SKU: 128878991

Sonneborn MasterSeal NP1 121.2-oz Medium Bronze Paintable Polyurethane Window and Door Caulk

Sale price$12.59 Regular price$13.99
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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Description

Sonneborn MasterSeal NP1 121.2-oz Medium Bronze Paintable Polyurethane Window and Door CaulkMasterSeal 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. Recommended uses: Interior and exterior Above and below grade Immersed in water Expansion joints Panel walls Precast units Aluminum and wood window frames Roofing Fascia Parapets Vinyl siding Store front assemblies What are the

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.

Recommended uses:

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

What are the unique features of MasterSeal NP 1?
Available in ProPaks, reducing jobsite waste, lowering disposal costs
12 standard colors to match a wide variety of common substrates
Wide temperature application range makes MasterSeal NP 1 suitable for all climates
UL listed; Passes 4–hour, 4–inch, fire and hose stream test when used with Ultra Block or mineral wool
Suitable for water immersion with documented performance in wet areas
Meets VOC requirements in all 50 states

What are the benefits of MasterSeal NP 1?
One-component formula requires no mixing, helping to reduce labor costs
Joint movement capability ±35% provides excellent flexibility for keeping moving joints weathertight
Easy to gun and tool, speeding up application and making neater joints
No primer required for most construction materials lowering installation costs
Weather resistant for long-lasting weather tight seals
Compatible with non-rigid coatings and can be painted
Superior holding power for long-lasting roof tile installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 128878991

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4.4 ★★★★★
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Verified Purchase
Deerok Chopra
Battle Creek, US
★★★★★ 5
Good Quality
Size: 2 Colors each 10FT, Style: 22AWG
Good quality wire. Doesn't fail and break after only a few bends or twists like most cheap wire. The silicone insulator is great for flexibility in tight spaces like guitar electronics cavities. I'm constantly trying out new part and pickups and found that some cheaper wires were often failing due to being moved around all the time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 5, 2024
M
Verified Purchase
Mort
Alexandria, US
★★★★★ 5
Great wire
Size: 2 Colors each 10FT, Style: 22AWG
I needed a flexible durable wire to fix an old model train. It worked perfect. Wire is generally wire. If you require all the special features of this wire it will meet all your needs
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2020
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Nice quality
Had to return due to our mistake but the mechanic said it was good quality. Ordered the correct size and worked great.
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Reviewed in the United States on March 30, 2025
K
Verified Purchase
katelyn traut
Carnegie, US
★★★★★ 5
Perfect fit
Worked great for a 1965 mercury thunderbolt 150hp
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2025
L
Verified Purchase
Lawrence Brown
Houston, US
★★★★★ 5
MerCruiser Replacement Parts
OEM quality MerCruiser Alpha 1 Gen1 replacement part. Everything you need and some things you don't because it's a universal kit that works for several models.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 19, 2025

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