.
How long does it take for MasterSeal NP1 to dry?
The Curing Process
Ideally, if the humidity level is about 50% and the temperature is 75 °F (24 °C), a total cure will take approximately a full week. For immersion with metal structures submerged in water, the curing time will take around 21 days.
What is the longest lasting exterior caulk?
The longest-lasting sealants are silicones, urethanes and urethane hybrids, he says. Silicone and polyurethane sealants last the longest, Hess agrees, but are also the most expensive and difficult to work with. “They don’t tool very well, are hard to clean up and in the case of [traditional] silicone, not paintable.”
How do you clean NP1?
clean by grinding, sandblasting or wire brushing to expose a sound surface free of contamination and laitance. new and weathered wood must be clean, dry and sound. Scrape away loose paint to bare wood. any coatings on wood must be tested to verify adhesion of sealant or to determine an appropriate primer.
Can you use NP1 as an adhesive?
MasterSeal NP 1 is a one-component, high performance, non-priming, gun-grade, elastomeric polyurethane sealant. It is often used as a construction adhesive. It requires no mixing and typically requires no priming to bond to many materials, including concrete and masonry.
Who makes NP1?
BASF NP1 121.2-oz Tan Paintable Advanced Sealant Caulk.
Is MasterSeal NP1 self leveling?
MasterSeal SL 1 is one component, non-priming, self-leveling elastomeric polyurethane designed for expansion joints in concrete floors and decks. Use it where flexibility as well as abrasion and puncture resistance are required.
What is MasterSeal NP1 high performance polyurethane sealant used for?
Used as an acoustic sealant, MasterSeal NP 1 reduces sound transmission in partition systems to support high STC values by sealing spaces around cut-outs and at perimeters of partitions. Recommended uses: Interior and exterior. Above and below grade.
How do you smooth polyurethane caulk?
Caulking Tips
It’s best to tool silicone and polyurethane joints with a plastic spoon or a caulk tool. For poly caulk, wet the tool surface with solvent to get smooth results with this super-sticky material.
Is NP1 caulking paintable?
NP-1TM requires no mixing and typically bonds to many materials without a primer, including concrete and masonry. NP1 dries with a smooth finish and is paintable.
