Interior Strong Finish 20

Interior Strong Finish 20

Flügger Interior is water-based enamels for finishing wood and metal indoors. The products are easy to use, and produce an attractive and enamel-like surface.

Product Description

PU reinforced enamel with a rich consistency and optimum coalescence. Recommended for subjects where there are particularly high aesthetic and functional requirements.
  • Optimal coalescence
  • Scratch-resistant surface
  • Semi-matt surface


Cupboard doors, table tops, doors, door frames, casings, skirting boards, windows, recesses, windowsills, panels and furniture and iron and metal with anti-corrosion protection.
Can also be used outdoors on corrosion-protected iron and metal.


Must be primed, clean, dry, solid and suitable for paint treatment.


Remove loose material and paint by cleaning and sanding.
Remove dirt, filth, grease and chalking material with Fluren 37.
Water-soluble discolouration, nicotine and soot can be cleaned with Fluren 49 and treated with Iso Primer.
Hard, smooth substrates must be sanded matt and primed if needed with Fix Primer.
Cracks, unevenness and holes must be filled.
New or bare cleaned wood must be primed with Stop Primer.
Apply 1-2 coats. Some colours require additional treatments.


Brush, roller or spray
Choose appropriate tools for the desired finish
Apply wet-on-wet, and finish by brushing/rolling in the same direction
Always use the same batch number for continuous/unbroken surfaces
Differences in surface texture may result in shade deviations
Cold or heat can affect the material’s viscosity
Material temperature when spraying must be min. 12 °C.
Condensation must not form during drying/curing
Cold weather and high atmospheric humidity extend the drying time, complete curing and re-coat interval
High temperature and low atmospheric humidity reduce the drying time and complete curing
Always apply test treatments to check and accept the adhesion and results


Semi-matt particularly robust, scratch-resistant and waterproof surface.
Optimal coalescence and enamel like finish.
Withstands increased soiling, use-related wear and cleaning with universal detergent, a soft brush, water and a cloth.
Strong, especially dark shades are more delicate than light colours by wear and touch.
Chalking due to surplus pigment may occur.
Does not block strike-through from knots, water-soluble colourants, water blotches or nicotine.
Treat the surface with caution until the paint is fully cured.

Environmental information

Clean off the paint from tools and wash them with water. Bring remains of fluent paint to the local recycling centre. Minimize your paint waste by pre-estimating how much paint you need. Keep the leftover paint for future use so you can effectively reduce the environmental impact.

Storage: Cool, frost-free and tightly closed

Protection equipment: Spray painting: painting suit, full face mask with combined filter. Painting: eye protection, gloves. Sanding: respiratory protection

Technical Data

20, Semi Matte
Density (kg/liter)
Weight %
Volume %
Nominal spreading rate (m2/l)
Workable temperature
Min. +10°C
Max. humidity 80 % RH.
Dry to touch at 20°C, 60% RF (Hours)
Fully cured at 20c, 60% RF (Days)
Water. When spraying, do not dilute.
Cleaning of Tools etc.

Current TDS Version

mai 2021

Replaces TDS Version

oktober 2020