Online only Not available in our store

Prosoldur surface hardener

Prosoldur (Achroquartz) hardener lets you colour the surface of your fresh concrete. The smooth mineral appearance of Prosoldur will give your interior a very loft-like look.

More details

Made in France Made in France
ISO 9001:2008
NF EN 13813

19.47€ tax incl.

Order shipped within 15 days
  • Bag - 25 kg
  • Palette (40 sacs)
  • Demi-palette (20 sacs)
Color : Choose another color


ProSolDur is a a coloured surface hardener made of minerals with high hardness and a hydraulic binder.

Performance assessment of the CSTB Nr. 10-26022883 * 01


Type: coloured surface hardener

Colours: 14

Packaging: 25kg

Granulometry: 0/3; tub/bag

Dosage: +/- 4 bis 5 kg / m2

Compression strength: MPa 70,35

Bending strength: MPa 10,15

Storage: 6 months in unopened original tub, 12 months in unopened original bag; stored in a dry and frost-free location.

Guarantee: Manufacturer’s liability

Compliant with standard EN13813

Application by dusting

ProSolDur is applied to a concrete whose thickness conforms to the guidelines of DTU 133 soil.

Sprinkle ProSolDur evenly over the floor.

Observe quantity: 2 to 2.5 kg per m2.

If the hardener has absorbed moisture from the concrete, the surface in the corners and edges must first be smoothed with a hand spatula and then with a mechanical spatula.

On the second pass of ProSolDur the quantity (2 to 2.5 kg per m2) remains the same.

Important: For a consistent result, use exactly the same technique and amount on the second pass as you did on the first pass.

Application by pouring

Treat the surface beforehand with Harmony Primer or Primer Plus.

When ProSolDur is used in conjunction with mortar or screed, add 2 litres of water and 1 litre of latex (see data sheet for Harmony Latex) per 25 kg of ProSolDur.

Knead in a concrete mixer until a homogeneous paste is formed.

Apply paste freshly in a ratio of 12 kg per m2 with a mechanical spatula to the substrate.

The spatula should be equipped with a polishing pad.

After the ProSolDur process, it is necessary to spray an aqueous or solvent containing hardening product (see Technical Data Sheet Harmony Curing Agent or Curing Agent SL).

Note the following deadlines for walkability:

Light traffic: 7 days

Normal traffic: 28 days


Use Harmony Hydro Varnish for protection (see technical data sheet).

Before each laquer treatment we recommend to use first Harmony Décap Curing Agent.

Type of roomDining room, Bedroom, Path-path to, Kitchen, Bathroom, Terrace, Tower pool
Particle size0 to 3 mm
Consumption4 kg / m2


We guarantee a secure payment by



  • Shipped within 48 hours After reception of payment. . Period for carriage between 2 and 4 days
  • Delivery to the following countries
    France, Belgium, Luxembourg, Germany, Austria, Poland.
  • For Corsica, the DOM/TOM and other destinations in Europe, please contact us so that we can assess the shipping costs

Customer Service

You can contact us

  • via chat : at the bottom right
  • via telephone : 04 42 20 10 09
    from Monday to Friday from 8:00 a.m. to 8:00 p.m. and Saturday from 8:00 a.m. to 6:00 p.m.
  • via email : At the following address

Our services dedicated to professionals

  • Harmony Béton assists professionals with every construction / renovation project involving decorative concrete.
  • You will be guided in your product choice then in its utilisation
  • You can also follow our tutorial videos .
  • We offer wholesale purchase on pallets and can ship our products in white label or with the label of your company.

Tips, product information, personalized quotes?

A personal adviser is at your disposal, Click here

Cancel Choose this color

Enjoy voucher OEUF5 !