The suddenly appeared leak or moldy corners of the home bothers everyone.
To make a perfect repair of those, you need to pick the best caulk among thousands of choices.
When it comes to picking up the right caulk for your problem, it is a bit tricky and tiresome. But we have a solution for you!
The objective for which We're putting our hands together and writing the piece is to guide you to choose the best caulk for shower surround.
[If you do not have enough time to read this exhaustive buying guide, you can buy one from our top picks from the table below.]
A Brief on Caulk
Caulk is an adhesive used for sealing the corners and gaps around your house.
This is generally used in the shower, kitchen, door, and windows. Different types of caulks are needed for different places.
This low-cost material made our tasks easy to seal the corners and other gaps as well as to enhance the visual representation of our house.
Table of Contents
Our Best Shower Caulk Picks
For determining the best sealing products for shower surround available in the market, we've spent days researching and analyzing the products.
We've analyzed all the collected information thoroughly to make a piece which can guide you through buying the best one for fulfilling your needs.
1. Sashco 13010 Clear Lexel Adhesive Caulk
The Sascho Lexel Adhesive Caulk is one of the most popular and efficient caulk available in the market. It has survived almost every test by which we’ve picked the top caulking tubes for this article.
The caulk comes with super-elasticity that allows you to put the caulk in a moving place without any worry of further breaking or leaking.
This adhesive filler sticks to the surface firmly, making it one of the most abuse-resistant caulks available at a reasonable price point.
Also, It survives the abrasive cleaning tools and has the protection against scratches that makes it a great for the handymen.
People often search for a caulk for their shower floor, that can survive despite using rough and harsh cleaning chemicals. This caulk is the best bet for them!
This waterproof caulk sticks to the wet surfaces as well, and thus you need not wait for the wet area to dry out. A perfect fit for bathtub!
The waterproof coating allows you to use this product outside of your home at the monsoon too. So, if you need to repair things on monsoon, this is a go-to product for you.
It is made with ultra-clear adhesives with a great mold-resistant formula which protect its natural new looking color for a more extended period.
Plus, You can use this caulk as a replacement for adhesives as well. This caulk is more reliable than a chemically reacting adhesive as it can stick to the surface firmly as long as you don’t use caulk removing chemicals.
This all in one caulk doesn’t freeze at cold temperature thus won't break after the freezing winter is gone. The caulk comes with 10.5-ounce pack, which is a perfect fit for the standard sized caulking guns.
Highlights of the Product
2. Loctite 1515861 Polyseamseal Adhesive Caulk Review
The US-made Loctite Shower Caulk is making America great again! You’ve Rightly Guessed! This highly durable caulk is a made in USA Product.
The caulk is exceptionally optimized to use in the shower interior. It comes with the ultra sealing formula to seal any leakage or gaps without additional hassle.
It is a waterproof caulk and allows you to use in the wet and humid surfaces.
This waterproof tub specialist can survive both cold and warm water without any damage to it.
(But make sure the caulk is well placed and dried. The warm water temperature should not exceed room temperature. Pouring hot water can lead to the separation of the caulk from the surface.)
Plus, This tile sealant contains mildewcide that resists Mildew from sticking onto it. So, it keeps your floor healthy for longer period than usual.
The Loctite caulk is long-lasting and extremely flexible, which makes it one of the best caulk for the shower.
Highlights of The Product
3. Flex Shot Rubber Adhesive Bathtub Caulk Review
Can you guess the unique advantage of this bathroom caulk?
This caulk doesn’t need any caulking gun to apply!
If you are caulking in your own home or repairing little leakage, this caulk is the go-to item for you. You can save about 25 bucks of a caulking gun using the best bathroom caulk.
This rubber adhesive caulk won’t crack even if you apply it in a thick layer. So, compared to the other caulks, this one stands out when you have to fill a larger crack. You can use it in sandwich layers, one on top of another to have cover more depth.
This product from Flexshot is very flexible allowing the caulk to remain in places where tensional or contractional forces are common.
As it comes with a high quality mold-resistant formula, you don't require any additional treatments to keep the floor healthy and mold free. This rubber caulk perfectly seals the plastic and ceramic tub corners and give you the feeling of professional caulking.
Plus, this caulk is very handy for people who like to craft or decorate items with sticky caulks. Its tube and precise applicator ensures precise and drip free caulk application.
If you are looking for a caulking option for temporary usage, this one can do your job. It comes out easily in a rubber rope form when you apply right caulk removing compounds.
Another incredible feature is that you can reuse this caulk if the cartridge has some caulk left in it.
However, you can not use it in caulking guns. So, it's not feasible to use the caulk for a long period. That's why we don't recommend this caulk for professionals.
4. GE Silicone 2+ Window & Door Caulk Review
The GE Silicone-based caulk is our pick in the fast drying caulk category. This caulk is made from 100% silicone and entirely water resistant that makes it even more interesting.
It will survive both summer and winter when used in shower door. So, you can use this to protect your shower exterior from extreme sunlight or freezing cold.
As it is very flexible when dried, this tops the list for the best silicone caulks in the market.
This silicone sealant is permanent and a perfect suit for outdoor use. Thus, you don’t need to change the caulk each year from your outdoor shower.
This caulk is made following the ASTM C920 Class 25 specifications. The ASTM provides the standard of the elastomeric joint sealants allowing users to rely on it without overthinking.
This product guarantees protection against molds and mildew growth for a decade. So, you need not worry about cleaning this caulk for a whopping 10 years!
This caulk is ready for water after only 30 minutes of application. So, for making an instant repair in your busy shower, this fast drying bathroom caulk can help you a lot.
5. Dap 18128 Alex Plus Acrylic Latex Caulk
If you are looking for a paintable caulk for your bathroom, then this one will come at #1 against all other caulks of this list.
You can paint on this caulk after 30 minutes of application that allows you to do the painting and decorating work faster than ever.
This is another USA made caulking tube that comes with superb quality. The manufacturer made it mold and moisture resistant so that the caulk remains the same for a long time.
The moisture-free coating survives different types of painting chemicals and act as a shield against any kind of mild abuse on it.
The manufacturer also provides 35 years of durability guarantee. Though it doesn’t come with any documented paper works for the warranty, the claim clearly indicates that the caulk is long-lasting and well made for different weather conditions.
Plus, it complies with the ASTM Spec C-834-91 which authenticates its validity and effectiveness.
This caulk is white when it is first used and can be painted afterward for aesthetics.
6. Sashco 10016 Big Stretch Caulk
Saschco 10016 is another mindblowing invention. As its names suggests, the caulk is incredibly flexible. Rather than cracking in tensional force, it stretches.
This USA made long-lasting caulk dries fast, allowing you to do the work quicker and smoother. The fast-drying caulks are best for outdoor and flexible surfaces because of the uncertainty of the weather.
You’ll be surprised that you can use this sealant on metal to seal any crack on it. The caulk will work fine for temporary protection of the metal.
This caulk is also a paintable one but not as optimized as DAP 18128.
You can paint this sealant after seven days of applying it on the surface. You can see the difference now, Can’t you? 30 minutes wait period vs 7 Days! A huge difference, indeed.
7. GE GE284 Silicone 2+ Kitchen and Bath Caulk Review
If you’re looking to save a few bucks of the caulking gun, here comes the squeeze apply GE Kitchen caulk.
This caulk is clear and has minimal effect on the high-end metal finished works. It is 100% silicone, meaning the caulk is waterproof and handy for the wet areas.
The manufacturer claims it as one of the fast-dry caulks out in the market.
You can expose the caulk to the water within 30 minutes of the application, making it one of the best caulk for shower.
The fast dry formula is quite handy when you have to use the sink or bathtub faucet within a few moments of caulking.
This is a crack and shrink-proof caulk allowing the user to use it in the places with expansion and contraction behavior. It is ideal for a wide variety of areas in the kitchen and bathroom.
Since you can use this as a glue tube and do not need any caulking gun, you can place the caulk with ultimate precision.
It is claimed as a low odor, and low volatile organic compounds (VOC) caulk means you’ll not feel uncomfortable using this caulk.
The caulk will work with all its power even if it is exposed to extreme heat.
So, you can use this silicone made caulk on the outdoor also which is exposed to the direct sunlight.
8. Color Matched Caulk by Colorfast
Since we have published this article, we have got an enormous response from our visitors, and a significant number of you were asking for an exact color caulk review. So, here it is.
The Colorfast Ind. made caulk is one of our top 10 picks for the caulks and comes at number #1 when it comes to the versatility of colors.
The best thing about this colored caulk is its versatile color options. You get as many as 31 different color options on this.
Adding to that, this siliconized acrylic latex caulk is convenient for both indoor and outdoor usage, which made it one of the most used caulking tubes in the market.
It comes with a standard 10.3 oz. cartridge tube allowing you to apply the caulk with a caulking gun pretty easily.
If you are looking for both the essential features like mildew resistance and color options, this is a go-to for you. It also features moisture and UV protection which, in our opinion, is an excellent addition to the material.
You can buy from 31 color variants this caulk comes with to apply in your shower tile floor.
9. Tremco 116 Vulkem Polyurethane High-Performance Sealant
For the people looking for a perfect construction-grade sealant, this Tremco primerless adhesive is a great deal for them.
It features some unique characteristics that can not be found in any other caulks. Because of its unique features and application, it can't be used widely on any type of surfaces. That is what insisted us not to mention it at the top of the table.
This polyurethane sealant is one of the most flexible products in its category. The company claims 25% movement capability of this adhesive caulk.
Adding to that, you can use this caulk both indoor and outdoor, but you have to keep in mind one crucial thing. The surface where you are putting this sealant must be well ventilated for the best result.
Apart from that, its chemical vapor is a thing that must be taken into consideration when applying on an indoor surface. Make sure you do not need to reside there for at least a week after application.
A great feature of this caulk is that it is highly flexible and do not need any primer for using it.
Though it is one of the featureful products of its category, it falls behind for its horribly slow drying time. It takes 6 hours to dry up the upper layer and 30 hours for full dehydration.
Please note that this is not a regular caulking tube; instead, it should be used on masonry, precast, and other construction-related things.
10. MasterSeal NP1 Gray Polyurethane Caulk
The MasterSeal is one of the promising home improvement product manufacturer, and the polyurethane caulk manufactured by them is our number #10 of the caulking reviews list.
The flexibility it comes with is a thing you will be a fan of. It provides almost 35% flexibility when dried! Unbelievable?
This self-adhesive caulk is mold and mildew resistant giving you a tension-free sleep for a long time.
Though we liked all of its features and all can be compared to the best of the best caulk available in the market, the drawback it comes with is a concern for us.
Since it is incredibly adhesive and sticks to any type of surfaces, it messes too much. It is challenging to control the bead when you are not a professional and used to this kind of adhesives.
The difficulty in the use made us place this at #10. But you can certainly try this out if you want extreme adhesion with almost all of the features we have discussed throughout this article.
Best Shower Caulk Buying Guide
There are a lot of things out there related to the caulk and its application.
And you know what! Many people around the world pick the wrong one and end up saying, the caulk is a crap.
So, in this buying guide, We’ll show the exact method that We have used to pick the best one for this guide. Keep Reading!
1. Mold & Mildew Resistance
The primary feature I see in the packaging is that whether the caulk is mold resistant or not. When the caulk is used in the shower surround or bathroom, it often comes in touch with the water.
If the caulk is not smooth enough, the water will stick to the rough areas of the caulk and help the growth of mold. Mold makes the area unhygienic.
It will also be uncomfortable for you when you see the dark spots at the edge of the acrylic tub or shower.
So, the best caulk for shower surround needs to be extremely protective against mold. And when it comes to pipes and fittings close to the septic system, the caulk must fulfill this criteria too.
The other uses of caulk, such as exterior and decorative caulk, also demand this feature. But since those are not exposed to the water, the growth of mold on those will be much slower than the bathroom.
So, next time you pick a sealant for your shower surround, make sure it is mold and mildew resistant.
2. Water Resistance
This is an unskippable feature if you are planning to buy caulk for sealing a leakage or filling any broken area. Although most of the caulk out in the market come with this feature, you need to ensure the one you choose also is waterproof.
If your caulk is not waterproof, mold will grow on it very fast, and you’ll have to bear the burden of changing the caulk in a quick time. Ultimately leading to a significant burden on your wallet.
The caulk must be elastic so that it doesn’t break when it is in moving situations. If you’re picking up the caulk for the floor or a wall which is permanent in its place, then you can skip this test (if you want).
But when you intend to use that on the shower door or windows, your caulk must have the elasticity to survive the contractions and expansions. On the contrary, shower grout is needed for using on tile floors of shower and bathroom.
We recommend picking up an elastic caulk for non-moving places also. This feature protects the caulk from cracking or coming out in a small portion.
4. Heat & Cold Proof
This is a universal criterion for picking up the caulk. If you want the caulk for the shower or bathroom, you must see whether the caulk can survive both hot and cold weather.
If the caulk is not weatherproof, then it is very likely that you put the caulk this year and see that the caulk is coming out of the surface in the next year.
5. Caulk Application
As you can find two different types of caulk tubes in the market. One which needs a caulking gun to apply the caulk and the other which doesn't.
If you need to use the caulk for repairing a small portion of your bathroom, you should consider buying caulk tubes which do not require caulking guns to apply. These are called squeeze tube caulk.
But if you have a whole bunch of work or doing some serious load of works, you must have a gun to apply the caulk. In such conditions, you need to buy caulks that come in a standard-sized cartridge.
6. Color of The Caulk
Color is another important factor when you are repairing a small portion. You need to buy a caulk tube that comes in the same color as previously applied caulk and matches the color of the tile or sink.
Most of the caulks come in two color options, i.e., clear and white. If you want to go beyond these colors, you can consider buying paintable caulks or other colored caulks.
7. Caulk Drying Time
The fast dry is a must-have feature for the shower caulks. You can not restrict yourself from using the shower for a long period.
So, picking a slow drying caulk will not work for you. You need to pick a caulk that provides all the above features and dries fast. So that you do not need to wait for days to use the shower or bathroom.
8. Shower Caulk Price
When you are purchasing anything, it is a must to check if the price is reasonable or not.
The materials used in the caulks are easily found on our planet, and the production cost is meager. So, it is good to check the price if it is at a reasonable price point.
How Much Caulk Do You Need
This is a common and an important question for the people new to the caulking arena. 9 out of 10 people fail to estimate the proper usage of caulk for a project.
After reading this, you’ll be one of those who estimate the correct amount of caulk for a particular project.
The formula is the “size of the tube in milliliter / (depth of the caulk surface in millimeter x width of the caulk surface in millimeter)”= The Number of linear meters you’ll be able to caulk with a tube.
If I give you an example, that will make things crystal clear.
- The caulk tube is 250 ml
- The depth of the caulk surface is 8 mm
- the width of the caulk surface is 6 mm
So, the equation will be 250/(8×6)=5.21 linear meters can be caulked with a 250 ml tube with a width of 6 mm and depth of 8 mm.
N.B. You should consider 5-10% wastage when you decide on buying tubes of caulk.
Types Of Shower Caulk
There are about a dozen types of caulk available in the market. Each class has some unique features and some drawbacks. I’ll discuss most popular of them under this heading.
1. Acrylic Latex Caulk
This caulk has a nickname, the painters caulk. You can rightly guess now that this caulk can be painted which made this one the favorite caulk for the painters. This is the perfect shot for repairing small holes in any place. The type generally used in the interior building materials and wood.
This caulk can be painted right after putting it in the place which makes it the no #1 choice for the professionals.
2. Vinyl Latex Caulk
This is a similar type of caulk which we’ve discussed earlier. When the earlier one is easily washed away with soap and water, this can’t. Vinyl latex lasts longer than the acrylic and thus it is a pick for those who are building something permanent.
But as I said, every type has some drawbacks. It is not flexible like the acrylic one and thus can crack easily with expansion and contraction.
3. Silicone Caulk
You will suffer a lot of hassle finding a pure silicone caulk, most of the caulk manufacturer now uses unique formulas that mixes silicone with other addons to get better result in terms of durability, heat absorption and moisture resistance.
The silicone is extremely flexible and sticky, which made this a raw material of caulk manufacturing. These are waterproof, mold and mildew resistant, and have a remarkably long lifespan compared to other caulk types.
Where To Buy Caulk For Bathtub and Shower Surround
Oh! That’s an interesting topic. You can buy caulk from the market or lying in your bed! I’ll say how…
You’ll find this name in every ‘where to buy’ article, and this article is not at all different. The Amazon store is the world’s largest online shop who’s now expanding its business to offline also.
You can get your desired product, especially different types and sizes of caulk there with a customizable search engine of Amazon, which allows you to filter the products by price, seller, and ratings.
The Amazon website enables the buyer to compare different products with one another and see the reviews. You can rely on the Amazon product page reviews as the real customers have written those reviews. So, it is unlikely that you get a wrong product from a positively rated product.
The product page allows the visitor to know about every detail of a product, and if you’ve any question unanswered, you can leave that one for the seller to answer in some cases. Really a pleasant user experience!
eBay is another online marketplace from which you can order your desired caulk. They have more than 150 million active buyers across the globe, that show the credibility of the company in buyers' mind. So, you can go for that also.
They also offer consumer to consumer shopping, making them a bet for the people searching for a second or cheaper choice of the desired product.
Walmart is another leading e-commerce website finding a way to beat the other leaders of the industry. They also have versatile product variations, including different types and sizes of caulk and sealants.
Walmart shop is not much different from the Amazon store except its wide circulated shopping outlets. They also allow you to choose between the products wisely with their well-optimized website.
As they’re mainly based on the offline shopping outlets, you’ll see a significant difference in customer satisfaction between them and Amazon. But you can have hands-on experience from them which you can’t get from the other e-commerce giants.
Though there is not much to see in caulk shopping, you can certainly have the feeling of authenticity with hands-on experience.
4. Your Nearest Hardware Shop
Since caulk is a common home improvement product and requires often, you can find this item in your nearest hardware store. Though they won’t offer you the customer reviews and other benefits which you’ll get from the online stores.
They are the best choice if you want your caulk instantly. But if you want the perfect one after researching about the product, I would recommend you to go for the online option.
The invention of the caulk has changed many things across the globe on the construction works. This product costing you less than ten bucks can make a lot of tasks easy which you couldn’t handle with this money if it was not invented.
Thanks to the European People of 16th Century who left the formula of this impressive product for us.
The caulk made our task easier to seal things in bathrooms, showers, and other cermaic fittings.
In this buying guide, we’ve outlined the best caulking products available in the market for shower surround and tub.
We’ve selected these items with in-depth research on various factors and AB testing, which ultimately led the selection as one of the best on the globe.
If we missed anything or you want anything to be more clarified, don’t hesitate to leave a comment in the box below. We’ll answer your question As soon as possible.
Frequently Asked Questions About Shower Caulk
I’ve added some faq below, go through those to make your concepts clear.
1. What kind of Caulk is Completely Waterproof?
The Silicone Caulks are entirely waterproof. These caulks are perfect for wet places like the bathroom, shower, and tub. Apart from knowing, you should consider buying the best silicone caulk from the market for the high-grade result.
Make sure the manufacturer labeling the caulk as waterproof to be sure about this fact.
2. Can You Use Window & Door Caulk in The Bathroom?
This thing depends on the caulk you are using. As the silicone caulks are best for exterior uses like windows and doors, you can use these in your bathroom too.
Caulks are made by different formulas considering their uses in diverse places. So, if you’re planning to use the window and door caulk in the bathroom, you should see whether the caulk is mold resistant or not.
If the caulk is mold resistant and waterproof, you’re good to go.
3. How Long until Caulk is Waterproof?
Some manufacturers claim that their caulks are waterproof instantly when you put the caulk on the surface. But you’ll be disappointed with the outcome in most of the cases.
Fast dry caulks can be waterproof within an hour or two when the others can take up to 24 hours to be fully waterproof.
So, it is wiser to wait a night before pouring water on the freshly applied caulk.
4. What Kind of Caulk Do You Use for Baseboard?
Latex made caulks are the best for baseboard. These caulks stick to the baseboard quite nicely and have a lesser impact on the beauty of the interior.
See our take on best drywall sander to get an idea about sanding stuff too.
5. How Big a Gap Can I Fill with Caulk?
How big a gap can you fill with the caulk depends on the caulks you’re using and its strength. If the caulk is strong enough and can stick to the surface nicely, caulks can fill a gap up to an inch.
Though you can fill that much depth with the caulk, you’ll lose a lot of money buying caulks.
You’ll see the caulk is filling 1/6 inch depth in a regular press on caulk tube, it is recommended not to use caulks for filling the gaps larger than half an inch.
6. Does Caulk Expire?
Though the caulks can stick to the surface for a hundred years, caulk does go bad.
Caulks can go bad if it is not used before a year or two depending on its storage method and ingredients. So, for the best use of the caulks, use within the expiry period labeled on the packaging.
7. What Happen to The Bad Caulk?
As you’re surprised reading that the caulk can go bad within a year, you can be curious about the bad caulks.
When the caulks are expired, you’ll see the caulks are dried in the tube and you’ll not be able to apply those caulks on the surface. Some caulks can have a bad chemical odor after expiration, but most does not give you any clue about its expiration.
8. Which Caulk is Best For Shower?
As you’re aware that the caulks on the shower will be in touch of water frequently, the caulks for the shower must be 100% waterproof and durable.
Considering the moisture in the shower, it is evident that there will be a faster growth of molds if the precautions are not correctly taken.
So, the best caulk for shower must be 100% waterproof and has reliable protection against the mold and mildew growth. These two criteria are more or less familiar to each type of caulkings.
You can skip the waterproof feature if you’re sealing the ceiling of your house that will hardly be in touch with the water.
In our opinion, Loctite 1515861 is the most perfectly made caulk for the shower surround. See the review #2 for details about this.
9. Why Caulk Baseboard?
As I've discussed, the caulks are for filling the larger cracks and filling the gaps in between walls. When you place the baseboard on the home, you'll see there is a gap between the wall and the board.
The gap can cause to grow mold when it comes to the touch of moisture and dust. It is necessary to put caulk on gaps to protect the growth of mold.
If you think that the gap wouldn't produce mold and thus you don't need to put caulk there. I'm saying, You're going in the wrong direction.
The gap between the wall and the baseboard will look really weird. It can ruin the beauty of the room if the board and wall are not parallelly placed. So, it is indeed a necessity to fill the gaps with the perfect sealant for the protection of both your health and the beauty of the room.
10. What is the Consequence of Not Caulking?
As I said above, if you do not caulk, it is very much probable that you'll see the growth of mold in the gap within a few months.
Other than protecting the mold, the caulk tightens the bond between the parts. So, if you do not put caulk in the proper place where it is needed, the construction or improvement work will not sustain for long.
You'll see the gaps are increasing day by day and ultimately, two different sides of the gap are breaking apart.
11. Does Silicone Caulk Conduct Electricity?
Silicone is used as an insulator in electronics so that current does not pass through it. As par as silicone caulks applied in the house, these caulks do not conduct electricity.
But if you are insulating some high voltage line with it, this can act like a semi-conductor and pass-through electricity.
In home, silicone caulks will not conduct electricity rather will act as insulation. But for industrial or high-voltage places, you can’t know. It can conduct electric current.