Hesse PU NANO TOP-COAT DU 4554x(gloss level)

An aromatic-free, two-component PU acrylic resin finishing lacquer. Hesse PU NANO-TOP coat is characterised by its particular transparency, scratch resistance, smooth bond and uniform, cloud-free matting on very dark backgrounds. The product is free from phthalate softeners and therefore also suitable for the coating of children's toys.
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  • Description
  • Information on use
  • Sample process
  • Safety Data Sheets / Certificates

Fields of application

For all interior fixtures and fittings on all clear PU basecoats and as a finishing coat on PU coloured lacquers.

Technical specifications

Appearance colourless
Density series kg/l 0.895 - 0.904
Flow time (+/- 15 %) 30 s / DIN 53211 - 4 mm
Form of delivery fluid
Non-volatile content series % 19 - 21
VOC EU % 80.730003 %
Number of coats (max) 1
Amount per layer (minimum) 100 g/m²
Amount per layer (max) 180 g/m²
Total application volume 180 g/m²
Mixing ratio (by volume) 10 : 1 PU Hardener DR 4070
Mixing ratio (gravimetric) 100 : 10 PU Hardener DR 4070

Information on use

Usage time 8 h / 20 °C
Pot life 2 d / 20 °C
Drying 2 h / 20 °C
Stackable after > 16 h / 20 °C
Complete drying 7 d / 20 °C
Surface preparation Clean, dry wood, dependent upon wood type and method of application.
Substrate sanding grits from-to 150 - 180
Lacquer sanding (grit) from - to 320 - 400
Finishing After sufficient drying and immediately after interim sanding with lacquer from the same product range.
Yield per coat 5 - 9 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

PU NANO-TOP DU 4554x(gloss level) is also suitable for finishing UNA-COLOR DB 4524x(gloss level)-(colour tone) and provides the desired ring-resistance alongside uniform matting without clouding. Pre-priming for transparent lacquer structures is possible, depending on the surface processes and substrate material, for instance using Basecoats DG 4720-0001, DG 4734, DG 4717-0005 or DG 4768-0004.

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 furnishing in laminated MDF, filled, black and dull matt
Filler sanding: 320 - 400 grit (dust removal)
Colour lacquering: 1 x 120 - 140 g/m² Hesse UNA-COLOR DB 45245-9005, mixing ratio (by volume) 10 : 1 with PU Hardener DR 4070 and the addition of 20 - 30 % Thinner DV 4900 to the lacquer/hardener mixture
Intermediate drying: at least 4 h / 20 °C.
Lacquer sanding: 400 grit (dust removal)
Top coat: 1 x 100 - 120 g/m² Hesse PUR NANO-TOP DU 45540, mixing ratio (by volume) 10 : 1 with PU Hardener DR 4070 and the addition of 10 % Thinner DV 4994 to the lacquer/hardener mixture
Packable: after at least 16 h / 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.