Hesse PU Multicoat Lacquer DE 42900-0003 natural wood effect

  • brightening
  • scratch-resistant
  • with a special light protection
Two-component PU natural wood effect, brightening, scratch-resistant, dull matt and formulated with special light protection. A multicoat lacquer for priming and final coating for open-pore lacquer coatings. The product can be used on bleached wood. Additionally, free from phthalate softeners and therefore also suitable for coating children's toys.
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  • Description
  • Information on use
  • Sample process
  • Safety Data Sheets / Certificates

Fields of application

Can be used for a natural wood effect mainly on maple, oak, conifers (also treated with positive stain) and softwoods. Aside from that, the product can be used with different types of hardeners and mixing ratios

Technical specifications

Appearance colourless
Density series kg/l 0.918
Flow time (+/- 15 %) 30 s / DIN 53211 - 4 mm
Form of delivery fluid
Non-volatile content series % 17.7
Profile of properties Brightening
VOC EU % 82.32 %
Number of coats (max) 3
Amount per layer (minimum) 100 g/m²
Amount per layer (max) 150 g/m²
Total application volume 450 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 8 h / 20 °C
Drying 1 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 120 - 180
Lacquer sanding (grit) from - to 280 - 320
Finishing With another coat of the same.
One-off overpainting with transparent PU lacquers is possible after at least 48 h intermediate drying / 20 °C.
Yield per coat 6 - 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
Processing instructions If necessary, the product can be mixed with DR 4071 (mixing ratio 10:1 (volumetric)) to optimize the chemical and mechanical resistance.
Particular instructions The brightening effect is only achieved when the lacquer is applied directly onto wood or onto HYDRO stains, such as positive stains. Only a fresh lacquer / hardener mixture guarantees an optimum brightening effect! Individual toning is optionally possible with:
up to 10 % DB 555-(colour tone)
or up to 5 % with Colour concentrates ZD 1-(colour tone)
or up to 5 % with Colour concentrates CF xx or CP xx (exception CP 70xx).
1 additional coat can be applied after sufficient drying and proper sanding, e.g. using DE 4259x(gloss level), DE 4259x(gloss level)-0003 or DE 4503x(gloss level).
This product must only be combined with other approved and technically suitable products when used as a flame retardant coating material for seagoing vessels according to the latest version of SOLAS 74/88 Reg. II-2/3, II-2/5 and II-2/6, IMO Resolution MSC.36(63)-(1994 HSC-Code) 7 and IMO Resolution MSC.97(73)-(2000 HSC-Code) 7. The maximum application amount in wet film when using this product as a flame retardant coating material for seagoing vessels is 250 g/m².
“A risk assessment was undertaken according to Directive 2014/90/EU, Annex II, Section 3. This coating does not pose a physical risk to health nor a risk to the environment when cured and dried.”
General instructions on workmanship PU lacquers should not be used or dried at material and room temperatures of less than 18 °C and 40 % RH, ideal values: 20 - 25 °C, 50 - 65 % RH. Deviations will result in drying or curing errors. In order to avoid adhesion problems, please freshly sand PU lacquered surfaces before applying the next coating and apply lacquer to the sanded surfaces as soon as possible. Mixed residues from the previous day must only be used as a 10 - 20 % aggregate in a fresh lacquer/hardener mixture. Old lacquer/hardener mixtures impair the surface quality (adhesion/stability). Freshly bleached woods must undergo intermediate drying for at least 48 h / 20 °C before overpainting with PU lacquers. If stored correctly (at least 20 °C room temperature), complete hardening of the coating is achieved after a week. Please test the lacquer under real conditions!

Sideboard in dull matt oak
Wood sanding: 150 - 180 grit
Basecoat: 1 x 120 - 140 g/m² Hesse PU Natural wood effect DE 42900-0003, mixing ratio (by volume) 10 : 1 with PU Hardener DR 4070 and the addition of 10 % Thinner DV 4900 to the lacquer/hardener mixture
Intermediate drying: 30 - 60 min / 20 °C
Intermediate sanding: 320 - 400 grit
Top coat: 1 x 120 - 140 g/m² Hesse PU Natural wood effect DE 42900-0003, mixing ratio (by volume) 10 : 1 with PU Hardener DR 4070 and the addition of 10 % Thinner DV 4900 to the lacquer/hardener mixture
Dust dry: after 15 - 20 min / 20 °C
Packable: after at least 16 h / 20 °C
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.