You’ve come to the right place to find the best bathroom caulk. It might take a while to re-caulk your bathroom, but if you have the right caulk tube and tools, like a putty knife and a wet finger, it’s easy to make a seal that keeps water out and stops damage.
A lot of people have problems with mold growth, especially in bathrooms. The best way to stop mold spores and mold growth is to use new caulk. Let’s get started!
1. Gorilla 100% Silicone Sealant Caulk
Gorilla Waterproof Caulk & Seal is a silicone sealant that is made to keep water, air, and moisture out. It can be used inside or outside because it is water-ready in 30 minutes. It doesn’t grow mold or mildew, so it stays safe in wet places for a long time. Over time, this sealant will not shrink, crack, or turn yellow.
Why it’s a Great Choice
- Features: Waterproof, mold & mildew resistant, 30-minute water-ready, won’t yellow, shrink, or crack.
- Ideal for: Kitchens, bathrooms, windows, doors, marine, plumbing, and more.
- Rating: ⭐⭐⭐⭐⭐ (4.5/5 stars from 18,145 reviews).
- Top Benefits: Provides a strong, durable seal, versatile for multiple surfaces, quick water exposure time, and long-lasting protection.
2. GE Advanced Silicone Caulk
GE Advanced Silicone Caulk is a silicone sealant that is 100% waterproof and made to make a strong, long-lasting, and flexible seal in wet places like bathrooms and kitchens. It doesn’t grow mold or mildew, so it protects against water damage for a long time. This caulk sticks to a lot of different surfaces and doesn’t crack or shrink when the temperature changes.
Why it’s a Great Choice
- Features: 100% waterproof, 5X stronger adhesion, shrink- and crack-proof, 30-minute water-ready.
- Ideal for: Kitchens, bathrooms, sinks, countertops, and other wet areas.
- Rating: ⭐⭐⭐⭐⭐ (4.6/5 stars from 1,868 reviews).
- Top Benefits: Long-lasting flexibility, reliable protection from mold, and excellent adhesion to most surfaces.
3. Flex Caulk
This is Flex Caulk, a flexible, waterproof, and weatherproof sealant that can be used inside or outside. Its hybrid polymer formula sticks to almost any surface, dry or wet, and doesn’t shrink, crack, or break easily. It’s great for many things, can be painted, and protects against water, air, and UV damage for a long time.
Why it’s a Great Choice
- Features: Waterproof, weatherproof, UV & chemical resistant, adjustable trigger-flow nozzle, no caulk gun needed.
- Ideal for: Bathrooms, showers, windows, doors, RVs, roofs, and more.
- Rating: ⭐⭐⭐⭐☆ (4.3/5 stars from 1,205 reviews).
- Top Benefits: Easy to apply with no mess, precise bead control, and reliable adhesion to wet or dry surfaces.
4. Red Devil 0826 100% Silicone Sealant
This high-performance glue, Red Devil 100% Silicone Sealant, can be used inside or outside. It makes a flexible seal that won’t crack, peel, or shrink and is resistant to weather. This makes it perfect for many uses. This silicone makes sure that the bond is strong and lasts a long time, whether you’re sealing windows, doors, or gutters.
Why it’s a Great Choice
- Features: Weather-resistant, permanent flexibility, 50-year durability guarantee, excellent adhesion to various surfaces.
- Ideal for: Windows, doors, skylights, trim, gutters, and home repairs.
- Rating: ⭐⭐⭐⭐⭐ (4.5/5 stars from 1,801 reviews).
- Top Benefits: Resists cracking and shrinking, provides a water-resistant seal, and offers long-term performance with a 50-year guarantee.
5. Loctite Polyseamseal Tub & Tile Adhesive Caulk
Loctite Polyseamseal Adhesive for Tubs and Tile Caulk is a strong glue and sealant that can be used on tiles, tubs, and other surfaces. This caulk can be used on many different surfaces and sticks well to ceramic, porcelain, glass, and more, making a strong bond that lasts. It also doesn’t let mold or mildew grow, which makes it great for bathrooms and kitchens that get a lot of moisture.
Why it’s a Great Choice
- Features: Mold and mildew resistant, waterproof, low odor, and permanently flexible.
- Ideal for: Tubs, tiles, backsplashes, and repairing loose tiles.
- Rating: ⭐⭐⭐⭐⭐ (4.5/5 stars from 1,481 reviews).
- Top Benefits: Strong adhesive strength, durable performance, and safe for wet environments.
6. Dap 18526 White Kwik Seal Plus
The high-performance adhesive caulk Dap Kwik Seal Plus is made for use in the kitchen and bathroom. This paintable, easy-to-apply sealant makes a bond that is waterproof and flexible that won’t crack or peel over time. It’s perfect for wet areas because it protects for a long time and wipes up quickly.
Why it’s a Great Choice
- Features: Paintable, low odor, crack-proof guarantee, easy water cleanup.
- Ideal for: Kitchens, bathrooms, tubs, showers, and sinks.
- Rating: ⭐⭐⭐⭐⭐ (4.6/5 stars from 400 reviews).
- Top Benefits: Ensures a durable seal, flexible with excellent adhesion, and resists cracking or peeling.
7. Sashco Big Stretch Caulk
Sashco Big Stretch Caulk is a high-performance sealant that is very elastic and flexible, which makes it perfect for places that move around naturally. This waterproof sealant can be stretched up to 500% of its original size and won’t break or crack over time. In addition to protecting for a long time, it makes painting easy afterward.
Why it’s a Great Choice
- Features: Extreme flexibility (stretches up to 500%), waterproof, professional-grade adhesion, paintable.
- Ideal for: Window frames, door gaps, siding, concrete surfaces, and home improvement projects.
- Rating: ⭐⭐⭐⭐⭐ (4.7/5 stars from 218 reviews).
- Top Benefits: Prevents cracks, durable waterproof seal, and offers superior stretch and flexibility to withstand natural home movement.
8. Momentive RTV103 One Part Silicone Sealant
The one-part black silicone sealant Momentive RTV103 can be used for many things and can fill and seal gaps or cracks up to 1/4″ wide. Because it’s like a paste, it works well for both vertical and overhead applications. This product sticks well to many different surfaces and lasts a long time both inside and outside.
Why it’s a Great Choice
- Features: Paste consistency, adheres to metal, glass, ceramic, and plastics, temperature resistant from -75°F to +400°F.
- Ideal for: Sealing cracks and gaps in various industrial, automotive, or household applications.
- Rating: ⭐⭐⭐⭐☆ (4.3/5 stars from 56 reviews).
- Top Benefits: High-temperature resistance, FDA and USDA compliant, flexible, and durable.
9. GE Supreme Silicone Caulk for Kitchen & Bathroom
GE Supreme Silicone Caulk is a high-end, 100% waterproof silicone sealant made for kitchens and bathrooms that needs to work well. It protects against mold and mildew better than other materials because it sticks seven times stronger and stays flexible over time. It’s perfect for sealing places that are likely to get wet, and the results will last for a long time.
Why it’s a Great Choice
- Features: 7X stronger adhesion than standard silicone, mold-resistant, permanently flexible.
- Ideal for: Kitchens, bathrooms, and high-moisture areas; adheres to a wide range of materials.
- Rating: ⭐⭐⭐⭐⭐ (4.6/5 stars from 268 reviews).
- Top Benefits: Waterproof, mold and mildew resistant, dries in 30 minutes, won’t discolor metal finishes.
10. Paistely White Silicone Caulk
The Paistely White Silicone Caulk is a high-performance sealant that is waterproof and can be used in kitchens and bathrooms. It forms a strong, long-lasting seal around sinks, countertops, showers, and bathtubs that keeps mildew out. This caulk doesn’t crack easily and sticks well, so it’s great for places that get wet or humid.
Why it’s a Great Choice
- Features: Super strong adhesion, waterproof, anti-crack and anti-shrinkage, mildew-resistant.
- Ideal for: Bathrooms, kitchens, showers, bathtubs, sinks, and countertops.
- Rating: ⭐⭐⭐⭐⭐ (4.6/5 stars from 44 reviews).
- Top Benefits: Long-lasting waterproof protection, easy to apply with provided accessories, no yellowing over time.
Final Thoughts
Making sure your bathroom has a watertight seal is important to stop water damage and mold growth. Getting the best bathroom caulk takes time, but the solution will last for a long time. Putting on new caulk the right way will keep leaks and mold spores away. It’s worth the work to keep mold out of the bathroom, even if you have to re-caulk later.
To get the best results, smooth out seams with a wet finger and follow the manufacturer’s instructions for sealing around tiles to get a perfect seal and keep them from getting damaged.
FAQs
What is the best caulk to use in the bathroom?
Mold and mildew-proof caulk is the best kind for the bathroom. If you want a solution that will last, pick a caulk made of silicone or acrylic. It can make a watertight seal and keep mold and water out.
Is silicone or caulk better for showers?
Most of the time, silicone caulk is better for showers than regular caulk because it seals well against water and mold. Make sure to ask the grout manufacturers what they recommend for sealing around tiles to stop water from getting in and mold from growing.
How often should you recaulk a shower?
Every couple of years or whenever you see damage, you should caulk your shower again. This process is time consuming, but it makes sure that there is a strong seal that keeps water out of the bathroom and stops mold from growing.
What is the best sealant for showers?
The best sealant for showers is a high-quality silicone caulk that can resist mold and mildew. Look for products that promise to prevent mold spores and create a watertight seal for long-term protection.
How can I clean up after caulking?
After applying caulk, use a wet rag to clean up any excess, and for a smooth finish, run your wet finger along the seam to ensure a neat and uniform application.