Epoxy Primer 10:1

Epoxy filler

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art. nr.


quantity in box

light gray


1 kg + 100 g (hardener)


Gloss grade


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Bicomponent epoxy primer dedicated to fast body car repair. Perfectly isolates and protects against steel substrates.


  • Very good adhesion to various substrates.
  • Perfect anti corrosive protection.
  • Easy to mix and apply.
  • Possible to apply directly on steel substrates.


Epoxy Primer 10:1 can be applied over:

  • Bare steel and aluminum after flatting and degreasing.
  • Zinc coated steel after flatting and degreasing.
  • Sanded polyester-glass laminates (GFK/GRP) as well as epoxy-glass.
  • Polyester and epoxy putties.
  • Old finishes in good condition after flatting and degreasing.

Well prepared surface 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


mixing ratio by weight
Filler: 10 parts
Hardener: 1 part
Thinner: 20-30%

mixing ratio by volume
Filler: 10 parts
Hardener: 1,5 part
Thinner: 20-30%

spray viscosity
30÷50 sec in 20°C

mixture pot life
90 min / 20°C

2÷3 layer
ø1,5 ÷ 1,9 mm
ø1,6 ÷ 2,0 mm

between layers
approx. 10 min

before baking
approx. 15 min

hardening time
approx. 8 hrs at 20°C (depending on the layer thickness)
approx. 45 min at 60°C (depending on the layer thickness)

P360 ÷ P500


Application process


For car repairs.

Mixing ratio

mixing ratio by weight
Primer: 10 parts
Hardener: 1 part
Thinner: 20-30%

mixing ratio by volume
Filler: 10 parts
Hardener: 1,5 part
Thinner: 20-30%

Stir thoroughly until achieving homogenous mixture.

Spraying viscosity

30÷50 seconds at 20°C

Pot life

Approx. 1,5 hour at 20°C

Number of layers

2-3 layers,
RP gun parameters:
Nozzle: 1,6÷2,0 mm, Pressure: 2,0÷2,2 bar
HVLP gun parameters:
Nozzle: 1,5÷1,9 mm; Pressure: 2,0 bar

Evaporation time

between layers: approx.10 minutes
before baking: approx.15 minutes

Evaporation time depends on the temperature and the number of layers.

Hardening time

Approx. 8 hours at 20°C (depending on the layer thickness)
Approx. 45 min. at 60°C (depending on the layer thickness)

Temperature below 20°C significantly increases the hardening time.

IR drying

10÷15 minutes of short waves for the thickness of 150÷250 µm.
Do not exceed 60°C.
Use as recommended by the equipment manufacturer.
Wait about 10 minutes before starting the heater drying.

Dry sanding

By machine P360÷P500.
By hand P280÷P320.

Wet sanding

By machine P600÷P1000.
By hand P800÷P1000.

Further work

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

General notes

- Do not exceed recommended doses of hardener!
- The best repair results can be achieved 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 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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