Ideal undercoat for surfaces to be painted with emulsion paints. It has got great adhesion and is ideal for gypsum board, plaster, cardboard, spatula treated surfaces etc. It reinforces the adhesion ofenamel paints and reduces their consumption. Due to its acrylic composition it can be used without a problem on exterior walls, too. For painting emulsion paints on surfaces painted with HYDROCHROMA its use is necessary.
NEW PACKAGING!
, UNCHECK, 
STEP PRIMER
acrylic emulsion undercoat
Packaging:
375ml, 750ml, 3Lt, 10Lt
Finish:
Matt
Shades:
Available in white and coloured
https://chromodomi.gr/en/color-fan-irida-1000/
https://chromodomi.gr/en/color-fan-irida-pocket-300/
https://chromodomi.gr/en/color-fan-ral-shades/
Technical Information
THINNING:
300% water
COVERAGE:
20-25m2 / Lt on properly prepared surfaces
DRYING:
1 – 2 hours depending on conditions
Files
Technical data sheet
https://chromodomi.gr/wp-content/uploads/2025/05/STEP-PRIMER-TDS-EN.pdf
Application Tools
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To ensure proper adhesion of the product, surfaces must be clean, dry and free from all defective and poorly adhering material, dust, grease, oil, rust, mold or moisture etc.
Apply the product with brush or roll and let it dry for 1 – 2 hours.
Apply the top coat.
The product has all the mechanical strength after 20-30 days
APPLICATION CONDITIONS
Do not apply at temperatures below 6°C and above 40°C and at relative humidity above 80%. Adverse conditions in the application can alter the final properties of product.
During working keep tools “liquid” in the container. Drain well the product of the tools back in the box and clean immediately with warm water and soap. If product dries, clean only with strong detergents. Do not empty washings into the groundwater
