Optimum Lacquer

Harmony Béton Optimum Lacquer is a hard-wearing and flexible two-component resin with an aliphatic polyurethane base in the aqueous phase and with high resistance to water abrasion, which is designed for the protection of interior floors or walls.

It provides excellent surface protection for coverings which are subject to intense wear or exposed to water spray (in showers or bathrooms).

More details

63.65€ tax incl.

In stock Order shipped within 48 hours
  • Matt
  • Brilliant
  • Satin
  • Kit 1 kilo
  • Kit of 2 kg
  • Kit of 4 kg



Type : Water-based polyurethane lacquer

Colour : White

Finish : Gloss, satin, matt.

Coverage : 1 kg = 6 - 7 m2 in two coats.


4 kg kit : Component A = 3.1 kg, component B = 900 g

2 kg kit : Component A = 1.55 kg, component B = 440 g

1 kg kit : Component A = 770 g, component B = 230 g

Ref 4000 = Gloss, ref 4100 = Matt, ref 4200 = Satin

The weight may vary slightly, depending upon the finish selected.


Storage : 6 months in unopened original packaging, stored in a dry and frost-free location.

Guarantee : Manufacturer’s liability

CSTB test report n° R2EM-SIST-12-26039058.


Tools & cleaning


Lacquer roller, paint gun, sprayer, protective gloves, tarpaulin, paint tray.


Clean tools in water after use.


Preparation of base surface


The base surface must be resistant, sound, solid, clean, dry and free of humidity.


Use Harmony neutral cleaning agent for any cleaning required (to remove grease, oil or soiling).


The base surface must be perfectly dry before Harmony Pore Sealant is applied.


Apply a thin and uniform film in a ratio of 1 litre per 10 m2, applied in a single coat using a crosswise action.


Where a large area is to be covered, use the 250 or 500 mm PermaPro special floor nozzle or the PermaPro paint gun.


Do not create any excess thickness.


Wait for 2 - 3 hours before applying Harmony Optimum Lacquer.




Application must be completed within a temperature range of 5° - 25°.


1st coat :

Weigh components A and B separately, in order to obtain the following ratio for the 1st coat:


For a 4 kg kit, 1.55 kg of component A and 450 g of component B.

For a 2 kg kit, 780 g of component A and 220 g of component B.

For a 1 kg kit, 385 g of component A and 115 g of component B.

If no weighing balance is available, mix 3.5 parts of component A to 1 part of component B.

Mix components A and B thoroughly using a mechanical mixer.


Apply Harmony Béton Optimum Lacquer with the PermaPro special lacquer roller, using a crosswise action.


Do not create any excess thickness.


2nd coat :

Apply the second coat 8 hours after the first coat. The time between coats must not exceed 36 hours.


Mix the remainder of components A and B using a mechanical mixer.


Apply.  Use a crosswise action to ensure the effective spreading of lacquer. Do not create any excess thickness.


Wait a minimum of 12 hours after the application of the second coat before walking on the treated surface.




Information on the level of volatile emissions in the interior atmosphere which may pose a risk of toxicity by inhalation, on a scale ranging from A+ (very low emissions) to C (high emissions).

Type of roomKitchen
Consumption1kg for 6m2
Conservation6 months in its original packaging, unopened and stored in a dry and frost-free
WarrantyRC manufacturer


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  • 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 : au 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 contact@harmony-beton.com

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 or going to or take part in the Harmony Béton training courses We made them juste for you
  • We offer wholesale purchase on pallets and can ship our products in white label or with the label of your company.
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  • For further information on the nature of the review controls, as well as the possibility of contacting the author of the review please consult our CGU.
  • No inducements have been provided for these reviews
  • Reviews are published and kept for a period of five years
  • Reviews can not be modified: If a customer wishes to modify their review then they can do so by contacting Verified Reviews directly to remove the existing review and publish an amended one
  • The reasons for deletion of reviews are available here.

4.7 /5

Based on 33 customer reviews

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Jean-Jacques T. published the 08/04/2019 following an order made on 12/02/2019


Bien, mais il faut bien réaliser la finition en dessous...parce que le vernis accentue les défaut.

Jean-Baptiste H. published the 29/03/2019 following an order made on 12/03/2019


J'ai pris le mat. Appliqué sur des vivaboard gris moyen au sol, la couleur tourne vers le marron mais ça rend très bien. Ça al air très solide.

RAZVAN L. published the 01/03/2019 following an order made on 25/02/2019


Corresponds a mon besoin

Alexandra C. published the 07/02/2019 following an order made on 29/01/2019



Kevin S. published the 01/02/2019 following an order made on 25/01/2019


Tres bien

Thibaut X. published the 26/01/2019 following an order made on 03/01/2019


très bien

Romain O. published the 26/01/2019 following an order made on 08/01/2019


Excellent rendu après une couche de bouche pores sur un escalier en béton brut. Très satisfait.

Mathieu L. published the 16/01/2019 following an order made on 07/01/2019


j'ai utilisé ce vernis et celui de la marque yellostone. En comparaison celui ci est plus difficille à appliquer dû à sa consistance. Le rendu est moins doux au toucher que celui de yellostone.

Seb E. published the 20/12/2018 following an order made on 19/12/2018


super produit. seul inconvénient l'obligation de bien peser les composants avant de les mélanger. Une balance précise est indispensable

Pierre S. published the 16/09/2018 following an order made on 06/09/2018


Facile à mettre en œuvre. Le rendement est bien au-delà de ce qui est annoncé


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