Hesse PU Special basecoat DG 4744

  • Particularly transparent
  • Light fast
  • Resilient
  • Excellent bonding to critical carriers e.g. glass
A colourless dual-component PU acrylic resin primer, light-fast, resilient, particularly transparent and with excellent bonding to critical carriers. The Hesse PU special primer DG 4744 can also be used as a primer for effect lacquering onto or behind glass.
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  • Description
  • Information on use
  • Sample process
  • Safety Data Sheets / Certificates

Fields of application

For all interior fittings, including kitchen and bathroom.

Technical specifications

Appearance colourless
Density series kg/l 0.974
Flow time 29 s / DIN EN ISO 2431 - 4 mm
Form of delivery fluid
Non-volatile content series % 36.1
Profile of properties
  • Can be polished
  • Highly elastic
VOC EU % 63.92 %
Number of coats (max) 5
Amount per layer (minimum) 100 g/m²
Amount per layer (max) 180 g/m²
Total application volume 600 g/m²
Mixing ratio (by volume) 5 : 1 PU Hardener DR 4076-0001
Mixing ratio (gravimetric) 100 : 20 PU Hardener DR 4076-0001

Information on use

Usage time 5 - 6 h / 20 °C
Pot life 8 h / 20 °C
Drying 16 h / 20 °C
Stackable after > 16 h / 20 °C
Complete drying 7 d / 20 °C
Surface preparation
The surface preparation is crucial in ensuring good coat bonding. When lacquering glass, we recommend using Hesse glass cleaning agent ZD 101.
Comments on sanding If the Hesse PU Special primer DG 4744 is not applied to glass, a carrier sanding of grit 280 - 400 is recommended. Please apply a test coat under real conditions!
Yield per coat 5 - 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.
Storage temperature 16 - 25 °C
Working temperature 20 °C
Particular instructions Hesse PU effect structures behind glass, such as marble or raindrop effects, must be applied in reverse order. For final lacquering, the UNA-COLOR should also be hardened with glass lacquer hardener DR 4076-0001 at a mixing ratio (by volume) of 5 : 1.
General instructions on workmanship PU lacquers should not be applied and dried at material and room-temperatures below 18 °C and 40 % RH. Ideal values are: 20 - 25 °C, 50 - 65 % RH. Deviations will result in drying or hardening errors. In order to avoid adhesion problems, please sand the PU lacquered surfaces before applying fresh lacquer and apply lacquer to the sanded surfaces as soon as possible. Old lacquer and hardener mixtures affect the surface quality (adhesion/resistance). Freshly bleached substrates must undergo intermediate drying for at least 48 h at 20 °C before coating with suitable PU lacquers. If stored correctly (at least 20 °C room temperature), the final hardness of the coating is achieved after a week.
Please apply a test coat under real conditions!

Contract installation of a glass partition with a marble-effect coating
Substrate preparation: Clean the glass carefully and remove any grease using Hesse glass cleaner ZD 101
Basecoat: 1 x 120 - 140 g/m² Hesse PU Special basecoat DG 4744 mixed with PU Hardener DR 4076-0001 at a mixing ratio (by volume) of 5 : 1 and thinned with 5 - 10 % of DV 494 or DV 4994.
Drying: at least 16 h / 20 °C
Prepare the desired marbling colours as follows: Hesse UNA COLOR DB 555-(colour tone), mixing ratio (by volume) 5 : 1 with PU Hardener DR 4076-0001 and thinned at 1 : 5 with DV 490 or DV 4900.
Adding effect: paint or dab the various colours in irregular lines. Dampen screwed-up parchment or a natural sponge with the Hesse marbling solution DV 4991 and use it to stamp the surface until the desired effect is achieved.
Drying: 1 - 2 h at 20 °C.
Top coating: 1 x 100 - 120 g/m² UNA COLOUR DB 555-(colour tone) tone mixed (by volume) at 5 : 1 with PU Hardener DR 4076-0001 and thinned with 5 - 10 % of DV 494 or DV 4994.
Drying: at least 16 h / 20 °C
Packable: after at least 48 h at 20 °C.
It can be mounted or glued in position after 7 days at 20 °C.

Material Safety Data Sheets

Contact

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.