Multi DTM 4:1

Acrylic primer


colorart. no.capacityquantity in box
grey14700 0,8l+0,2l6
black14701 0,8l+0,2l6
white14702 0,8l+0,2l6
grey14696 3,6l4
black 14697 3,6l4
white14698 3,6l4
hardener14699 0,9l4

Gloss grade

Multi DTM 4:1


High-quality 2K multifunctional acrylic primer with the addition of anti-corrosive agents and a very wide range of applications. It works perfectly both as a filling and a grounding primer and can be applied directly to metal, providing excellent protection against corrosion for areas sanded to bare steel. An additional advantage of the primer is the possibility of applying it with the „wet on wet” technique, without the need for sanding.


  • Excellent anti-corrosion protection of steel.
  • Very good insulating and filling properties.
  • Very short curing time.
  • Can be applied using the „wet on wet” technique.
  • Strong adhesion to various types of substrates.


Acrylic primer MULTI DTM 4:1 can be applied over:

  • Bare steel and aluminum after matting and degreasing
  • Zinc coated, galvanized steel.
  • Polyester laminates (GFK/GRP).
  • Wash primers.
  • 2-pack polyester putties, polyester spraying fillers.
  • 2-pack acryl fillers.
  • 2-pack epoxy fillers.
  • Old finishes in good condition.
  • Good surface preparation is necessary to achieve the best results of repairs.

Important informations

  • Przetrzeć odtłuścić


  • Proporcje mieszania

    mixing ratio by weight
    4 : 1 + 15 ÷ 20%
    *grouding version

  • Lepkość natryskowa

    spray viscosity
    25 ÷ 20 seconds at 20°C

  • Żywotność mieszanki

    pot life
    approx. 15 minutes at 20°C

  • Liczba warstw

    1 ÷ 2 layers
    HVLP / RP
    Ø 1.5 ÷ 2.0 mm

  • Czas odparowania

    between layers: about 5 min.

  • Czas odparowania

    before baking: about 10 min.

  • Czas utwardzania

    hardening time
    1.5 ÷ 2.5 h / 20°C
    15 ÷ 20 min./ 60°C

  • Szlifowanie na sucho


  • Szlifowanie na mokro


Application process

  • Zastosowanie
  • Use

    For car repairs as a filling or grounding primer for sanding or wet on wet.

  • Proporcje mieszania
  • Mixing ratio by volume

    Primer : 4
    Hardener : 1
    Thinner :
    – 5-10% as filling primer
    – 15- 20% as grounding primer
    – 25-30% as wet on wet

    Stir thoroughly until achieving homogenous mixture.

  • Lepkość natryskowa
  • Spraying viscosity

    40 ÷ 30 seconds at 20°C for the filling version (at 5-10% thinner)
    25 ÷ 20 seconds at 20°C for the grounding version (at 15-20% thinner)
    19 ÷ 17 seconds at 20°C for wet on wet version (at 25-30% thinner)

  • Żywotność mieszanki
  • Pot life

    about 15 minutes at 20°C for the filling and grounding version
    about 20 minutes at 20°C for wet on wet version

  • Liczba warstw
  • Number of layers

    Sanding version:
    1 ÷ 2 layers
    Filling primer – approx. 80 µm for each dry layer.
    Grounding primer – ok. 50 µm for each dry layer.
    RP gun parameters
    Nozzle: 1,6÷2,0 mm; Pressue: 2,0÷2,2 bar.
    HVLP gun parameters
    Nozzle: 1,5÷1,7 mm; Inlet pressure: 2,0 bar.

  • Liczba warstw
  • Number of layers (wet on wet)

    Wet on wet version:
    1,5 layers
    approx. 30µm for each dry layer.
    RP gun parameters
    Nozzle: 1,2÷1,4 mm; Pressure: 2,0-2,2 bar.
    HVLP gun parameters
    Nozzle: 1,3÷1,5 mm; Inlet pressure: 2,0 bar.

  • Czas odparowania
  • Evaporation time

    between layers: 5-10 minutes
    before applying solvent base: approx. 20 minutes
    before applying water base: approx. 30 minutes

    Evaporating time depends on temperature and layer thickness.

  • Czas utwardzania
  • Hardening time

    At 20°C:
    Grounding version / 50 ÷ 100 µm / ready to sand after 1.5 ÷ 2.5 h.
    Filling version / 80 ÷ 160 µm / ready to sand after 2 ÷ 3 h.
    Curing time at an object temperature of 60°C
    Grounding version / 50 ÷ 100 µm / ready to sand after baking for 15 ÷ 20 minutes and cooling the coating (about 1h).
    Filling version / 80 ÷ 160 µm / ready for grinding after baking for 20 ÷ 30 minutes and cooling the coating (about 1h).
    Temperature lower than 20°C is extending hardening time.

  • Suszenie promieniem IR
  • IR drying

    Grounding version /50-100 µm/: 6-8 minutes under short wave.
    Filling version /80-160 µm/: 8-10 minutes under short wave.
    Do not exceed 60°C.
    Use as recommended by the equipment manufacturer.
    Wait about 10 minutes before starting the heater drying.

  • Szlifowanie na sucho
  • Dry sanding

    Grinding machine: P360÷P500.
    Hand sanding: P320÷P500.

  • Szlifowanie na mokro
  • Wet sanding

    Grinding machine: P600÷P1000.
    Hand sanding: P800÷P1000.
    Wet on wet does not require sanding!

  • Informacja
  • Further work

    2K acrylic fillers can be directly over coated with:
    -2K top coats.
    -1K base coats.
    And also:
    -2K polyester putties
    -2K acrylic primers

  • Informacja
  • General notes

    -Do not exceed recommended doses of the hardener!
    -The best repair results can be achieved at room temperature. The temperature in the body shop and the temperature of the product should be similar
    -When working with 2K products, it is recommended to use personal protection.
    -Protect the eyes and respiratory system.
    -Clean the guns and equipment immediately after use.
    -The rooms should be well ventilated.

    Caution: To maintain safety, always follow the instructions given in the MSDS for the products.

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