4 Best Epoxy For Toilet Tank Repair | Reviews & Buyer’s Guide

In addition to that, toilet tanks have a handle for flushing and two valves, which also tend to break down and crack fairly easily. However, you can seal the cracks yourself without much difficulty.

So, now, if you’re wondering how to fix this problem, you could get some epoxy glue that will effectively do the job. But are you unable to figure out which one to get? Don’t worry, because we’ve got you covered with this guide on the best epoxy for toilet repair, so read on to know more!

Listed below are the 5 best epoxies for toilet tank repair from our list:

• J-B Weld. J-B Weld 8277 is a versatile, quick-setting epoxy that works on various materials. It impresses with its ability to create firm bonds underwater and heat resistance up to 350 degrees Fahrenheit.
• Pratley Epoxy Glue for Porcelain. Pratley 85139 excels by offering a quick-setting epoxy adhesive that efficiently binds different materials, including glass, providing a clear finish.
• Loctite. Offering a shock-resistant solution, Loctite 1919324 binds different types of materials effectively and stands out with its underwater application and curing feature.
• PC Products PC-11 White Epoxy Paste. This epoxy offers durable, water-resistant fixes for porcelain toilets. Its no-drip consistency ensures easy and clean application in various orientations.

Are you looking for the best epoxy for toilet tank repair? We've got you covered! Here is a list of the 4 best epoxies for toilet tank repair that can help you fix your toilet tank quickly and easily:

1. J-B Weld - Best for Fast Setting

First up on our list is the J-B Weld 8277, which is a super-efficient glue that can fix porcelain surfaces, ceramic, plastic, concrete, and even marble. It can be used to plug holes and seal gaps in a toilet tank, which makes it handy to have around. What’s more, it can also help fix drains, fuel tanks, and underwater objects.

This is a two-part epoxy stick that can be mixed by hand and is ideal for repairing a broken toilet tank. Once both the compounds are mixed together, the epoxy takes only 25 minutes to set and one hour to cure. As such, we love the speed and efficiency of this glue, as well as the smooth white finish!

In addition to that, the epoxy has a tensile strength of 1300 PSI, and it can resist extreme heat too, up to 350 degrees Fahrenheit. It’s also non-reactive with chemicals like hydraulic fluid and petrol once it is fully cured.

We were impressed by how this adhesive can make firm bonds even underwater, which means that you can use it for marine repairs too. It’s also been certified by the NSE as safe for contact with drinking water which makes it super non-toxic and reliable.

Though our ultimate experience with the product was undoubtedly excellent, we did run into some issues. We received a defective product twice in a row, after which we lodged a strongly-worded complaint with customer support. After that, we got a functioning unit, but we did have some unnecessary hassle at the start.

2. Pratley Epoxy Glue for Porcelain - Best for All Material Use

The final entry on our list is the Pratley 85139, a two-part epoxy that can repair your porcelain toilet effectively. It comes in an easy-to-use tube and can also be used with materials like glass, ceramic, stone, and concrete that are commonly found in homes.

To begin with, we liked how quickly the glue sets in and dries and also has great adhesive strength. If you’re wondering how to fix your toilet problems without calling upon a professional, then this is a great tool to use. 

Apart from the above, the adhesive can also be used when runny glue is needed for a matching joint. This is a versatile product that can also join together objects made of glass, with the best part being that the epoxy won’t show.

Moving on, this is a waterproof epoxy. Therefore, you can use it for repairing kitchen wares without worrying about water tampering with the bonds. Besides this, we dig into the design of the tubes that make it easy to dispense equal amounts of epoxy constituents.  

The adhesive was effective but a hassle to apply properly. We needed to repair fine scratches on our toilet tank and used a brush to apply the glue. Unfortunately, the glue was too tacky to be applied in small amounts, and that’s why we don’t think this epoxy is great for use with smaller cracks.

3. Loctite - Best for Water-Resistant Repairs

The Loctite 1919324 is a versatile epoxy that can be used to bind different kinds of materials together. It is compatible with glass wood, plastic, and metal in addition to ceramic and porcelain and provides a shock-resistant adhesion that stands the test of time. In addition to this, its volume is 25 ml, and it gives a smooth white finish.

One of the features we really liked about this product was that even though it is supposed to be a marine epoxy, it does a great job of repairing toilet tanks and other ceramic objects. It is packaged in a syringe, which makes it convenient to use since it dispenses the same amount of the adhesive each time.

In addition to that, once the glue dries, it is extremely durable and can even be drilled into, with no signs of cracking. Moreover, it is solvent-resistant and can even be sanded or cleaned up easily without any damage.

Another cool thing about this adhesive that we liked is it can be applied and cured even while it's below the water. This makes it truly resistant to water and eliminates the need to drain out water before applying the adhesive.

This adhesive performed as we expected it to and did a great job of repairing our toilet tank. However, we did notice that once dry; it's a little shiny apart from being white. That worked for us since toilet tanks are usually a glossy white too, but that may not work with other products that need to be fixed.

4. PC Products PC-11 White Epoxy Paste

This two-part epoxy is the perfect solution for those who need a way to undertake porcelain toilet repair such that it lasts. The product has a volume of 60 ml and comes in a soothing off-white color that blends perfectly with tank lids. Moreover, it is packaged neatly in an easy-to-use tube.

If you need to repair a toilet tank crack or scratches on the toilet bowl, you need something that is water-resistant yet effective. The PC Products PC-11 is the right fit for the job because it can be applied in wet, dry, and even underwater areas. Moreover, it is equally resistant to both fresh and saltwater.

In addition to the above, it has a thick consistency, which impressed us because this ensures that the glue won’t sag or drip whether applied horizontally or vertically. What’s more, if you want a white finish to your repair, which is free of cracks and stains, then this adhesive is an ideal pick.

We were also impressed by how fast-acting the epoxy is. It takes just 35 minutes to set, and up to 8-15 hours to cure, which is justified due to the industrial-grade strength of 1710 PSI that it provides.  

When we used the product, it gave perfect results, and we were pleasantly surprised. However, reviews online state that the effectiveness of the product depends from batch to batch, and not all of them cure within the set period, or even after, for that matter. 

What is the Best Epoxy for Toilet Tank Repairs?

This section features an in-depth comparison of epoxy products designed for toilet tank repairs. The table below provides a comprehensive evaluation of essential attributes, including Volume, Type, Strength, Waterproof capabilities, Versatility, and Curing Time.

Buying Guide for the Best Epoxy for Toilet Tank Repair

According to us, a number of factors must be kept in mind before getting an effective glue to mend your toilet tank. Toilet tanks are made of porcelain, and from our experience, most kinds of porcelain are waterproof but have porous surfaces.

This means that water seeps in through the otherwise glossy surface. That’s why we recommend getting an epoxy suitable for a toilet tank and waterproof; otherwise, it’ll be a waste of money and effort!

Apart from that, the other factors that must be considered are:

1. Tensile Strength

Not all manufacturers reveal the tensile strength of the epoxy in the product description or on the label. However, we strongly advise getting an epoxy that is strong with high tensile strength because porcelain objects can have a lot of weight. If you end up getting glue that doesn’t have much strength, you’ll go back to square one when it falls apart!

This is why we recommend the J-B Weld epoxy glue, because of its industrial-grade strength, which will ensure that it works on your toilet tank.

2. Viscosity

The thickness of the epoxy should depend on the kind of repair you’re thinking of carrying out. If you need to fix hairline cracks, we recommend thinner glues that flow and are easier to spread.

However, if you’re trying to fix larger cracks, then glue that is compatible with wide surfaces and has a thick consistency would be a better pick. This is why we recommend the PratleyPratley because once it is kneaded, it thickens and is perfect for sealing cracks that are significant in size.

3. Cure Time

The quicker the cure time the easier it will be to fix your toilet and make it operational once again. Ideally, a quick fix time translates into about 1 hour with 25 minutes of set time, these are the figures promised by the J-B Weld Waterweld in this guide, and thousands of reviews back it up too.

4. Water Resistance

If you are going to choose another product than the ones on this list, make sure the epoxy you choose is waterproof and resistant to the chemicals in the water. Look for an epoxy designed for use in wet environments and specifically formulated to be resistant to water and chemicals to ensure your fix is solid for years and years to come.

What is epoxy for toilet tank repairs?

Epoxy for toilet tank repairs is a specialized adhesive formula designed to fix leaks and cracks in your toilet tank. It is often made from two parts—a resin and a hardener—that mix to create a strong bond that can withstand the constant presence of water.

How to apply epoxy for toilet tank repairs?

Applying epoxy for toilet tank repairs involves several steps.

• Start by draining the toilet tank completely and dry the area thoroughly.
• Lightly sand the area around the crack or leak to enable better adhesion of the epoxy.
• Mix the resin and hardener according to the manufacturer's instructions.
• Apply the epoxy to the crack or leak, paying special attention to deeply fill in the damaged area.
• Allow enough curing time as recommended by the manufacturer before refilling your tank.

How long does it take for epoxy to dry on a toilet tank?

The drying time for epoxy on a toilet tank can vary depending on the brand and formulation, typically, it could take from several hours up to 24 hours or more. Always ensure to check the manufacturer's instructions.

Can I use epoxy for all types of toilet tanks?

Yes, you can use epoxy for all types of toilet tanks – porcelain, ceramic, plastic, etc. However, always check with the manufacturer's guidelines because some epoxies may work better with certain materials than others.

How permanent are toilet tank repairs with epoxy?

The permanency of toilet tank repairs with epoxy can be highly durable but is also dependent on proper application and usage conditions within your bathroom. It may last several years in most cases but consider replacing your tank if the damage is severe or frequently recurring.

Is using a Repair Kit better than using an Epoxy?

Choosing between using a Repair Kit or an Epoxy will largely depend on the specific damage situation of your tank. Repair kits often include epoxy and can provide more comprehensive solutions for bigger cracks, while standalone epoxy can be more suitable for smaller, simpler repairs.

Can using epoxy for toilet tank repairs lead to further damage?

Using epoxy for toilet tank repairs should not lead to further damage if used correctly. Always ensure to thoroughly clean and dry the damaged area, apply the epoxy as per instructions, and allow proper curing time. If the damage is severe or the crack continues to extend even after repair, consult a professional plumber.

Can I use Epoxy to attach bathroom fixtures?

Yes, Epoxy can be used to attach bathroom fixtures as it forms a strong bond. However, ensure that both surfaces are clean and dry before application of the adhesive, and always adhere strictly to the manufacturer's instructions.