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Out of all the spaces in your home, the bathroom is one that is most likely to be a breeding ground for mold. Even if you keep your bathroom clean, the moisture in the environment makes it fairly easy for mold to grow. Using mold-proof caulk when renovating your bathroom can help prevent mold from growing in joints or crevices. 

Whether you’re a DIYer renovating your own bathroom or a general contractor who wants to provide superior performance for your clients, Sashco’s mold-proof caulks are the smart choice for any bathroom space. Here are three reasons why you should use mold-proof caulk in your bathroom.

What is Mold-Proof Caulk? 

Sashco’s CleanSeal mold-proof caulk is designed specifically for use in moist environments, such as the bathroom and the kitchen. This caulk is water-resistant, and it also uses active enzymes to prevent mold from growing over time. 

Bathroom surfaces are consistently wet and create the perfect environment for mold to grow. If you use a caulk that isn’t water-resistant, water could seep into the caulk and actually cause mold to grow underneath the surface. Since you can’t see this type of mold, it is difficult to clean and can go undetected for a long time. 

Additionally, CleanSeal contains environmentally friendly enzymes that prevent natural oils from building up on the caulk and feeding into mold. These enzymes are designed to keep working for a long period of time and continuously keep your caulking mold-free. While there are other sealants on the market that claim to be mold resistant, they typically use mildewcides, which can lose their effectiveness over time. Many mildewcides are also harmful for the environment, whereas CleanSeal’s bio-friendly enzymes are much safer.

3 Reasons to Use Mold-Proof Caulk

Enhanced Flexibility

Over time, it’s normal for your house to move and settle. You may not notice it happening, but these shifts could actually cause your caulking to crack if you’re not using the right products. When your caulking cracks, it’s much easier for water to seep in and mold to start building up. 

While other caulks are rigid and can break when your house moves, CleanSeal is highly elastic and actually stretches with the building. This is because of its co-polymer construction, which keeps it flexible.

Proven Technology

CleanSeal uses proven anti-mold technology to keep your bathroom fresh and free of mold and mildew. This is because we use unique anti-mold enzymes, which you can’t find in any other caulking product. Instead of killing the mold after it grows, these enzymes actually prevent the mold from growing in the first place. The enzymes ‘eat’ the natural oils that feed the mold. 

Additionally, these enzymes are environmentally friendly and safe to use indoors. They stay active over time, so they will continue to prevent mold from growing years after application. This superior performance makes CleanSeal a great product for contractors. However, CleanSeal is also very easy to apply and clean up, so it’s equally good for DIYers who want to renovate their bathroom on a budget.

Superior Adhesiveness

Finally, CleanSeal mold-proof caulk is highly adhesive. This means that it creates a fully waterproof seal on any surface that you apply it to, which can prevent mold from growing inside. Additionally, this caulk won’t peel off over time, even with the consistent wear and tear that the bathroom gets. Since CleanSeal is so adhesive, you can scrub away at the tiles to get them clean without worrying about the caulking peeling off.

Choosing Your Mold-Proof Caulk

While there are many caulking products that claim to be mold-resistant, Sashco’s CleanSeal is a superior option because of its unique mold prevention technology. Not only can it prevent mold from growing in the years to come, but it provides superior adhesiveness and elasticity. It’s also very easy to apply and smooth out for a clean finish. 

If you need a mold-resistant caulk for other areas of your home, Sashco’s Lexel is another reliable option. Lexel is a rubber-based sealant that works on both indoor and outdoor surfaces. It has a clear, paintable formula that looks great and blends in with many different surfaces. It can also be applied wet or dry. 

Whether you need to renovate your own bathroom or you want to provide superior performance for your clients, Sashco CleanSeal is a great caulking product. Using durable and mold-resistant caulk for your bathroom can help keep your bathroom clean and healthy for years to come.

Bathroom caulk or sealant is meant to last a long time, just like any brand will tell you right on the tube itself. So why is it that bathroom caulk needs to be repaired or completely reapplied so often? Whether you’re a homeowner tired of looking at peeling caulk or a contractor getting calls from customers to re-caulk their bathroom yet again, you’re most likely frustrated that things aren’t working as they should!

Just as with anything else around the house, the well-paved road to long-lasting bathroom sealant is regular maintenance. While caulk is meant to be a long-term solution, using the wrong caulking product or forgetting to clean the caulk regularly will just lead to leaks and problems with mildew. Let’s take a closer look at bathroom caulk to learn how to maintain it over time.


Over time, wear and tear on your bathtub can cause the caulk to break down. However, you can actually repair your tub on your own with the right sealant. Not all sealants are created equal – you’ll need an option that’s easy to apply and will provide long-lasting performance. Sashco CleanSeal is the contractor’s choice for tub repair and other kitchen and bath projects. Here’s why CleanSeal is the most reliable option for DIY bathtub repairs.


Finding the right caulking product for the bathroom can be tricky. Bathrooms are warm, humid environments, so durability on its own isn’t enough – you need a caulk that is specifically designed to handle moisture. If you don’t use the right caulk on your bathroom projects, you could end up having to do short-term repairs, which can hurt your reputation and make your customers unhappy. Here’s what to look for in a great tub and tile caulk.


When you’re renovating a bathroom, aesthetics are often just as important as functionality. Many homeowners want to show off their beautiful tile, metal, or granite fixtures in the shower without visible caulk lines. However, they’ll still need caulking that will take the abuse of shower and tub environments. A high-performance clear shower sealant is a great solution to this problem.

Not just any clear caulk will work in the shower. Many caulks are advertised as being clear, but are foggy-translucent at best, often with a slight yellow or grey tinge. A caulk may even dry clear, but just is not up to the challenges of the bath. Ask yourself, “How can a truly water-clear sealant (when applied properly) change the game for me and my customer?”


Renovating a bathroom comes with plenty of unique challenges. As a contractor, you know how tough it can be to create a water-tight seal that will prevent mold and mildew from growing. You’ll need a tough, long-lasting caulk with water-sealing technology. Your caulking also needs to look great in the bathroom and be easy to use on any project that comes your way.


If you have ever remodeled a bathroom, you understand how challenging finding a product that works can be. Although a veritable army of caulk brands is on the market, it is surprisingly difficult to find one that seals gaps and joints around the tub and sink so that moisture and mold can’t get in. In some cases, the caulk looks great when applied but cracks or breaks in a matter of months—cue callback.


Whether it’s for a new bathroom install or a repair job, the nightmares that come with bathtub caulk jobs are all too familiar. It’s difficult enough to get a perfectly smoothed bead that doesn’t look messy or thoughtless, but even after application, caulk often provides more problems that contractors have to face: it cracks or zippers apart after curing, lets in moisture, and often does little to stop the growth of mold and mildew that can cause all kinds of other long-term disasters.


Whether you’re working in new construction or finishing up a remodel on a bathroom, caulk can be a real pain. Caulk applied around the shower faces a wide variety of stress factors that limit its longevity, which takes away from customer satisfaction and requires you to redo your best work over and over again for years down the road.