Hesse HYDRO-PU Glass lacquer satin effect HDU 57120

Our HDU 57120 is an isocyanate-free, clear and light fast HYDRO-PU Glass lacquer that has been specifically developed for coating glass via the spraying process. You achieve an extremely waterproof and scratch-resistant glass lacquer surface in the desired satin effect, which is also highly resistant to chemical and mechanical demands.

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  • Description
  • Information on use
  • Sample process

Fields of application

In the complete field of interior fittings, including in kitchens and bathrooms. Tinting with the likes of BP Colour concentrates is possible.

Technical specifications

Appearance not relevant
Decopaint basis WB
Decopaint category J
Density series kg/l 1.037
Flow time (+/- 15 %) 80 s / DIN 53211 - 4 mm
Form of delivery fluid
Non-volatile content series % 39
VOC EU % 5.36 %
Number of coats (max) 1
Amount per layer (minimum) 100 g/m²
Amount per layer (max) 150 g/m²
Total application volume 150 g/m²
Mixing ratio (by volume) 100 : 3 HYDRO crosslinker HDR 5002
Mixing ratio (gravimetric) 100 : 2 HYDRO crosslinker HDR 5002

Information on use

Usage time 8 h / 20 °C
Drying 24 h / 20 °C
Stackable after > 24 h / 20 °C
Complete drying 7 d / 20 °C
Surface preparation

Substrate preparation is decisive to the bond of the glass coating. The glass surface to be coated must be clean and grease-free. Carefully clean the glass surface prior to application, e.g. using Glass cleaner HS 6601.

Yield per coat 7 - 10 m²/l

The spreading rate is heavily dependent on the type of application. The specifications relate to a liter of ready-for-use product, if necessary including hardener and thinner.
Working Temperature Range 18 - 22 °C
Storage temperature 10 - 30 °C
conditions of transport 10 - 30 °C
Processing instructions

Substrate preparation is decisive to the bond of the glass coating. The glass surface to be coated must be clean and grease-free. Carefully clean the glass surface prior to application, e.g. using Glass cleaner HS 6601.

Before processing, add the crosslinker in the indicated ratio while stirring and ensure that it is well incorporated.

Note the limited processing time. Setting material can continue to be used by mixing with fresh material and then adding the crosslinker.

Clean tools with water. Use HYDRO Cleaning agent HV 6917 to remove dried lacquer residues. In the event of combined coatings (HYDRO and solvent-based lacquers) rinse application tools using HYDRO Reversing agent HV 6904.

Add the crosslinker slowly whilst stirring and then adjust the spray viscosity by adding water or HYDRO Optimizer HZ 70, if required. Maximum additive volume 5 %.

A single-coat application at 100 - 150 g/m² on a carefully prepared glass surface is recommended.

Particular instructions

Final hardness of the coating is achieved after one week in correct storage conditions (at least 20 °C room temperature). Always seal opened containers light-tight and air-tight to prevent skin forming. Remove dried lacquer residue using a sieve. Products in containers should be sieved before application. Please build up a full trial coating on the original glass under real conditions. The glass colour can affect the later colour tone when coating behind glass. Please take this into account in selection of the glass!

Tinting at 5 - 10 % using our BP Colour concentrates prior to adding the crosslinker enables a coloured, glazing satin effect to be achieved. It should be noted in this regard that the lacquer application quantity, the type of application method and the drying conditions all influence the effect and the colour shade of glass coatings.

General instructions on workmanship

When processing HYDRO materials, parts that come into contact with the material must be made from non-rusting material. Do not apply or dry HYDRO lacquers at material or room temperatures below 18 °C. The ideal humidity level when coating is between 55 % and 65 %. During the lacquering process, humidity that is too low leads to shrinkage cracks, humidity that is too high hinders drying. The coating reaches its final hardness after being stored for a week at a minimum of 20 °C. Always conduct a sample lacquering to evaluate the colour effect, adhesion and drying process under real conditions.

Glass insert for an internal door,

Surface preparation: carefully clean and de-grease the glass using HS 6601.

1 x 120 - 150 g/m² HYDRO-PU Glass lacquer satin effect HDU 57120, mixing ratio (by volume) 100 : 3 with HYDRO Crosslinker HDR 5002, thin the mixture with 5 % water.

Drying: 24 h / 20 °C

Ready for assembly or gluing: after drying/storage for at least 5 d / 20 °C.


Our technical information is continually adapted to keep up to date with the latest technology and statutory regulations. The latest version is always available online at www.hesse-lignal.de or talk to your local account manager. This information is for advice and is based on the best knowledge available and careful research in line with the current state of the art. This information cannot be held as legally binding. We also refer you to our terms and conditions of business. Safety data sheet is provided in accordance with EC regulation no. 1907/2006.