K-30 Zn

Polyester-epoxy putty for zinc coated steel

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Universal, filling polyester-epoxy putty designed especially for zinc coated steel and aluminum. Made with both epoxy and polyester resins, combines the best features of both materials, showing strong adhesion to difficult substrates, short curing time, easy sanding and smooth finish.


  • Extreme adhesion to difficult substrates.
  • Easy sanding.
  • Short curing time.


The product has very good adhesion to various substrates. It can be applied over:

  • Steel and aluminum after flatting and degreasing.
  • Zinc coated steel after flatting and degreasing.
  • Sanded glass fibre (GFK/GRP), polyester putties, acrylic and epoxy primers and existing coatings in good condition.

We recommend sandpaper with gradations: P80÷P120.

Caution:  Do not apply the putty directly on the wash primers, 1K acrylic and nitrocellulose products.

Important informations


mixing ratio by weight
100 : 2

pot life
4 ÷ 5 min. 20°C

hardening time
16 ÷ 26 min. 20°C

P100 ÷ P150
P180 ÷ P320

Application process


Fine and easy to work with putty for quick car body repairs. Dedicated for zinc-coated steel.

Mixing ratio by weight

Putty: 100
Hardener: 2
Stir thoroughly until achieving homogenous paste to not create air inclusions.

Layer thickness

Putty can be applied in several thin coats. After each of them the product should dry throughdo not exceed the thickness of 3mm.

Pot life is 4÷5 minutes at 20°C

Hardening time

16÷26 minutes at 20°C.

Temperature below 20°C significantly increases the hardening time.


Coarse sanding (dry): P100÷P150,
Finishing sanding (dry): P180÷P320.

IR Drying

5÷7 minutes of short waves, depending on the layer thickness and the type of radiator.
Do not exceed the temperature of 60°C.
Use as recommended by the equipment manufacturer.

Caution: Wait about 5 minutes before the IR drying process

Further work

Polyester putties can be over coated with:
- 2K polyester putties.
- 2Kpolyester spray fillers.
- 2K acrylic fillers.
- 2K epoxy fillers.

General notes

Excessive amounts of hardener will cause problems with bleaching of the top coat!
- The rooms should be well ventilated.
- Tools should be washed directly after application.
- Use personal protection equipment during the 2K products application. Protect
eyes and respiratory system.

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

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