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Universal Waterproof Adhesive Repairing Leaks and Filling Cracks

47 reviews
100% of buyers enjoyed this product! 1963 orders
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This product can automatically flow into the depths of cracks, with high elasticity, crack resistance, frost resistance and sunlight resistance, and strong adhesion.

The construction is simple. After opening the product package, it can be automatically leveled by extruding directly to the crack.

Different from ordinary water-based waterproof coatings, this product can penetrate deep into the root of cracks and completely solve the problem of water leakage.


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Amazmerch (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

47 reviews
100% of buyers enjoyed this product!
5 stars
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1 star
verifed buyer
5 Jun 2023

I had a home chore to fix a relatively inexpensive dressmaker's dummy for my wife. The metal welds securing a slip ring (connecting stand with body) broke free, and thus the dummy looked like a drunken sailor (to be accurate, I've never actually SEEN a drunken sailor -- I was US Army myself -- , and my apologies to my forebears who were faithful swabbies in the US Navy!). I saw this product online -- the "AB" part of its name attracted my attention -- and I followed the directions. Very easy, applied with a popsicle stick, it cured in 6 hours and was solid as a real metal weld after 24 hours. Mind you, this is not part-to-part glueing, but rather vertical-to-horizontal welding -- a true test. The dummy is now back to full dumminess, and my wife is happy.

verifed buyer
5 Jun 2023

This stuff isn't a miracle and I wouldn't use it to "weld" my engine block. But I think it's just about the best epoxy ever. It's been my go-to epoxy for years - for when I need a really strong bond. It's inexpensive and it's given "added longevity" to many household/garage items that I own. I try to make it a point of always keeping some of this stuff around.

verifed buyer
2 Jun 2023

Use this If u need to bond or repair something. I used a few kits to repair elk scull plate and horns back together.

verifed buyer
29 May 2023

Fast shipping product is just like you would expect

verifed buyer
27 May 2023

STRONG. It its quit strong and also seals out moisture quite well. Wood broke before glue. Quite pleased with product.

verifed buyer
25 May 2023

Great! Fixed my nutcracker perfectly!

verifed buyer
24 May 2023

Easy to use and they did the job well. They might be a little pricey for this application but they worked well.

verifed buyer
24 May 2023

The epoxy dried hard and strong. Perfect for the crown I was working on.

verifed buyer
22 May 2023

Great for all my crafts, will be buying more

verifed buyer
18 May 2023

Building a bird feeder using PVC molding, but could not use fasteners because the feeder needed to be substantial and able to secure several pieces together...The PVC material is spongy and would not hold nails, brads, staples, or screws of any kind...Could not even use bolts with nuts because the material would split and give way with the slightest force....This epoxy set fast and holds tight under pressure. I recommend this store.

verifed buyer
17 May 2023

Highly recommended

verifed buyer
14 May 2023

It was excellent and very fast delivery thank you for your good treatment

verifed buyer
14 May 2023

It's a great thing. I'm very satisfied. I recommend the store.

verifed buyer
13 May 2023

Used this to fix a broken street lamp arm. Lamp had been knocked over in windstorm. Was asking around what it would cost to get arm welded back on but a couple people said welding wouldn't work on lamp because it would just melt cheap Chinese metal. They suggested this- and it worked for pretty cheap! I haven't tried to do pull ups on the lamp to test strength, but so far it's held up. I also used the excess mixture to lock bolts into concrete so I could hang up a heavy hose rack on it, they are firmly locked in place now!

verifed buyer
11 May 2023

Exhaust still holding and 6 months ago, I used AB weld to cover a large (about 12 inch) tear in the flexible door bellows of my front load washer. It is securing a length of old inner tube over the tear and no leaks. Great stuff

verifed buyer
6 May 2023

As is the photo already used works very well thank you

verifed buyer
2 May 2023

Good Product. Fast shipping. Good Seller. Good Luck in the future!

verifed buyer
1 May 2023

I use AB everywhere normal people use almost anything else. It's holding car bumpers, fixed a trampoline, filled holes in my truck bed and smoothed a gouged shaft ( no oil leak now). AB works in moisture, also under water. I even attached an exhaust gas temperature sensor bung (the round fitting it screws into) directly to the pipe just ahead of the converter. I intended to weld it but it's on solid and going strong. Way hotter than the label says it can take, plus vibration. Amazing. Love it but wish it came in even bigger tubes.

verifed buyer
29 Apr 2023

A good product, very convenient to use and must be within reach for general repairs

verifed buyer
26 Apr 2023

This product was perfect for my application. I had to attach a metal picture frame wire to the back of a ceramic tile in order to hang the tile on a wall. I used the AB according to the package directions and it worked very well. Since this product is warranted at a tensile strength of 3960 psi and my tile weighs 8 oz, I think it may have been a bit of overkill. (I estimate that each side of the wire was covered by about 0.5 square inches of the mixture to a depth of about 1/8".) This epoxy is the recommended bonding product for metal to ceramic. I created a small 1/4" diameter loop on each end of the wire to increase the bonding area. It is important to clean the two surfaces with acetone or alcohol to remove all grease. The metal needs to be abraded with a file to create a rough surface. The ceramic was unglazed on the back and therefore was already rough and porous. The two components of the product must be mixed very thoroughly and in 1:1 proportion by volume. It takes 24 hours to get a complete bond.

verifed buyer
21 Apr 2023

I had a crack in one of the flat parts of the garage door which made the entire door sag when opening and caused the opener to think something was blocking the door when closing. I wasn't sure if epoxy would even be strong enough to bond the piece together but also withstand the daily stress of opening and closing the door. It was my first step in trying out other methods so I went for it. Well to make a very long story short, it worked great. The bonded part is sadly stronger than the metal that it had bonded (cheap garage door) and now my garage door opens and closes like before.

verifed buyer
15 Apr 2023

Very good product

verifed buyer
14 Apr 2023

While AB offers a veritable Vegas buffet of bonding products, this steel-reinforced epoxy is the industry's most powerful, versatile, and elite-performing, and is presented here in a uniquely high volume "professional size" that maximizes its great value.

verifed buyer
13 Apr 2023

perfectly , I did it ,quality very good Thank so much Hong

verifed buyer
12 Apr 2023

As a Mechanical Engineer I had occasion to use or test virtually every adhesive known to man. Each type has a pretty well defined set of uses. There is a seemingly endless variety of epoxies, but, out of all of them, I have not found one that can match the performance of AB. I am awed each time I use it. It will bond nearly anything with a strength unequaled by others. However, there is one feature that may be a deterrent for some jobs. It is black. The iron powder in its compound provides its bond strength but its color, and may not look so good where aesthetics are important.

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