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4 oz. Block (screw cap with brush)

Brand:
Hercules
SKU:
15703
Rating:
(19)
Q&A:
(1)
4 oz. Block (screw cap with brush)
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$9.63 each
In Stock
In Stock
Get 24 Fri, Jun 12
Order by today, receive Friday
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Volume
4 oz.
Product Highlight: Max Pressure (PSI)
12000 (Hydraulic) MAX PSI
Product Highlight: Temperature Range (F)
-50°F - 450°F

Description

Features:
  • All-purpose, tough, pliable seal for joints, valves, flanges, and gaskets
    Puts joints into service in minutes
  • An excellent gasket seal
  • Sets up quickly and dries to form a very tough, yet flexible seal which will not harden, crack, crumble or shrink.
  • Seals old or worn fittings
  • Ideal for pumps, tanks and equipment carrying steam, water, oil, gasoline, fuel oil, hydraulic fluids, natural and LP gas (vapor state), anti-freeze, refrigerants except ammonia, lubricants, glycerin, solvents, brine and other gases, liquids and chemicals (see spec sheet for specifics).
  • For use on all metals, including galvanized steel, black iron, aluminum, copper, brass, stainless steel, and on PVC, ABS, and CPVC plastics (for use on specific brands of CPVC pipe, verify suitability with pipe manufacturer).
  • Provides leak-proof resistance to high pressure, temperature, expansion, contraction and extreme vibration. Grit-free; non-separating, distinctive non-runny consistency.
  • Can easily be cleaned from tools and hands with isopropyl alcohol or Hercules for Hands towels.
Specifications:
  • Temperature range: -50° to 450° F (on steel pipe)
  • Pressure: 12,000 psi (hydraulic), 2600 psi (gas)
  • Conforms to: Mil. Spec. Mil-S-45180 D. Blue.

Specs

Volume:

4 oz.

Max Pressure (PSI):

12000 (Hydraulic)

Temperature Range (F):

-50°F - 450°F

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Product Reviews

4.84 out of 19 reviews
93% would recommend this product
4.84
out of 19 Reviews
93% would recommend this product
WRITE A REVIEW
5 star
89%
4 star
5%
3 star
5%
2 star
0%
1 star
0%
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Most Liked Positive Review

It works

I hate tapered thread connections, I do everything by the book, a wrap of teflon tape in the right direction, in back of the engagement threads, supplemented by some pipe compound a little further back. 50% of my connections weep. I don't even know why they make that stuff anymore. Anyway, sometimes you have no choice, and after suffering through a weeping expansion tank connection (which had to be located below the hwt, meaning it had to be drained), I tried this. Voila, no more leaks. Note I let the product cure or dry (or whatever) for as long as possible, overnight is good. Also, I tried Grrip with equal success, not sure there's any difference. Finally, the brush in the can stinks, it's a bloody mess. I cut it off and strap a shortened art brush to the can with a hair scrunchy, much cleaner. This stuff sticks to surfaces like enamel paint.
VS

Most Liked Negative Review

Didn't stop my leak

I had a leak were a 1" copper MNPT screwed into a stainless ball valve. It only runs about 15 to 20 psi. It constantly drips. It originally had a few wraps of 'teflon' tape and leaked. So I tightened some more. Still leaked. Disassembled, cleaned and tried this Block. Let sit about 12 hours after reassembly. Still leaked. It is to the point that I do not want to tighten anymore. May try permatex, or replace the Cu fitting. I suspect that the copper fitting is defective. I am not recommending this product based on my personal experience. It may be OK, but didn't work for me.
Showing 1-10 of 19 reviews

Great product!

Great stuff! I highly recommend it!
Vic
Valparaiso, IN
9 months ago
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Great stuff

Highly recommend
Vic
Northwest Indiana
2 years ago
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Great product

This stuff really works where other sealers could not create a seal that worked. One application on each side gave me the seal that I needed and was able to get my tractor back up and running again. I will going to this product first from now on.
Ole Rusty
Lexington NC
3 years ago
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Best Dope Period

Use this on every gas install. Better than any other dope I've ever used.
DB
BRLA
3 years ago
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Great product

Works like it charm. No leaks. Ever!
Amateur plumber
Dallas
3 years ago
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Yes

Are use this product to install a gas water heater worked awesome would recommend to other people
Bull
Casa Grande
4 years ago
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Great product, but a mess to use

I have used the "blue goo" for years. It is a great product for pipe thread and also gasket type surfaces, but it gets on everything and can be a real mess. However, it does clean up with rubbing alcohol. What I really like is that the base solvent is alcohol instead a petroleum product. I am sometimes working on closed systems that have rubber gaskets that specifically say no petroleum products because they can damage the gaskets, so that is when I specifically use this product. One problem is that this will set hard after a few years and can be real pain to clean off an old joint if you need to do a repair job years later. So I will use a "soft-set" type of pipe dope if I think I will be taking the joint apart in the future.
Jackson
Pennsylvania
5 years ago
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Good stuff

Worked great on leaking hose bib(small hole drilled when anti siphon was removed)
Ebear
Mb nc
6 years ago
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I will buy this product again

it's very helpful for plumbing work
Mike
NYC
6 years ago
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good stuff

Sealed leak on hydronic baseboard with damaged threads
Martin
Minnesota
6 years ago
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Product Q&A

1 Question
1 Question
ASK A QUESTION

Q: I have pvc pipe that connects into a cast iron pipe. There is a small leak somewhere in the connection. It has been sealed with a rubber waterproof sealant once but am wondering if this wouldn't be a better product. Can this be used over another product? Also, can it be used over a rubber material as well as pvc and cast iron? Are there any stores such as Menards, Lowes, Home Depot that carry your product?

Asked by Pinky 11 years ago

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Verified Author and ReplyVerified Reply- Supplyhouse Staff

yes it can, how effective it is will depend on how big the leak is, yes it can. Not sure who else carries these products.

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