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

58.07€ tax incl.

In stock Order shipped within 1 to 3 days
  • Matt
  • Brilliant
  • Satin
  • Kit 1 kilo
  • Kit of 2 kg
  • Kit of 4 kg


Harmony Optimum Lacquer is a hard two-component water-based aliphatic polyurethane resin.

The product is characterised by a strong resistance to abrasion and excellent surface protection for floors, or walls (indoors) that are subjected to intensive use, or water splashes.

Also good for bathrooms, shower rooms and toilets.


Type: Water-based aliphatic polyurethane resin

Colour: White/transparent

Finish: glossy, satin finish, matt.

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

Art.-Nr. 4000 = glossy, Art.-Nr. 4100 matt, Art.-Nr. 4200 satin finish. The weight may vary slightly depending on the finish chosen.

Storage: 12 months in unopened original packaging, stored in a dry and frost-free location.

Guarantee: Manufacturer’s liability

Tools & Cleaning

Lacquer roller, protective gloves, paint tray, tarpaulin, weigh-scale, mixer.

Clean tools in water after use.


Usually the substrate is prepared with Harmony pore filler.

Wait 4 hours before applying Harmony Optimum Lacquer.


Application temperature: Minimum 5°C; Maximum 25°C.

Attention: if the temperature is too high, or air is humid/damp (example: new house unheated), the paint can not dry out, or change its appearance (become more shiny).

To facilitate the installation, you can add up to 10% of warm water when applying the first coat. In this case, stir the water well, otherwise there will be differences in gloss.

1st layer:

Components A and B are weighed separately.

Also, thoroughly mix component A before adding component B.

For a kit of 4 kg with a glossy finish, half of Component A = 3.12 kg or 1.56 kg and half of component B = 880 g or 440 g
For a kit of 4 kg mat or satin finish, half of Component A = 3.36 kg, i.e. 1.68 kg and half of component B = 640 gr or 320 gr

For a kit of 2 kg with a glossy finish, half of Component A = 1.56 kg or 780 g and half of component B = 440 g or 220 g
For a 2 kg kit with mat or satin finish, half of Component A = 1.68 kg, i.e. 840 g and half of component B = 320 gr or 160 gr

For a kit of 1 kg with a glossy finish, half of Component A = 780 kg or 390 g and half of component B = 220 g or 110 g
For a kit of 1 kg mat or satin finish, half of Component A = 840 gr or 420 gr and half of component B = 160 gr or 80 gr


Apply Harmony Optimum Lacquer with a roller in cross passes.

Attention: do not apply too thick.

Lacquer is usable 45 min after mixing.

2nd layer:

Once the first coat is touch-dry apply the second coat

Drying time: depending on temperature and humidity between 5 and 10 hours.

The remaining A and B components are mixed again after homogenizing component A with a mechanical mixer.

Wait at least 12 hours after applying the second coat before proceeding.

For a silky surface, sand the paint with a 600 grit sandpaper.

Wait at least 48 to 72 hours before placing furniture on the floor.


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 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 .
  • 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.

4.5 /5

Based on 52 customer reviews

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Sarah L. published the 13/09/2023 following an order made on 31/08/2023


Excellent produit

Isabelle R. published the 28/12/2022 following an order made on 14/12/2022


Livraison rapide, conseils donnés pertinents et patients (nombreuses questions posées...). 2ème commande passée via ce site : produits de qualité à recommander.

Régis M. published the 20/05/2022 following an order made on 04/04/2022


Rien à signaler

Anonymous customer published the 19/03/2022 following an order made on 02/03/2022


peu pratique

Anonymous customer published the 16/10/2021 following an order made on 03/10/2021


bon produit

Anonymous customer published the 13/10/2021 following an order made on 02/10/2021


Très bon produit mais dosage difficile quand on a besoin de petites quantités Nécessite une balance que l'on n'a pas toujours sur un chantier!

Anonymous customer published the 23/09/2021 following an order made on 13/09/2021


il faut compter 3 couches pour que se soit étanche

Anonymous customer published the 07/06/2021 following an order made on 17/05/2021


Jusqu'à présent nous avons utilisé tous les produits d'Harmony Béton pour réaliser notre sol en béton lissé et en étions très contents. Nous avons procédé selon les étapes préconisées par Harmony. Déjà nous avons reçu le colis endommagé, ce qui peut arriver, mais c'est certainement dû au choix de packaging du composant B, qui par ailleurs est très compliqué à ouvrir et pas du tout fonctionnel. Harmony ne propose pas de livraison express, nous avons donc du faire avec ce qu'il restait pour ne pas perdre de temps avec une nouvelle livraison. Nous avons acheté le rouleau proposé par Harmony Béton, réalisé la pose selon recommandation, et malgré tout on peut voir tous les coups de rouleau ce qui est vraiment très très moche. Nous avions déjà eu une petite frayeur avec le bouche pore qui marque énormément le béton mais comme il est réalisé à la serpillère cela donne d'autres effets au sol. Nous avons acheté la cire pour protéger le vernis et j'espère que cela atténuera les traces de rouleau sinon ce sera vraiment très dommage. J'attends de contacter Harmony pour savoir s'ils proposent des solutions à ce problème.

Anonymous customer published the 01/04/2021 following an order made on 15/03/2021


Le vernis ainsi que le durcisseur pourrait être déjà conditionné prêt à être mélangé en ayant chacun un pot avec les dosages déjà effectué Pas facile à mettre en place mais appréciable pour les clients

Anonymous customer published the 30/01/2021 following an order made on 15/01/2021



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