AquaSeal GreenStar – ECO varnish for surfaces with extreme load

Premium class, the first 100% ecological 2-comp. varnish free of isocyanates and no harmful substances. When the varnish dries, no CO2 gases are emitted.


1 rollered/brushed coat:approx. 100 ml/m2 or approx. 10 sqm/l


1,65 l – EUR 81,92

5,5 l – EUR 186,34 reduced price. The basic price of the product is EUR 238,85


Varnish available semi-gloss and matte.


* The terms of the contract and the right of withdrawal can be found in the Documents section.


* This product is one of the regulations of the Cabinet of Ministers No. 255, 22nd article exceptions, where the customer cannot exercise the right of withdrawal.



Two-component, waterborne, premium-class finishing product for hardwood floors. It is based on polyurethane and offers outstanding resistance properties and a universal high-end applicability. Although it is two-component, the product (including the hardener) is completely free of hazard labeling and emits no CO2 gas during reaction. Also, the product offers an extremely long pot life of 18 h minimum. Thanks to its special properties and elasticity, the product is approved for cork floors and also achieves outstanding chemical resistance values. AquaSeal GreenStar was tested in accordance with DIN 51 130 and meets the slip resistance requirements of rating R9, R10 and R11. The suitability for sports floors is certified by test certificates according to DIN 18032-2 and EN 14909. Giscode: W3+; DIN 71-3/safety of toys; DIN 53160/ Saliva and perspiration authenticy; DIN V 18032-2/ Suitability for sports floors; DIN EN 14904/ Suitability for sports floors; DIN 51130/DGVU 108-003/ DIN 51130/DGVU 108-003: R9, R10, R11.

Degree of gloss: matt, semi-gloss

Special advice: In order to reduce the risk of edgebonding, AquaSeal ExoBloc, AquaSeal FlexPrimer, AquaSeal SpachtelGel or Classic BaseOil can be used as primer alternative. The use of SolvSeal UniQuickPrimer is also possible.

Application: AquaSeal GreenStar is mixed shortly before use, 10:1 with AquaSeal GreenStar Härter (hardener) in the combo can or in the BergerTool MixBox. Mix well immediately after adding the hardener. Give the mixture 10 minutes to rest, to obtain optimum usability. The mixture is good for 18 h (open time).

Recommended standard structure: 1x AquaSeal ExoBloc then 2x AquaSeal GreenStar. This is the best possible setup, especially in critical cases. A full build is achieved with 3 roller applied coats or two coats over one of the above-mentioned primers. Coating some wood species such as beech, maple and ash is to be done by roller and shall not be troweled!

Special tips: contrary to conventional solvent-based finishes, AquaSeal finishes should be applied in rich layers. The material should not be excessively spread with the roller.

Draying: in order to avoid excessive swelling pressure, we recommend to do only one rolled coat of water-borne finish per day, so that the wood has enough time to release the absorbed water. As a rule, the finish itself can be sanded and cautiously walked on for further work after 3-4 hours at 23°C/50% rel. humidity.

Before the last coat of varnish, it is recommended to perform an intermediate sanding with a 120-grit sieve.

Insufficient ventilation, low temperature, different humidity as well as thicker finish coats will considerably delay the drying.

Under standard conditions the finished floor can be put to use after 72 hours. Do not cover with carpets or apply care products for 8-14 days. After complete drying/crystallization of the varnish, Brilliance Everclear wax can be applied.


Consumption: depending on wood surface and method of working:

  • troweled coat when troweling between coats: approx. 30ml/m2 or approx. 35 m2/l;
  • 1 rolled/brushed coat: approx. 100 ml/m2 or approx. 10 sqm/l


Storage / transport: shelf life of original unopened packing min. 12 months, provided that the material is transported and stored at a cool and dry place protected from freezing. Started hardener cans must be hermetically sealed after use.

Store in a dry, well-ventilated place at a temperature between 15 ° C and 25 ° C. Protect from heat and direct sunlight. Keep tightly closed.


Prefinished engineered flooring: AquaSeal GreenStar adheres well to many prefinished engineered flooring products, but because of the multitude of these products no conclusive general statements can be made. Generally, individual adhesion tests should be conducted with each brand of flooring. In prior tests it has proved beneficial, prior to coating, to thoroughly clean the floor with Brilliance Cleaner L94 wax remover and thereafter to damp mop the floor with clean water; after the floor has dried it shall be polished carefully with sieve grid 120 to provide a matt surface. Please also refer to our Technical Special Information No. 05.