Internet #100153125

Model #158062

Store SKU #554499

Store SO SKU #1000059631

Megaloc 8 oz. Pipe Thread Sealant

  • Pipe thread sealant attaches metal pipes and fittings together
  • Non-separating formula remains glued to the pipes
  • Safe to use pipe dope with water lines
  • See More Details

Frequently Bought Together

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Price:
$1398

Product Overview

The Hercules 8 oz. Thread Sealant is a high-performance sealant designed for use on all plastic and metal pipes and fittings. The sealant wipes clean from hands and tools with a dry rag. Not recommended for lines carrying concentrated acids, alkalis, ketones and oxygen.
  • Odorless formula is non-separating, non-flammable and non-hazardous
  • Seals plastic and metal pipes and fittings
  • Performs over a range from 50°F to 400°F
  • Safe for drinking water lines
  • In-lid applicator
  • Sets soft with no cure time required
  • Wipes clean from hands and tools and washes out of clothes
  • Resists hardening and cracks
  • Hydraulic resistant to 12,000 psi
  • Withstands gas pressure to 2,600 psi
  • California residents

Info & Guides

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Specifications

Dimensions

Container Size (oz.)
8
Product Depth (in.)
2.68
Product Height (in.)
3.75
Product Width (in.)
2.68

Details

Dry time (hours)
1
Maintenance, Repair & Supplies Product Type
Pipe Cement, Primer & Cleaner
Pack Size
1
Returnable
180-Day

Warranty / Certifications

Manufacturer Warranty
1 year

Questions & Answers

9Questions27Answers

Can this be used for ac refrigerant lines?

Asked by Igor July 18, 2020
1
Answer

Yes.

Can you use this on pool pipes that are leaking from the motor?

Asked by ALEXANDRE June 30, 2020
1
Answer

Yes. Megaloc will not seal a leak without redoing the joint and using the sealant on the male threads before joining.

Is this safe to use on rubber?

Asked by Dave December 18, 2019
1
Answer

No it is not safe for natural or synthetic rubber. For rubber, we recommend using Hercules Real-Tuff.

Will this work to seal head bolts that pass thru water jackets?

Asked by Bruce February 7, 2019
1
Answer

This compound is designed to seal threads on pipe. Please reach out to Oatey Technical with more application specifics. 1-800-203-1155.

So will this or will it not hold and lock threads together on a nut and bolt setup ?

Asked by ED2322 December 26, 2017
5
Answers

No- Megaloc does not "set-up" or harden and I don't recommended it as a substitute for a lock washer (metal or polymer)

Do you need to use teflon tape with the pipe dope?

Asked by Geo August 17, 2017
7
Answers

No, I originally used teflon, but I had leaks.

Can this be used on fuel lines ?

Asked by Dan July 12, 2017
3
Answers

Not recommended as the fuel may dissolve the sealant and transport the sealant vehicle into small orifices intended to disperse the fuel (whether liquid or gaseous)

How long is the dry time ?

Asked by Guillaume April 25, 2017
5
Answers

The sealant does not fully dry, it stays pliant but forms a seal.

Can this be used on Stainless steel?

Asked by jeff February 27, 2017
3
Answers

I used Megaloc on threads cut into galvanized steel pipe; see no reason not to use it on stainless steel threads

Customer Reviews

  • 4.5
    out of 33 reviews
  • 87% recommend this product
5star-icon24
4star-icon5
3star-icon1
2star-icon0
1star-icon3
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Showing 1-10 of 33 reviews
Great product. Do job well. I used on water pipes...
Great product. Do job well. I used on water pipes
by syxov37
I’m a DIY and do a lot of plumbing around my houses. I like using Teflon tape, but sometimes it’s...
I’m a DIY and do a lot of plumbing around my houses. I like using Teflon tape, but sometimes it’s difficult to apply tape to pipe threads where the plumbing is hard to reach or in tight quarters where there is little room to circle the pipe or fitting with tape. This liquid sealant worked just fine to seal threads for a copper fitting connection at my toilet near the floor and it was much easier to apply with just a few brush strokes, than wrapping tape around the fitting. Winding a small piece of tape around a fitting can be frustrating sometimes, and this sealant is a good and effective substitute. I like that there is a small brush applicator attached to the container cover. The brush applicator was pre-bent at an angle, but I found it easier to use a straight brush, so during the application I simply straightened it out with my fingers. The sealant itself is blueish in color and has a chunky, gritty consistency that I had to brush-out to assure good coverage. However, it worked fine in place of tape, and I there was no leaking. This is a good product to have around, since it is easy to use and apply. Any spillage is easy to clean with a rag.
by JAY
3 people found this helpful
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by Tung
Worked as advertised, I didn’t have any issues with it....
Worked as advertised, I didn’t have any issues with it. I recommend this product.
by John
Stuff seems to work and seal much better than the Teflon tape I have been using for the past 40 y...
Stuff seems to work and seal much better than the Teflon tape I have been using for the past 40 years
by JR
Used with Teflon tape (first apply the tape, then this...
Used with Teflon tape (first apply the tape, then this sealant), this provides a leak-proof seal after only hand tightening
by schwemf
by ZAVNET
Bad product.
I tried this sealant on my multiple pipes and water kept leaking like crazy. The second time, i let it stay for 3 days to see how it goes and it never seal the pipe at all and water leakage all over the place. i do not recommend this.
by Temessgen
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Showing 1-10 of 33 reviews