Fine-grained filler MIKROSFERA

Lightweight fine-grained ready for use filler for smoothing of concrete, gypsum boards, plaster and other mineral surfaces before painting with water-based dispersion paints and wallpaper. Recommended for the final finishing layer before painting.



Fine-grained filler MIKROSFERA

  • Water-based
  • Ready to use in a variety of applications
  • Easy to apply and smooth up to 3 mm thick layer
  • Excellent vapor permeability, quick drying, no cracking, elastic
  • Low water absorption ensures lower paint consumption
  • Easy to sand, less dust
  • Lightweight, convenient to use and transport
  • Suitable for sustainable construction


Ready to use light fine-grained polymeric filler for interior use. For levelling concrete, plasterboard, plaster and other mineral surfaces before water-based paints and wallpaper. The light fine-grained filler MIKROSFERA is suitable for manual application and MIKROSFERA Roll & Spray for spraying or rolling.
Recommended for both initial (on rough surfaces) and final smoothing.

Coverage rate

1 m²/l for 1 mm thick layer. Maximum thickness of one layer – 3 mm.


Technical data

Purpose: for interior use, dry areas
Binder: acrylic copolymer
Filler: dolomite, perlite
Solvent: water
Color: white, yellow white
Density: ~1,0 g/cm³ EN ISO 2811-1
Particle size: <0,150 mm
pH: 8,0-9,0
Quality standards and certificates: emission class M1 for building materials, CE marking EN 15824, EN 13963
VOC and SVOC: <0,5 g/l and <0,5 g/l EN ISO 11890-2
Formaldehyde concentration in filler: VdL-RL 03: 3 ppm or (3×10-4) %
Non–volatile–matter content: 48,0-50,0 % EN ISO 3251
Reaction to fire: A2-s1,d0 EN 13501-1
Adhesion: MPa ≥0,3 EN 1542
Non-existence cracks: no cracks EN 13963

Work tools: spatula, roller, airless spraying gun
Tool cleaning: with water
Application conditions: +10 °C to +25 °C and 35–80 % relative humidity
Coating thickness: 3 mm
Coverage rate: 1 m²/1 l for 1mm thick layer
Drying time (23 °C, 50 % RH): 1 mm dries in 3-4 hours and gains full strength in 28 days. Drying time depends on surface, layer thickness, air temperature and humidity, etc.

Surface preparation
The surface must be dry, capable of withstanding loads, stable and clean. Prime highly or unevenly absorbent surfaces with deep primer IGIS AG.

Stir well before use. Apply the second layer only when the first layer is completely dry. Before painting sand the filled surface and remove the dust.

Precautionary statements: keep out of reach of children, avoid release to the environment, wear protective gloves/ protective clothing/eye protective/face protective. IF ON SKIN: wash with plenty of soap and water. IF IN EYES: rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Additional hazard information: EUH208 – contains a mixture of 5-chlor-2-metil-2H-izotiazol-3-one and 2-metil-2H-izotiazol -3-one (3:1), 1,2-benzisothiazol-3(2H) -one, can cause allergy in humans.

Shelf life in tightly closed original packaging: 1 year from the date of manufacture

Storage and transportation conditions: store the product tightly closed in dry well-ventilated place at a temperature of +5 ⁰C to +30 ⁰C, protect against from damage, frost and direct sunlight.

Waste management
Do not pour into drains, water or soil. Empty, dry product package should be recycled or disposed of in accordance with national law.

1 l, 3 l, 10 l, 17 l buckets, 17 l bags
17 l buckets, 17 l bags


Mikrosfera Product Data Sheet

Mikrosfera Safety Data Sheet

Mikrosfera Declaration Of Performance