Kiilto Medium
Renovation filler

Ready-mixed plaster for dry indoor walls and ceilings. Good adhesion also to painted surfaces. Suitable for fixing reinforcing tape on gypsum boards.

Special features

  • universal filler
  • for scratches and max. 5 mm holes
  • overall application max. up to 3 mm
  • sandable after 2–3 h from filling, final drying time 2–3 h/mm
  • can be painted or wallpapered




Kiilto Medium is a water-based, ready-mixed plaster for finishing walls and ceilings prior to painting or wallpapering. Suitable also for fixing and smoothing reinforcing tapes to gypsum board plates. We recommend painting the surface before wallpapering to aid future removal. Complies with the requirements of EN 13963:2005 and EN 15824:2009 standards. Kiilto Medium is suitable for finishing gypsum boards and other construction boards as well as concrete, render and levelling coated substrates.

Package Size EAN Code
400 ml 6411512012506
Bond strength

> 0.3 MPa (EN 18524)

Classifications and certificates

stress grading RL01...RL04 of paintable surfaces (The RYL Code of building practice 2012)


Light grey


One tube covers approx. 0.4 m² area (1 mm thick layer) or approx. 600 small holes (10 mm x 10 mm x 5 mm).

Fire class

A2-s1, d0 (EN 13963)

Flexural strength

> 320 N (EN 13963)

Layer thickness

3 mm, in holes 5mm

Package sizes

400 ml plastic tube


In unopened containers, above +1 °C, for 1 year.

Working conditions

normal room conditions, lowest operating temperature +10 °C

Instructions for use

The surfaces to be plastered must be clean, dry and free from dust. A new coat should not be applied until the previous one is dry. If needed, the surface must be sanded and sanding dust removed carefully before applying the next layer.

Additional information

The information given in this product data sheet is based on our tests and our practical knowledge. The technical data is defined in standard conditions. Variations in local working conditions and methods will affect the product performance and result. We guarantee the high quality of our products according to our Quality Management System. No liability can be accepted from incorrect use of the product or prevailing conditions, over which we have no control. Thus, we cannot be held responsible for the final result. The correct use of the product presupposes that the user has made him/herself aware of the contents of the working instructions and procedure guide, if provided.

Environment and safety

Avoid unnecessary skin contact and exposure with the fresh product, use safety gloves. Refer to material safety data sheet. For information on product and package disposal, visit

M1 emission classification for building material
CE marking