Hesse MEGA-PU Basecoat DG 417

  • light fast and well-bodied
  • very good adhesion properties and wetting of wood pores
  • resistant to peroxide so can be used on bleached woods
  • wide area of application, also on MDF edges in damp environments
MEGA-PUR Base DG 417 is ideally suited as a base coat for closed-pore and light fast coatings even on critical wood species with matching Hesse intermediate and finishing lacquers in gloss levels dull matt to high gloss. This product has good body and dries to be very transparent and can also be used without problems on bleached woods. It can also be used as a sealant for MDF edges in damp environments.
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  • Description
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Fields of application

MEGA-PUR Base DG 417 can be used for shopfitting and all interior fixtures and fittings, including in kitchens and bathrooms as well as the fitting out of ship interiors.

Technical specifications

Yield per coat 6 - 10 m²/l

The spreading rate is heavily dependent on the type of application. The specified theoretic spreading rate reduces by up to 40 % with spray applications. Brushing or manual application methods are virtually loss-free. The specifications relate to a liter of ready-for-use product, if necessary including hardener and thinner.
Appearance colourless
Density series kg/l 0.955
Flow time 36 s / DIN 53211 - 4 mm
Form of delivery fluid
Non-volatile content series % 38.1
VOC EU % 61.87 %
Number of coats (max) 4
Amount per layer (minimum) 100 g/m²
Amount per layer (max) 150 g/m²
Total application volume 600 g/m²
Mixing ratio (by volume) 5 : 1 PUR Hardener DR 470
Mixing ratio (gravimetric) 100 : 20 PUR Hardener DR 470

Information on use

Usage time 1,5 - 2 h / 20 °C
Pot life 3 h / 20 °C
Drying 6 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
Intermediate lacquer sanding (grits) from-to 320 - 400
Finishing After sufficient drying, can be re-coated using suitable light-fast Hesse polyurethane multi-coat, top coat and brilliant lacquers.
Working temperature 20 °C
Processing instructions When being used as a flame-retardant coating agent for seagoing vessels, the maximum total application amount is 120 g/m².
Particular instructions When used as a flame-retardant coating for ocean-going vessels this product is only compatible with other technically suitable and approved products. For use as MDF edge-insulation under colour lacquer systems, treat the lacquer / hardener mixture with 20 - 30 % Thinner (DV 4900 / DV 490 or DV 4994 / DV 494). When used on bleached woods and artificial veneers, the first basecoat application requires the addition of 50 % ( DV 4994 / DV 494 or DV 4955) in relation to the lacquer/hardener mixture. Always apply another coat on the same day after prior sanding at 320 grit.
“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 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!

Natural maple sideboard, satin gloss
Priming: 2 - 3 x 100 - 150 g/m² Hesse MEGA-PUR Basecoat DG 417, mixing ratio (by volume) 5 : 1 with PU Hardener DR 470, addition of 10 - 20 % DV 490 to the base lacquer
Intermediate drying: in each case at least 6 h / 20 °C, preferably overnight
Lacquer sanding: in each case 320 - 400 grit
Top coat: 1 x 100 - 150 g/m² Hesse MEGA-PUR DE 567, mixing ratio (by volume) 10 : 1 with PU Hardener DR 470
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.