Kiilto Pro Keraprimer
Primer for waterproofing membranes

Improves Kiilto waterproofing membranes’ adhesion to substrates which are suitable for wet rooms, for example, smoothing compounds, concrete and board. Water-soluble

Special features

  • primer for Kiilto waterproofing membranes
  • yellow colour
  • water-based




Adhesion-improving primer prior to applying Kiilto waterproofing membranes.

Package Size EAN Code
1 l 6411512120010
3 l 6411512120034
10 l 6411512120102
Application temperature

+10–25 °C


1 l diluted 1:1 with water covers approx. 16 m²
1 l undiluted covers approx. 8 m²

Curing rate

1–2 h depending on the prevailing conditions

Density/specific weight

approx. 1

Frost resistance


Mixing ratio

Smoothing compound or concrete substrate: 1:1 diluted with water
Gypsum board: undiluted
Other absorbent board substrates: 1:1 diluted with water
Non-absorbent board substrates: undiluted
Coarse concrete or masonry: smooth with a cement based Kiilto levelling compound

Package sizes

1 l, 3 l, 10 l


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

Instructions for use

Remove cement laitance, existing surface materials, sanding dust, loose particles and grease from the subsurface. Sand or grind by machine, if necessary. Apply the primer as a thin, even layer onto the surface by using, for example, a roller, brush or trowel. Rub firmly. The primer layer must be dry before the membrane is applied. Study the Kiilto waterproofing procedure guide before starting the job.

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