Eternit Primer

Primer for fibre cement roofs.

  • Penetrates well
  • Improves adhesion
  • Easy and safe to use
  • 858
  • 5 m²/l
  • 7 m²/l
  • 1 h


  • Full matt


Primer for fibre cement roofs.

Product Features

Eternit Primer is a waterborne primer for fibre cement roofs, especially suitable for older very absorbent roof plates. Eternit Primer penetrates into the fibre cement plate and ensures good adhesion of the topcoat. Eternit Primer should always be overcoated with Isonit 12, 20, 50 or Rubber. Rubber is especially recommended for degraded primed fibre cement plates.

Recommended Uses

Eternit Primer is used on fibre cement, fibre cement slates and concrete. Eternit Primer is not suitable for use on clay tiles or natural slate.


5-7 m²/l (1 layer) The practical spreading rate depends on application method, form and surface of the material.



Application Method

spraying, brush, roller


Store in a cool place, protected from frost in tightly closed original containers, and out of reach for children.

Application Conditions

The temperature must be between 8° C and 30° C and relative humidity <85 % RH.

Surface preparation

Roofs to be primed with Eternit Primer should be thoroughly cleaned using high-pressure washer and Iso A-Clean.


First coat:

To ensure the optimum layer thickness, apply the paint in two layers. Allow sufficient drying time between applications. Always make a test coat to ensure the compatibility of product and surface.

Cleaning of tools

Clean tools with water and detergent.


Avoid spillage into drains, water systems and soil. Destroy liquid waste according to the local regulations. Recycle or dispose of empty, dry cans in accordance with local regulations. VOC: Max. 30 g/l (Kat. A/h)

Penetrates well

Especially suitable for rather old, very absorbent roof plates. The primer penetrates into the fibre cement plate, encapsualtes fibres and fills microscopic holes in the surface.

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Master solution

Improves adhesion

Ensures good adhesion to subsequent topcoat: Isonit or Rubber. Rubber is especially recommended for degraded primed fibre cement plates.

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Master solution

Easy and safe to use

Waterborne - Low VOC.

Product usp3prof_img
Master solution

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