HS Master 4:1

Acrylic primer

Variants

Colour Art. No. Capacity Quantity per carton
grey1328 0,8 l + 0,2 l6
white6327 0,8 l + 0,2 l6
black6328 0,8 l + 0,2 l6

Gloss grade

matt
HS Master 4:1

Technical documentation

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Description

2K high build acrylic primer for car body repairs. Basic primer with good coverage and strong filling. Features very good adhesion to aluminum and steel surfaces as well as great vertical stability.

Advantages

  • Easy to mix and apply.
  • Short curing time.
  • Good filling properties.

Substrates

Acrylic Filler HS MASTER 5:1 can be applied over:

  • Steel and aluminum after flatting and degreasing.
  • Polyester glass laminates (GFK/GRP).
  • 2K polyester body fillers and putties.
  • Wash primers.
  • 2K epoxy primers.
  • Old finishes in good condition after matting and degreasing.

Good preparation is necessary for achieving best results.

Following sandpaper gradations are recommended:

  • by hand (dry or wet): P280÷P320 (GRP P400),
  • by machine (dry): P180÷P220.

Important informations

  • Przetrzeć odtłuścić

    degrease

  • Proporcje mieszania

    Mixing ratio
    4 : 1 + 15÷20%

  • Lepkość natryskowa

    Spraying viscosity
    30÷50 s / 20°C

  • Żywotność mieszanki

    Pot life
    about 60 min. / 20°C

  • Liczba warstw

    2÷3 layers
    about 80 µm for each layer

  • Czas odparowania

    between layers
    5 minutes

  • Czas odparowania

    before baking
    10 min.

  • Czas utwardzania

    Drying time
    for total thickness of 200 µm
    about 3÷4 hours at 20°C.
    about 30 minutes at 60°C.

  • Szlifowanie na sucho

    P360 ÷ P500

  • Szlifowanie na mokro

    P600 ÷ P1000

Application process

  • Zastosowanie
  • Use

    For car repairs as a filling primer.

  • Proporcje mieszania
  • Mixing ratio by volume

    Primer: 4
    Hardener: 1
    Thinner: 15÷20%

    Stir thoroughly until achieving homogenous mixture.

  • Lepkość natryskowa
  • Spraying viscosity

    30÷50 seconds at 20°C

  • Żywotność mieszanki
  • Pot life

    Approx. 60 minutes at 20°C.

  • Liczba warstw
  • Number of layers

    2÷3 layers; 80µm for a single layer.

    Parameters for RP spray gun
    Nozzle: 1,6÷2,0 mm; Pressure : 2,0-2,2 bar.

    Parameters for HVLP spray gun
    Nozzle: 1,5÷1,9 mm; Inlet pressure: 2,0 bar.

  • Czas odparowania
  • Flash off time

    Between layers: approx. 5 minutes
    Before baking: approx. 10 minutes

    Flash off time depends on temperature and film thickness.

  • Czas utwardzania
  • Drying time

    For thickness 200 µm
    Approx. 3÷4 hours at 20°C.
    Approx. 30 min at 60°C.

    Temperatures below 20°C significantly increases the drying time.

  • Suszenie promieniem IR
  • IR drying

    150÷200µm: 10÷15 minutes under short wave.

    Do not exceed 60oC.
    Use as recommended by the equipment manufacturer.
    Wait about 10 minutes before starting the heater drying.

  • Szlifowanie na sucho
  • Dry sanding

    Machine sanding: P360÷P500.
    Manual sanding: P280÷P320.

  • Szlifowanie na mokro
  • Wet sanding

    Machine sanding: P600÷P1000.
    Manual Sanding: P800÷P1000.

  • Informacja
  • Further work

    2K acrylic primers can be directly over coated with:

    • 2K acrylic top coats.
    • 1K base coats.
  • Informacja
  • General notes
    • Do not exceed recommended doses of hardener!
    • The best repair results you can achieve at room temperature. Temperature in body shop and temperature of a product should be the same.
    • When working with 2K products, it is recommended to use personal protection equipment. Protect the eyes and air ways.
    • The rooms should be well ventilated.
    • Clean the guns and equipment immediately after use.

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

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