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Block(TM) - Screw Cap With Brush

Free shipping on orders over $29.99

$13.00

$ 6 .99 $6.99

In Stock
  • Threadlockers and Gasket Sealants
  • Adhesives, Sealants and Tape
  • Country of Manufactury: United States
  • Commercial Brand: Hercules


Gasket Sealant, All Purpose, High Performance, 4 oz., Blue, Temp. Range -90 Degrees to 450 Degrees F, Specific Gravity 0.85, Viscosity Paste, Flash Point 170 Degrees F, Begins to Harden Immediate, Substrates Aluminum, Black Iron, Brass, Copper, Stainless Steel, Galvanized Steel and On Plastics Including PVC and CPVC, Flexible Seal Which Will Not Harden, Crack, Crumble or Shrink, Improves Seal on Threads, Standards Meets Mil Spec Mil-S-45180 D, Includes Brush in Cap


GROK
Reviewed in the United States on March 15, 2025
This is no longer carried by any of my local suppliers. Have been using it for 20 years. It solves problems nothing else can since it's essentially gasket cement. Make sure you have rubbing alcohol available - keep a bottle of hand sanitizer with it - since it is alcohol soluble and a pain to clean up without alcohol. It will stain your hands for a week other wise. Hope it doesn't disappear from the market place forever. Also, make sure you close it up carefully after use or it will slowly set up in the can over time. Use alcohol to clean the threads first or you will need a channel lock to open it the next time you need it.
Louise Edge
Reviewed in the United States on August 31, 2024
works great. i use it on all pipe threads
Rich Hanna
Reviewed in the United States on November 21, 2024
Was mad that this is not the stuff I thought I was ordering, but research confirmed it will work.
DGold
Reviewed in the United States on April 14, 2024
I bought this because of a you tube repair video. I used it with some success but I'm not sure it's as good or better than a good Teflon paste. Really messy to work with and a nightmare to get off your hands and tools.
Retired Old Guy
Reviewed in the United States on February 23, 2023
I had a compressed air fitting that I couldn't get sealed up. Watched a video that recommended this product. So I gave it a try. Sure enough - this did the trick. Good purchase.
MLloyd
Reviewed in the United States on January 18, 2022
I have been using this thread sealer for over 22 years and have assembled 10's of thousands of NPT threaded joints with it. Rarely will I get a leak. I have used this alone and also with PTFE tape. The reason for the tape and the sealer used together is that most of my NPT joints are plastic Polypropylene/PVC/CPVC and Kynar. Sometimes plastic NPT joints/threads can be a little sloppy from manufacturer to manufacturer so using both in this scenario fills in the larger gaps and creates a leak free joint pretty much every time. In my experience it will NOT harden rock hard but will set up and remain pliable pretty much indefinitely . Once set up you can touch it and it will not want to stick back on you. This thread sealer does not have the little bits of PTFE in it like some of the other brands of thread sealer. The color of this stuff is a bluish green and it has an exceptionally smooth thick consistency. If properly applied it will not run. If you let it sit in the can for extended periods you will need to mix it with the included in-can brush before use. If I get it on my skin I use a strong alcohol like isopropyl or others to clean it off. The only annoyance I find with it is the rubber seal in the cap sometimes sticks to the rim of the can and comes out of the cap upon opening. I remedy this by putting a little bit of adhesive in between the inside of the metal cap and then put the rubber seal back in. I have tried other thread sealers but this is my go to product. Excellent! Hope it helps. Cheers!
BL
Reviewed in the United States on April 24, 2022
Worked better than the tape. Pipe must be dry, though.
william
Reviewed in the United States on November 20, 2021
I thought it was a bigger can.
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