Model # 181251

Internet # 100678632

NP1 10.1 oz. Gun-Grade Polyurethane Sealants (4-Pack) Aluminum Grey

This item has been discontinued.
The Home Depot no longer carries this specific product.



Model # 181251

Internet # 100678632

Designed for application in most climates, the Sonneborn NP1 10.1 oz. Gun-Grade Polyurethane Sealants (4-Pack) offer good flexibility and can be used on concrete and masonry.

  • 1-component, solvent-based elastomeric polyurethane formula does not require mixing
  • Adheres to most materials with no primer required
  • Paintable and stainable
  • Mold and mildew resistant
  • Provides great flexibility to help keep moving joints tight
  • Easy to apply using a gun or a tool
  • ASTM C719 tested
  • UL listed
  • Subject to or will include a recycling fee in the following states: CA, OR

Info & Guides

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Color Family 
Dry to touch (min.) 
Paint Product Type 
Professional Paint Supplies & Values 
Pro Supplies 
Warranty / Certifications
Manufacturer Warranty 


Paint Product Type: Sealants
Review Rating: 4 & Up
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Rated 5.0 out of 5 by 7 reviewers.
Rated 5.0 out of 5.0 by Excellent product for it's intended use Second time I ordered this excepional product through Home Depot and both orders were delivered ahead of the projected delivery date. The product is highly rated for it's specific intended use and I have had excellent results in using this product. August 18, 2015
Rated 5.0 out of 5.0 by excellent For me this was an excellent buy. The NP1 Gun-Grade Sealant was easy to apply, as well as clean up with out a problem. March 10, 2015
Rated 5.0 out of 5.0 by great for everything used NP1 and Sel for years, as long as it stick, it will last almost forever. use this to glue tiles where regular thin set will not hold for long, due to vibration and cold weather expansion. for expansion joint( sidewalk and walls), when use correctly, will stop weed from ever growing again between cement floor/sidewall crack( like a permanent round up weed killer), caulk and hold similar and different material together. used on wet location like outside, bathroom, glue toilet to the floor. gap between baseboard/door trim to drywall( cost more than alex caulk, but guarantee not to redo them again(almost forever) patch nail hole on drywall, wood, you name it, it will hold.and the stingky smell are now gone, you should try the old years ago product, it smell for weeks, and too hard to remove from skin. August 13, 2013
Rated 5.0 out of 5.0 by great product this product was great,it was great to work with and sealed real well to the wall.It has been a few weeks since I applied it to the crack and we have had no issues since then. November 15, 2013
Rated 5.0 out of 5.0 by Sticky but did the job! Worked well for me ....you have to get it on right the first time because it is very sticky but really sealed the area well. October 15, 2013
Rated 5.0 out of 5.0 by works great and dependable This a great product, it can be applied to almost any substance, will last a long time and is very waterproof March 14, 2013
Rated 5.0 out of 5.0 by Works great so far! Works great so far from what we can see! I will be buying some more soon! February 21, 2012
  • 2016-05-25 T15:41:15.348-05:00
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