TOPCRET – CLAY
Clay Plaster Bathroom: Style, Sustainability & Waterproofing
Think your bathroom can’t have natural textures, breathable materials, and modern durability? Think again. With Clay® by TOPCRET, your next bathroom renovation doesn’t have to choose between wellness, aesthetics, and practicality.
Clay plaster in bathrooms isn’t just a trend—it’s a shift toward cleaner air, softer spaces, and seamless finishes that calm the mind and resist water. Curious? Let’s explore why Clay® is the game-changer your bathroom’s been waiting for.
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Why Clay in the Bathroom?
Redefining What's Possible: Clay in Wet Areas
For years, clay plaster was off-limits for bathrooms—too sensitive to moisture. But Clay shatters that myth with a dual-system finish that includes Hydro+, making it waterproof before sealing. That’s right—you can now use clay in showers, backsplashes, even full wet rooms.
Introducing Hydro+: Waterproof Before Sealers
Most waterproof finishes are synthetic, sealed with chemicals or require constant maintenance. Clay® with Hydro+ is naturally breathable and prepped for water, eliminating the need for toxic treatments while keeping your walls healthy and dry.
Benefits of a Clay Bathroom
VOC-Free & Breathable: A Healthier Washroom
Bathrooms are often filled with humidity and synthetic materials. Clay® changes that. It’s VOC-free, naturally breathable, and helps regulate humidity—perfect for preventing mould and stale air.
Seamless from Floor to Wall
Tiles have grout lines. Paint peels. But Clay creates a continuous surface from floor to wall, delivering that sleek, spa-like finish every modern bathroom needs.
Natural Insulation & Comfort
Clay doesn’t just look good—it feels good. It provides a natural warmth underfoot and reduces noise, creating a peaceful space for everyday rituals.

Design Possibilities with Clay
Textures Made for Spa-Like Ambience
Clay® comes in four textures:
- S (Smooth): sleek and modern
- M (Medium): balanced and soft
- L (Layered): tactile and earthy
- XL (Rustic): bold, expressive texture
Each finish pairs beautifully with stone, wood, or minimalist bathroom furniture, offering that “wrapped in clay” feeling designers love.
Colours Inspired by Nature
Over 60 nature-inspired shades, from warm terracotta to calm stone greys, let you create the atmosphere you crave. Prefer custom? The “Paint to Sample” programme means your bathroom can match your exact tone.
Installation & Durability
No Demolition Needed
Renovating doesn’t have to mean tearing down walls. Clay® can be applied over existing substrates, including tiles, making it perfect for quick yet high-impact upgrades.
Built to Withstand Daily Moisture
Unlike traditional plasters that crack or fade, Clay stands up to the realities of daily use. It’s even more durable than microcement in wet areas—yes, really.
Clay vs Other Bathroom Finishes
Tiles, Cement, and Tadelakt
Tiles: prone to mouldy grout and cold aesthetics.
Cement: durable but industrial, and not breathable.
Tadelakt: beautiful but requires burnishing, waxing, and expert labour.
Why Not Tiles or Cement?
Tiles are classic—but prone to grime and maintenance. Cement? Too cold and industrial. Clay offers a warmer, more tactile alternative with no compromise on durability.
Why Clay® Wins the Comparison
Clay® brings the handcrafted look of tadelakt, the durability of cement, and the natural benefits of raw earth—without the complexity. No wax. No polish. No compromises.
| Feature | Tiles | Tadelakt | Clay® |
|---|---|---|---|
| Waterproof | ✅ | ✅ | ✅ |
| Breathable | ❌ | ✅ | ✅ |
| VOC-Free | ✅ | ✅ | ✅ |
| Maintenance | 🛠️ Moderate | 🔧 High | 🔁 Minimal |
| Installation Ease | ✅ | ❌ | ✅ |
FAQs
1. Is clay plaster really waterproof enough for a bathroom?
Yes—Clay® with Hydro+ is waterproof before sealing. It’s designed for high-moisture spaces like showers, backsplashes, and bath walls.
2. Can I install Clay® over existing bathroom tiles?
Absolutely. Clay® can go over various substrates, reducing renovation mess and saving time.
3. What finishes are available for bathrooms?
You can choose from four unique textures and over 60 colours. Each one delivers a unique tactile and visual experience.
4. How do I maintain a clay bathroom?
Just wipe it down—no special products needed. It’s designed to last and look good with minimal upkeep.
5. Is it safe for homes with kids or allergies?
Yes! Clay® is VOC-free, non-toxic, and improves indoor air quality—ideal for sensitive individuals.

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Success Stories
Real projects, real results.
What our clients say
- Topcret helped me doing a repair on my existing floor, and went the distance to get a good result. I would definitely use them againGillian D.★★★★★ (opens in a new tab)
- Jack and the team at Topcret were top-draw. We're beyond pleased with the finished look, but also very impressed with the experience. From our 1st meeting to the aftercare, Topcret were nothing but professional, knowledgable, friendly and flexible. Highly recommend.Sam S.★★★★★ (opens in a new tab)
- Topcret and Juan in particular went above and beyond. Juan worked long days to finish the project as soon as possible, and used his technical knowledge and expertise to problem-solve some of the issues we had with previous tradesmen's mistakes. So happy Topcret could match the paint colour we wanted and that the result is more of an even finish than the typical microcement mix of shades (which they can do as well - we just didn't want that look). Delighted with the result and would definitely use them again. Thank you so much!Isabel D.★★★★★ (opens in a new tab)
- We had our kitchen and bathrooms done in our house in Sydney. The team was very friendly and efficient and the end result was exactly what we wanted. Can’t recommend them enough!Carolina R.★★★★★ (opens in a new tab)
- Topcret’s attention to detail and overall quality of their work is exceptional. I am pleased with the results and would highly recommend Topcret to anyone in need of their services.Rodrigo T.★★★★★ (opens in a new tab)
- Jack has been incredibly helpful in answering all my inquiries since I’ve first visited the showroom. He also made sure that all the technical queries that were put forth from the architects were addressed and proposed solutions to better fit the material. I couldn't be happier, and would recommend 100%.Liza M.★★★★★ (opens in a new tab)
- I recently hired Topcret to finish the renovation on my kitchen and couldn’t be happier with the results. The transformation they've made is just incredible. Provided high quality work with great attention to detail. I would recommend Topcret to anyone looking to make their spaces more attractive!Francesco N.★★★★★ (opens in a new tab)
- Love the product and great customer service. I decided to go for a warm terracotta and Top Cret were very happy to accommodate to develop my own colour.Jacqui P.★★★★★ (opens in a new tab)
- Really happy with the quality of work Topcret have provided for my home. They did 2 Bathrooms, floors and walls which were finished in just 3 days. Jack was extremely helpful throughout the process, answering the many questions I had for him. Great product/ service, I will be recommending to everyone.Tommy J.★★★★★ (opens in a new tab)









