Tikkurila Eternit Primer is a water-based primer specifically designed for roofs constructed from fiber cement boards, with a particular focus on older, highly porous roof boards. This primer serves to bind the substrate and effectively fill in the microscopic pores on a thoroughly cleaned surface. It is essential to always apply a topcoat of either Tikkurila Isonit 20 or Tikkurila Rubber over Tikkurila Eternit Primer. This product is especially recommended for use on previously primed fiber-cement boards that may have some damage.

Key Features:

1. Excellent Penetration: Tikkurila Eternit Primer is ideal for use on older and very porous fiber-cement boards. It effectively penetrates the roof surface, envelops the fibers, and fills in the minuscule imperfections in the material.

2. Enhanced Adhesion: It ensures strong adhesion of the subsequent topcoat, whether you choose Tikkurila Isonit or Tikkurila Rubber. In cases where you're painting primed fiber-cement boards that are in poor condition, Tikkurila Rubber is recommended.

3. User-Friendly and Environmentally Safe: Tikkurila Eternit Primer is water-soluble and has a low content of volatile organic compounds (VOCs), making it a user-friendly and environmentally conscious product.