Best Toilet Caulks

Small cracks and spaces around your sanitaryware, such as toilets, sinks, bathtubs, and shower trays, can be a reason for the growth of mould, odor, and germs. These cracks can also make your bathrooms look ugly. You cannot use regular silicone sealants to fill these cracks as they don’t possess waterproof properties. Instead, you need a toilet caulk that is specially designed to serve this purpose. Even if you don’t have a toilet flapper you can easily get help from these caulks.

How to pick the best toilet caulk?

Even though all toilet caulks look similar, most of the available ones in the market will not be a good investment. Therefore, here we have a small guide that can help you buy the best toilet sealant for your bathroom –

Anti-mould

One of the main advantages of using a toilet caulk is that it protects small cracks by preventing mould growth. Therefore, you need to ensure that the product that you are buying possesses anti-mould properties. If it doesn’t, then you will end up replacing your caulk every couple of months or so.

Weather Proof

Most adhesive weakens out when exposed to sun, heat, or water. Buying such sealants is a waste of time and money as you might end up replacing and fixing them again and again. Therefore, make sure that the sealant you are buying is waterproof as well as capable of serving in different weather conditions. You can use any toilet tank cleaner on this caulk, it won’t lose the glue.

VOC content

Volatile organic compound or VOC content refers to the toxicity of a sealant. Higher VOC concentration can be harmful to humans, and therefore, you should always consider buying a toilet caulk with as low VOC content as possible. The good thing is that most home-use sealants have very low VOC content than those available for industrial usage.

However, some sealants, such as polysulfide sealants, have a higher amount of VOC content. Therefore, you should avoid buying this type of sealant.

Staining

Some sealants, such as silicone ones, tend to leave stains when applied to materials such as white marble and stones. When buying a sealant, make sure that you pick the right product suitable for the substrate. You can also consider buying a toilet caulk that has a similar color to your toilet’s interior.

Versatility

Another thing to consider is the quality of the product you are buying. Make sure to buy a sealant that is capable of both indoor and outdoor usage. So that, in case you have some extra adhesive, you can use that for other purposes. If you have a portable car toilet, you can still use these caulks for the same reason on your toilet.

Flexibility and hardness

Even though your toilet will be fixed on the floor, it shakes a bit when you sit on it. If your primary concern is to prevent seepage of water into the cracks around it, the best toilet caulk for the toilet base would be the one that has some flexibility.

However, note that when the flexibility increases, the hardness of the sealant decreases. I recommend buying a sealant for the toilet base that has proper hardness with sufficient flexibility.

Ease of application

The next thing that you need to consider is how easy it is to install the caulk around your toilet base. Incorrect installation would lead to the failure of the seal. You can find several toilet brushes for the cleaning job.

Best Toilet Caulk of 2021

After reading the buying guide, you must have understood that buying a toilet caulk is not easy. There are a lot of things that you need to look after.

However, to help you guys making the right choice, here we have prepared a list of the 5 best toilets caulks that you can buy right now –

Sashco 10016 Big Stretch Caulk

This toilet caulk from Sashco is one of the most affordable yet super effective toilet caulk you can buy from amazon. At less than $7, you get a 10.5-ounce bottle, which is more than sufficient to caulk around your toilet base.

Our Opinion: It also comes in a clear coat so that, in case you don’t find a caulk matching your interior, you can grab this one.

The best thing about Sashco sealant is that it comes in 12 different colors. Therefore, if you want the sealant to blend with your bathroom interior, this product from Sashco can be a great choice.

Another good thing about this product is that it is pretty flexible. Therefore, you don’t have to worry about sealant getting cracks after some rough usage. It is also waterproof and can easily be used for outdoor needs as well.

UniBond Anti-mould sealant

UniBond’s Anti-mould sealant is one of the most popular and highly trusted caulks that you can use to fill gaps around your toilet. This toilet caulk delivers long-lasting protection, but it comes at a higher price. A 10 ounces cartridge of this sealant comes at around $30, making it one of the costliest bathroom sealants on the internet.

That said, if your budget allows buying such a highly-priced product, I would surely recommend you to get this one. That means, once it dries, you don’t have to worry about mold growth at all.

Our Opinion: This toilet caulk comes with anti-mold properties.

Along with that, it is also waterproof and can easily survive in warm and humid environments. After applying, this sealant just takes around 15-20 minutes to dry completely.

Gorilla 8050002 Clear Silicone Sealant

Gorilla silicone caulk is another affordable caulk that you can buy online. The thing that makes it a good choice over Sashco Big Stretch is that it takes 30 to 60 minutes to dry completely. Therefore, if you are looking for a quick yet budget-friendly solution, this product from Gorilla can be a good choice for you.

This is made of silicone that makes it a good sealant for both outdoor and indoor usage. Plus, it has waterproof and weatherproof characteristics.

Our Opinion: The only issue with this product is that it is available in a white and translucent clear color that tends to get yellow over time.

But that is not a deal-breaker as it offers the best value for money. Additionally, it also prevents the growth of mould and mildew. Also, it is pretty flexible and can easily survive for a couple of years if applied correctly.

Loctite Polyseamseal Tub and Tile Adhesive Caulk

The next adhesive caulk that we have got on our list is from Loctite. Loctite is a pretty popular name that makes a bunch of adhesive, putty, and other home improvement and industrial products. This sealant offers a pretty sturdy and flexible grip, making it the best silicone caulk for the toilet base.

This adhesive caulk is designed to work with almost anything, including toilet base, bathroom tubs, tiles, glass, enamel, aluminum, wood, plastic, stainless steel, etc.

Our Opinion: It has a very low VOC formulation, making it a safe choice for humans and animals.

The only deal-breaker would be the pricing. But if you don’t mind spending some extra bucks on a good quality toilet caulk, this can be a good choice. The product prevents mildew and mould growth as well as is waterproof.

GE Advanced Silicone Sealant

Lastly, we have one more budget-friendly yet very strong toilet caulk on our list. The key highlight of this product is that it is way more flexible than the regular sealants while offering a quite stronger, highly durable adhesion.

This product is 100% made of silicone material, making this sealant 100% waterproof and usable in different weather and temperature conditions. Therefore, you can use this product for both indoor and outdoor usage.

Our Opinion: Another good thing about this product is that it gets dry in just 30 minutes.

Plus, the low VOC formulation makes it pretty safe for indoor home-usage. The only issue with the product is that it tends to get yellowish with time.

FAQs

What is the best caulk for installing toilet?

Though different types of sealants can be used to fill the crack around your toilet, silicone sealants are considered the best primarily because silicone sealants offer quite flexible and sturdy adhesion.

What is the best way to caulk the base of a toilet with a caulking gun?

• First of all, remove any old caulk.
• After that, clean the area where you are going to apply sealant with the help of a dry brush.
• Apply masking tape around the area where you want to apply the caulk so that the caulk won’t scatter around your floor and look messy.
•  Lastly, apply the sealant properly, press it firmly with your finger, and remove the masking tape.
• Let it dry for an adequate time.

What is the best caulk for securing a toilet to the floor?

The best caulk to secure your toilet to the floor depends on a bunch of factors. However, if your budget allows, go with the UniBond Anti-Mould Sealant, as that is one of the best toilet sealants you can buy online.

Closing Comments

Among all the products mentioned above, I would recommend buying UniBold Anti-mould sealant to caulk around your toilet base. It is the best sealant that you can buy right now. However, it is a bit of a pricey product, and if your budget doesn’t allow you to spend that much, you can go for the Sashco Big Stretch Caulk. You can look at other products as well if they fit your budget and fulfill your requirements.