Kerakoll Active Prime Fix Primer 1kg - 5kg

• Highly fluid with excellent stabilizing and impregnating properties.
• Compatible with both absorbent and non-absorbent substrates.
• Fast drying time.
• Ideal for consolidating dry, dusty surfaces.
• Reduces and regulates absorption in porous substrates, enhancing the workability of leveling compounds, self-leveling products, and mineral adhesives.
• Effective in neutralizing the expansive chemical reactions of gypsum- and anhydrite-based substrates when used with self-leveling compounds, adhesives, finishing products, and mineral plasters/renders.

A fast-acting universal adhesion promoter for self-leveling compounds, cement-based adhesives, finishing products, and plasters/renders. This single-component, water-based solution is suitable for both indoor and outdoor applications.

Active Prime Fix's advanced cross-linking technology ensures complete compatibility with both absorbent and non-absorbent substrates, delivering exceptional adhesion when used with cement- and gypsum-based mineral products.

Areas of Application and Intended Use

This product is designed to prepare both absorbent and non-absorbent surfaces before applying self-leveling compounds, mineral and cement-based adhesives, finishing products, plasters/renders, and fluid mortars. Its primary function is to enhance adhesion to the substrate. Additionally, it regulates the absorption of highly porous surfaces before the installation of ceramic tiles using mineral and cement-based adhesives, or before applying leveling compounds, finishing products, plasters/renders, and cement- or gypsum-based self-leveling products. It also acts as a barrier to neutralize the expansive chemical reactions in gypsum- and anhydrite-based substrates. Suitable for both interior and exterior use.

Compatible Overlay Products:

• Fluid mineral mortars and fluid mortars
• Mineral and cement-based adhesives
• Cement- and gypsum-based finishing, leveling, and self-leveling products
• Cement- and gypsum-based plasters/renders
• Rainproof waterproofing products from the Bioscud range

Suitable Substrates:

• Ceramic floors and wall coverings, marble tiles, and natural stone
• Concrete floors smoothed with circular grinding machinery
• Compact and stable cement- and anhydrite-based screeds
• Prefabricated concrete and freshly cast concrete surfaces
• Wooden paneling and hardwood floors
• Gypsum brick and plasterboard panels
• Metal substrates on rigid supporting surfaces
• Flooring with residual traces of resin-based adhesives
• Epoxy resin flooring
• Varnished surfaces
• Rigid PVC floors and wall coverings

Limitations:

Do not apply on highly flexible substrates or those prone to significant dimensional changes, moist or moisture-prone substrates, or substrates containing residual bleeding, such as cement-, gypsum-, or anhydrite-based surfaces. Additionally, avoid using on magnesian substrates, or for overlaying with semi-dry mortars or plasters/renders with high grain size.