Sika® Primer-21 W

Epoxy based primer

6 months from date of production

In undamaged original sealed packaging, in dry cooled conditions.

~1.1 kg/l

Absorbant surface:

• Concrete
• Cementitious screeds
• Gypsum, plasterboard, anhydrite
• Wood and chipboard before applying adhesives
• Skimming plaster or cementitious self-leveling compounds

Non absorbant surface:

• Ceramic tiles (glazed bricks, polished stoneware, etc.)
• Epoxy coatings
• Stone materials
• PVC
• Linoleum

+5 °C min. / +35 °C max.

+5 °C min. / +35 °C max.

1. The applied product must be tack-free prior successive application.

100–150 g/m² depending on the substrate absorption.

• Shake properly before using the product.
• Apply Sika® Primer-21 W in only one layer with a brush, flat brush or roller until the surface in question has been fully covered. Untreated areas will be easily seen thanks to the light blue color of the product.
• Sika® Primer-21 W must be diluted with water in a ratio of 1:1 in case of absorbent substrates.

Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.