Hesse PU Isolating Filler DP 4797-(colour tone)

  • an extremely wide range of applications
  • very well filling
  • Good sanding properties
  • Extremely good ability to stay on vertical surfaces underneath coloured lacquers
The Hesse PU Isolation primer DP 4797-9343 is a pigmented two component PU alkyd basecoat. It has very good body, sands well and has outstanding hold beneath Hesse coloured lacquers. This PU isolation primer is eminently suitable for building up a closed-pore colour finish, together with a wide range of applications.
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  • Description
  • Information on use
  • Sample process
  • Safety Data Sheets / Certificates

Fields of application

Throughout interiors, including heavily used areas like kitchens and bathrooms. It can be used on lots of types of wood, MDF and many laminates. Due to its excellent bonding properties, this PU isolation primer can be used as an adhesion primer on a wide variety of plastics.

Technical specifications

Appearance opaque
Density series kg/l 1.381 - 1.423
Flow time (+/- 15 %) 90 s / DIN 53211 - 4 mm
Form of delivery fluid
Non-volatile content series % 63 - 66
VOC EU % 33.970001 %
Number of coats (max) 4
Amount per layer (minimum) 140 g/m²
Amount per layer (max) 300 g/m²
Total application volume 800 g/m²
Mixing ratio (by volume) 4 : 1 PUR Hardener DR 4056
Mixing ratio (gravimetric) 100 : 18 PUR Hardener DR 4056

Information on use

Usage time 3 - 4 h / 20 °C
Pot life 2 h / 20 °C
Drying 5 h / 20 °C
Stackable after > 16 h / 20 °C
Complete drying 7 d / 20 °C
Surface preparation Clean, dry wood, depending on species and application method. Perform cleaning by sanding on foil or melamine before coating.
Substrate sanding grits from-to 150 - 320
Lacquer sanding (grit) from - to 320 - 400
Finishing After sufficient drying and careful sanding, this product can be coated with Hesse HYDRO, PU or CN coloured lacquers and with the majority of commercially-available painting varnishes. Carry out a sample coating, if required.
Comments on sanding Sanding with 600 grit is recommended for a high gloss top coat.
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 - 40 °C
Working temperature 20 °C
Particular instructions This product can be forced dried at up to 50°C. All grease must be carefully removed from the substrate when using it as an adhesion primer. On MDF substrates: Thick boards that have been created by gluing together several thinner boards are, due to the variance in tension, susceptible to edge ridging. It is better to select a single MDF board of the appropriate thickness. Panels that have been glued together should always be sanded flat at the edges and colourlessly pre-insulated. Any water introduced by gluing must be allowed to evaporate prior to coating.
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!

The coating process and the precise treatment parameters are adapted in each case to the respective application and drying conditions and can be found in the customer-specific process descriptions (surface techniques).

Material Safety Data Sheets


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.