Béton ciré : complete kits for floors, walls, bathrooms, and kitchens
Bring your projects to life with our polished concrete kits. Whether for floors, walls, bathrooms, kitchens, terraces, or stairs—easily create surfaces that reflect your personal style.
- All-inclusive kit
- Free delivery on the purchase of a kit covering 10 m² or more
- Illustrated guide and tutorials
- +120 colors
Which rooms do you want to transform?
Bathroom
Kitchen
Floor & wall
Stairs
On tile
Exterior
Before / After?
Discover the projects created by our customers, who have transformed their homes using our polished concrete kits.
Each project was brought to life using our products and guidance from our team.
TRADIT Vs ISY
Which solution is right for you?
Because every project is different, we have developed two distinct product lines to precisely meet your needs.
Whether you are looking for the simplicity of ready-to-use concrete or the unique, nuanced character of traditional concrete,
you will find the perfect range—tailored to your skill level and your specific project.
Powder to be mixed
Designed for those who love tactile materials, the TRADIT range allows for playing with color nuances and creating unique, marble-like effects beneath the smoothing trowel.
- Unique effects & nuances
- Adaptable for areas starting from 2m²
- Cost-effective solution for large surfaces
- Durable, eco-friendly, and easy to maintain
- Covers existing tiles—no demolition required
- Versatile for various surfaces and settings (bathrooms, kitchens, etc.)
- Small-scale projects as well as large-scale construction sites
- A dynamic, personalized textured effect
- Complete renovations
- For professionals or those with relevant experience
Ready to use
The ISY range simplifies the application of polished concrete, thanks to its pre-prepared products. It is an ideal solution for carrying out your project with ease.
- Quick installation, no mixing required
- Simplified application, saves time
- Smooth, uniform finish
- Covers existing tiles—no demolition needed
- Durable, eco-friendly, and easy to maintain
- Versatile for various surfaces and spaces (bathrooms, kitchens, etc.)
- Wide range of shades (90)
- Suitable for outdoor use
- DIY, beginners, and/or professionals
- Projects starting from 10m²
- Complete renovations
- A smooth, modern, and uniform finish
- Seamless indoor/outdoor continuity
Choose your shade
Click on a color to see it in a real-life setting. A physical color chart is available for free—the cost is refunded when you place an order.
The most popular polished concrete kits
Bathroom, kitchen, shower, countertop, flooring, or tile renovation: discover our customers' preferred solutions.
Universal Béton Ciré Bathroom Kit
Béton ciré on Tiles - Universal Bathroom Kit
Béton Ciré Kit for Showers with Waterproofing
Béton Ciré Kit for Worktops and Splashbacks
Béton Ciré on Tiled Kitchen Surfaces – Universal Kit
Béton ciré Floor Kit - High Protection
What is polished concrete?
Before you get started, discover what makes polished concrete unique, where it can be applied, and why it has become one of the most popular decorative finishes.
Definition
Polished concrete (béton ciré) is a decorative coating composed of cement, resins, and pigments, applied in a thin layer (2 to 3 mm). Due to its minimal thickness, it can be installed on a wide variety of surfaces, whether for new construction or renovation projects.
With its mineral-like appearance and seamless finish, it allows for the creation of continuous surfaces that are as aesthetically pleasing as they are easy to maintain.
Uses
Polished concrete is suitable for most projects, both indoors and outdoors. It can be used to create bathrooms, showers, kitchens, countertops, floors, walls, staircases, or even terraces—all using the same finish.
It can be applied to many existing surfaces—such as tile, concrete slabs, cement screeds, placo, or cellular concrete—following appropriate preparation.
Renderings & finishes
Polished concrete allows for a wide range of finishes. Depending on the chosen shade, the application technique, and the varnish used, each project develops its own unique character.
You can achieve a smooth or textured surface, a matte, satin, or glossy finish, and an appearance that is either uniform or more nuanced. Each project is unique, naturally bringing out the material effects characteristic of polished concrete.
Our expertise
For over 20 years, we have been designing polished concrete kits in France that combine professional quality with ease of application.
Made in France, they come with guides, videos, and expert advice to support you from the very first trowel stroke to the final protective coat.
Pros and cons of béton ciré
Polished concrete offers numerous everyday advantages. Like any technical surfacing material, it simply requires that certain steps be followed to achieve the expected result.
The benefits
4 strengths
A seamless surface
A solution for both new builds and renovation projects
High durability
A finish that adapts to your preferences
The drawbacks
4 points to know
Essential surface preparation
A gentle approach to maintenance is preferable.
Observe the drying times
Protection tailored to your project
How do you apply polished concrete?
Check out our application videos for installing our polished concrete (béton ciré) over tile or concrete, using either the ISY or TRADIT product range.
Common errors
Polished concrete is accessible to everyone, provided that a few essential rules are followed. Here are the most common mistakes and our tips for avoiding them.
Apply to an unsuitable surface
Applying polished concrete over an unstable, damp, or poorly prepared substrate.
- Detachment and blistering of the material
- Appearance of cracks
- Peeling of the coating
- Clean substrate, moisture content (<2%)
- Stable substrate with no active (progressing) cracks
- Primer applied that is suitable for the substrate
Neglecting preparation
Trying to move too quickly by skipping cleaning, priming, or leveling.
- Poor adhesion
- Surface irregularities
- Risk of detachment
- Appearance of cracks
- Thoroughly clean the substrate
- Fill joints and repair defects
- Treat cracks
- Apply a mesh or fiber-reinforced strip
Failure to observe the drying time between coats
Cover with a layer of concrete, or apply the varnish to a coating that is still damp all the way through.
- Moisture entrapment
- Whitening or an opaque haze beneath the varnish
- Formation of air bubbles
- Appropriate ambient temperature
- Adherence to drying times between each step
- Surface perfectly lightened and uniform
Un vernis de protection mal appliqué ou non adapté
Omitting the pore filler, or applying the varnish in a layer that is too thin, contains gaps, or is applied using the wrong roller.
- Susceptibility to staining
- Loss of resistance
- Roller marks
- Premature wear
- Choose the protection suited to your intended use
- Follow the recommended number of coats
- Check whether a pore filler is required
- Apply using a cross-coat technique with the appropriate tool
- Ensure the work area is well-lit
An application in an extra layer
Seeking to apply a heavy load in a single pass, either to fill defects or to speed up the process.
- Crazing during drying
- Formation of air bubbles in the concrete during application
- Loss of control over textural effects
- Risk that the concrete may never dry
- Spread the material using a smoothing trowel
- Use a steady, even motion without overloading the surface
- Apply in 2 thin coats
- Adhere to the recommended coverage rate (m²/unit)
Stack the odds in your favor
Find all our tips, tutorials, and guides to support you before, during, and after your project.
See complete kitsGuide Polished Concrete
Download our free guide to help you choose the right kit, prepare your surface, and ensure a successful application.
Frequently asked questions
Can polished concrete be applied over tiles?
Oui, et c'est même l'un de nos projets les plus demandés ! Pas besoin de déposer votre ancien carrelage : s'il est sain et bien collé, vous pouvez appliquer directement un béton ciré dessus. Chez Harmony Béton, nous avons développé des kits béton ciré sur carrelage pour la cuisine, la salle de bain, les sols ou les murs. Ils comprennent les produits de préparation adaptés, notamment un ciment colle qui permet de reboucher les joints avant l'application du béton ciré. Vous repartez ainsi sur une surface lisse, sans engager de gros travaux de démolition.
What is the difference between polished concrete and microcement?
Polished concrete (*béton ciré*) and microcement are both thin-layer decorative coatings that offer a similar visual appearance. The primary differences lie in their formulation, particle size, and application methods.
In recent years, techniques have also emerged that use tile adhesive to create a "concrete-look" finish. While the result may be attractive at first glance, these solutions are not designed to serve as a substitute for genuine polished concrete. They offer neither the same mechanical performance nor the same long-term durability—particularly in damp rooms or areas subject to heavy use.
What is the price of polished concrete?
The price of polished concrete (béton ciré) depends on a number of factors. It varies based on the surface area to be covered, the existing substrate (such as tile, a concrete slab, or a screed), the specific room (bathroom, kitchen, terrace, etc.), the product range chosen (ISY or TRADIT), and any additional items required—such as surface preparation or protective products, or tools like a roller or a smoothing trowel, if you do not already own them. For this very reason, we offer kits tailored to each individual project. Depending on your surface area, substrate, and specific requirements, you purchase only the products and quantities you need, without having to assemble the items yourself.
Which polished concrete kit should a beginner choose?
If this is your first project and you are just starting out, we recommend the ISY range. We designed it to make applying polished concrete as simple and accessible as possible—without compromising on the final result! ISY polished concrete comes ready to use: the products are pre-tinted, there is no mixing required, and the application steps have been simplified. It is the ideal solution for individuals who want to carry out their project themselves.
Is polished concrete waterproof?
Yes, provided you choose the right kit. Not all projects have the same requirements: a bathroom, a shower, a pool deck, or a countertop each call for a different level of protection.
That is why Harmony Béton offers kits tailored to specific uses. Depending on your project, they include all the necessary components—such as a waterproofing system, reinforcement strips, or a high-protection sealer—ensuring you use the solution best suited to your space and its level of exposure to water.
Does polished concrete crack?
No, a properly applied polished concrete (béton ciré) finish does not crack. Cracks are generally linked to the substrate (structural movement, pre-existing cracks, moisture, etc.). They can also occur if the preparation or application steps are not followed correctly. By choosing the right polished concrete kit and adhering to our installation recommendations, you will achieve a reliable, durable finish designed to stand the test of time.
How long does a polished concrete finish last?
Well-installed and properly maintained polished concrete can last for several decades. Its longevity depends primarily on the quality of the surface preparation and the care given to the protective varnish applied.
With appropriate maintenance—and by reapplying the varnish whenever necessary—your polished concrete will retain its appearance and durability for a long time, even in high-traffic areas such as the kitchen or bathroom.
Can you apply polished concrete yourself, or is it better to hire a professional?
Both options are entirely feasible. Our complete kits are specifically designed and pre-measured to allow individuals and diligent DIY enthusiasts to carry out their projects independently, with the help of our application guides and video tutorials. If you are a beginner, we recommend our "ISY" ready-to-use range, which is more accessible and eliminates the risk of errors in mixing ratios or color matching.
Polished concrete remains a technical material that requires precision—from surface preparation and adhering to drying times to the proper technique when using a trowel. For very large areas, complex projects, or if you simply want a guaranteed result without having to invest the time yourself, hiring an experienced professional installer is an excellent option.
Why choose Harmony Béton?
Since 2005, we have been applying our expertise to your projects, offering professional-grade products that are easy to use and tailored to each specific undertaking.
We don’t just sell concrete—we provide the keys to your success.
client projects
average rating
years of expertise
Human customer support
A real person will respond to you within 24 hours. Not just a chatbot, and no generic FAQs—just genuine advice tailored to your specific project. For us, the human element remains at the heart of your project, just as it is at the heart of our own.
Tested and certified products
Product ranges developed by experts in decorative concrete, combining aesthetic appeal, technical performance, and ease of application.
Accompagnement complet
Illustrated guide + video tutorials + expert telephone support available. Our team remains at your disposal from the start to the finish of your project.
Made in France
Products designed and manufactured in France, reflecting genuine professional expertise and a commitment to quality at every stage.
Compatible with many types of media
Whether for new builds or renovation projects, our kits are compatible with most surfaces—including tile, plasterboard (BA13), concrete, wood, cement screeds, and existing concrete.
