F 6.4

F 6.4


BasePrime is a quick-drying, oil-based primer for use on wooden floors in commercial, residential or sports areas.

Excellent for wooden floors where water-based primers cannot be used due to poor adhesion, for example exotic and oily timbers. The primer is also recommended for renovating dark coloured, patterned floors.

BasePrime gives the floor more depth of colour and should only be used directly on bare wood.

Protective coats with one of Junckers' water-based or oil-based floor lacquers have to be applied after priming.

For professional use only.


Product: Priming lacquer based on alcohol-solvent.

Package sizes: 5 litres.

Appearance: Colourless when dry.


Coverage: 10 m² per litre.

Before application: Shake/stir well before use.

Application tools: Brush or short-pile roller. Don’t apply by pouring out the lacquer directly onto the floor.

Substrate temperature: Minimum 15 °C.

Dilution: Delivered ready for use. Dilution is not recommended.

Drying time at 20 °C and 50 % RH:
Dry to touch after approx. 15 minutes.

Cleaning of tools: White spirit.

Storage: Lasts for 2 years if unopened and stored at 20 °C. Once opened the lacquer will start to form a skin and may harden in the can.


High traffic areas:
1 coat BasePrime 10 m²/litre + 2 coats HP Commercial or Strong 10 m²/litre.

Low traffic areas:
1 coat BasePrime 10 m²/litre + 2 coats ProFinish or ProTech 10 m²/litre.

Sport areas:
1 coat BasePrime 10 m²/litre + 2 coats HP Sport 10 m²/litre.


Untreated/sanded floors:
Ensure that the surface is absolutely clean, dry and free from dust, wax, grease, polish etc. Sand the surface to remove dirt and irregularities. The final sanding should be carried out by using sandpaper grit 120-150. Vacuum thoroughly and wipe off with a cloth well wrung in clean water.

  • Prime with one coat of BasePrime and leave to dry.
  • Sand with sandpaper grit 150-180 along the fibres of the wood.
  • Vacuum sanding dust and wipe off with a cloth well wrung in clean water.
  • Apply 2 finishing coats of top-lacquer according to one of Junckers' system recommendations.

Previously sealed floors:

  • Machine sand the floor by using sandpaper grit 24-36 to strip old coats.
  • Then remove abrasion marks with grit 60-80.
  • Proceed as described under “Untreated/sanded floors”.


Before using the product, read the label on the container carefully and observe the recommended precautionary measures.

See Material Safety Data Sheet for detailed information. 


F 4.2 - Junckers ProFinish
F 5.1 - Junckers Strong
F 6.2 - Junckers ProTech
F 8.2 - Junckers HP Sport
F 8.5 - Junckers HP Commercial