4.5/5 par + de 123 avis

Surface Préparation

Surface Preparation: The Key to Successful Decorative Concrete!

Before applying decorative concrete, ensure that the substrate is stable, sound, and clean. Once the surface is thoroughly cleaned and dust-free, apply the appropriate primer based on the type of floor and the selected coating.

If the surface has irregularities or defects, use a self-leveling compound to achieve a smooth, clean finish.

Primers and Repair Solutions for Every Situation

• For béton ciré:

     • Use Harmony Universal Prim Granite for all surfaces.

     • Apply Harmony Prim for porous surfaces.

     • Opt for Harmony Prim Plus for sealed surfaces.

     • For tiling or ceramic, use Harmony Adhesive Cement as a repair solution.

• For patinated concrete or acid-stained concrete:

     • Prepare the surface with Harmony Surface Prep to ensure optimal adhesion.

Proper preparation is essential for long-lasting, professional results—take the time to do it right!

10 avis
In stock

Universal Prim Granite

done Enhanced adhesion
done Porous/non-porous substrates
done Ready to use
Universal Prim Granite  is a ready-to-use bonding primer specifically designed to enhance the...
€7.66 tax incl.
10 avis
In stock

Tile Adhesive Mortar Kit

done Surface preparation for tile
done Fills tile joints
done Maximum adhesion
The Tile Adhesive Mortar Kit, a flagship renovation product, can be applied directly to your old...
€25.13 tax incl.
10 avis
In stock

Waterproof underlay

done Waterproofing system for tiled wet areas (SPEC)
done Blocks rising damp
done Optimal adhesion
Our waterproof underlay is a resin-sealing non-circulatory and collectible, resin-based liquid...
€57.59 tax incl.
Self-adhesive fibreglass -25%
10 avis
In stock

Self-adhesive fibreglass

done Prevents cracking
done Repairs and reinforces corners
done Ultra-thin, invisible layer
Self-adhesive fibreglass strip for patching cracks or reinforcing corners.
€22.15 tax incl. €29.53
  • -25%
Kit spécial fissure -10%
8 avis
In stock

Speciale kit crack

done Complete crack repair
done Resin and reinforcing mesh tape
done Long-lasting crack-bridging
This kit contains all of the products to repair a crack in a concrete or a scratch coat.
€59.40 tax incl. €66.00
  • -10%
  • Pack
2 avis
In stock

Harmony adhesive Cement

done Repair mortar
done Can be applied over existing tile
done Uniform surface
Repair mortar with base of hydraulic binder, modified by additives and resins of very high...
€38.33 tax incl.
7 avis
In stock

Prim Plus Adhesion Primer

done Maximum adhesion
done Non-porous substrates
done Ready to use
Prim Plus is a water-based adhesion primer specially designed for non-absorbent, smooth, or...
€4.62 tax incl.
10 avis
In stock

Prim Adhesion Primer

done Optimal adhesion
done Porous substrates
done Easy to apply
The Prim Adhesion Primer is a water-based bonding agent designed for porous or absorbent...
€4.57 tax incl.
10 avis
In stock

Prim Epoxy Adhesion Primer

done Exceptional adhesion
done Moisture barrier
done For difficult substrates
Looking for a reliable solution to prepare your surfaces before application? The Prim Epoxy...
€39.42 tax incl.
8 avis
In stock

Harmony Béton dry sand

done Fine grain size
done For use with Prim Epoxy
done Creates a rough surface
Bag of dry sand of 0.4 à 0.8 mm granularity, ideal for adding sand to the epoxy binding primer.
€14.42 tax incl.
Harmony Surface Preparer -35%
6 avis
In stock

Harmony Surface Preparer

done Prepares the surface
done Increases porosity
done Optimal adhesion
The Surface Preparer is specially designed to prepare and enhance surface porosity before...
€15.28 tax incl. €23.51
  • -35%
4 avis
In stock

Fiberglass strip 90m x 48 mm

done Anti-crack reinforcing mesh
done Increased strength
done Reinforces the surface
Mesh glass fibre which is highly resistant with acrylic adhesive. Easy to apply. Resists...
€10.26 tax incl.
3 avis
In stock

Expansion joint 100 cm

done Absorbs stress
done Prevents cracks
done Easy, modular installation
Expansion joint 100cm long 4.5mm high. Perfect for respecting existing expansion joints when...
€22.98 tax incl.
Joint d'arrêt -35%
3 avis
In stock

Termination joint 100 cm

done Clean, precise finish (4.5 mm)
done For stopping edges in concrete, levelling compound and similar materials…
done High-quality aluminum
Stop joint 100 cm long and 4.5 mm high. Perfect for stopping for example at the threshold of a...
€11.90 tax incl. €18.30
  • -35%
Arrest Joint 2 mm for polished concrete. L 100 cm -35%
2 avis
In stock

Arrest Joint 2 mm for polished concrete. L 100 cm

done For microcement
done Clean, unobtrusive finish (2 mm)
done Adheres directly to the substrate
Gasket stop 100 cm long and 2 mm high. Perfect for stop for example at the threshold of a door...
€11.74 tax incl. €18.06
  • -35%
10 avis
In stock

250 mm complete roll

done Streak-free finish
done Lint-free
done Ideal for varnish and resin
This 250 mm complete roll is the perfect tool for the application of finishing layers on your...
€12.36 tax incl.
3 avis
In stock

Peripheral strip

done Separates walls from the floor
done Absorbs impacts and movement
done For slab, screed and smooth-concrete work…
Peripheral strip creates a division between your floor and walls, so as to prevent cracking at...
€32.05 tax incl.
Videos

How to Prepare Your Surface Before Applying Béton Ciré Concrete?

Preparing the surface is a critical step in ensuring the successful application of béton ciré concrete. To achieve the desired result, it’s essential to thoroughly clean the surface before application. Ensure that the substrate is clean, dry, and sufficiently solid. Use specific cleaning agents to eliminate dirt and residues, as a poorly prepared surface can lead to issues such as rising moisture, which may affect the mortar's adhesion.

Preparing Béton Ciré for Porous or Sealed Surfaces

Before starting, answer two important questions:

  • What is a sealed surface?
    • A sealed surface is non-porous and does not allow for air exchange. Examples include plaster, tiles, or old layers of intact paint.
  • What is an open surface?
    • An open surface is porous and breathable, such as stone, brick, lime, or cellular concrete. Untreated wood is also considered an open surface.

To identify whether your surface is sealed or porous, apply a small amount of water. If the water is absorbed, the surface is porous; if it beads up, it is sealed.

Steps to Prepare the Surface

  • Use the appropriate primer based on the substrate type:
    • For sealed surfaces, select a primer designed for non-porous materials.
    • For open surfaces, use a primer that enhances adhesion to porous substrates.
  • Apply the primer evenly with a roller, ensuring no irregularities are visible.

  • Allow the primer to dry for up to two hours, depending on the substrate and ambient temperature.

Preparing Béton Ciré for Humid Surfaces

When working on humid surfaces, such as in bathrooms or kitchens, special primers are required. These primers prevent moisture from compromising adhesion.

Steps for Preparing Humid Surfaces:

  • Mix the Primer
    • Use a slow-speed agitator to ensure a uniform and homogenous mixture. Correct proportions are crucial for effectiveness.
  • Application
    • Apply the primer evenly with a roller to the cleaned surface.
  • Sandblasting
    • Immediately after applying the primer, sand the surface until it’s fully covered.
    • Let it dry for 24 hours, then remove excess sand.

Once dry, the surface is ready for béton ciré application.

Preparing Béton Ciré for Tiled Surfaces

To apply béton ciré on tiled surfaces, follow these steps:

  • Apply Primer
    • Use an adhesion primer and spread it evenly across the tiled surface with a roller. Ensure all irregularities are addressed.
  • Drying
    • Allow the primer to dry until the surface feels dry to the touch.
  • Apply Repair Mortar
    • Mix the repair mortar thoroughly, respecting the product’s proportions to achieve a homogeneous consistency.
    • Use appropriate tools, such as a trowel, for application.
  • Smooth the Surface
    • Apply the repair mortar evenly, smoothing it with a sponge to eliminate irregularities before it sets.
  • Clean Your Tools
    • After completing the application, rinse your tools thoroughly with clear water.

By following these steps carefully, you’ll create a solid and uniform base for the béton ciré, ensuring a flawless and durable finish.

Customer service

available 5 days a week

Secure payment

Up to 3 interest-free installments from 300€ of purchase

Free quote

Responses within 48 business hours

Free delivery

For the purchase of a polished concrete kit from 10m2

5/5
Parfait
Avis du 08/11/2026, suite à une expérience du 27/10/2026 par Frédéric B.
4/5
Commande et livraison, RAS. Les produits arrivent en bon état, tout voir plus
Commande et livraison, RAS. Les produits arrivent en bon état, tout est relativement clair dans les notices. Les produits sont compatibles avec du béton cellulaire (poreux), la quantité du primaire d'accroche est vraiment trop juste. Les produits à travailler sont très bons dans l'ensemble. Le seul problème selon moi, ce sont dans tous les produits (hors primaire) il y a comme des grumeaux, une sorte de peau. Malgré tout, nous sommes contents du résultat.
Avis du 22/10/2026, suite à une expérience du 04/10/2026 par Julien M.
5/5
Entreprise réellement sérieuse. Merci b
Avis du 20/10/2026, suite à une expérience du 15/10/2026 par E P.
4/5
Site convivial et très réactif sur la recherche de produit.
Avis du 19/10/2026, suite à une expérience du 16/09/2026 par Fabrice A.
5/5
Commande complète livrée en moins de 3 jours.
Avis du 18/10/2026, suite à une expérience du 14/10/2026 par Jean-François L.
5/5
Très bonne communication, prise en compte très rapide de la commande, voir plus
Très bonne communication, prise en compte très rapide de la commande, comme la livraison. Emballage soigné
Avis du 18/10/2026, suite à une expérience du 11/10/2026 par Chriistophe B.
5/5
Produit conforme ; bien conditionné et reçu très rapidement . Je voir plus
Produit conforme ; bien conditionné et reçu très rapidement . Je recommande sans souci. 👍
Avis du 17/10/2026, suite à une expérience du 11/10/2026 par GABRIEL S.
5/5
Excellent produit, que j'ai déjà posé il y a des années
Avis du 15/10/2026, suite à une expérience du 16/09/2026 par A W.
5/5
Très facile d accès
Avis du 12/10/2026, suite à une expérience du 01/10/2026 par Laurent C.