FİXA PRIMEX – Economical Plaster Primer for Fair-Faced Concrete and Gypsum Surfaces

FİXA PRIMEX is an economical plaster primer formulated with acrylic polymers and quartz aggregates to provide excellent adhesion on fair-faced concrete and other low-absorbency surfaces. Applied before cement-based or gypsum-based plaster systems, it strengthens the bond between the substrate and the plaster, improving application performance and ensuring a more durable, long-lasting finish.

Product Description

FİXA PRIMEX has been specially developed to improve mechanical adhesion on low-absorbency substrates and make plaster applications more efficient.

The quartz particles in its formulation create a micro-textured surface that enhances the mechanical bond between the substrate and plaster mortar. Its acrylic polymer-based composition also improves water resistance while maintaining the surface's vapor permeability, allowing the substrate to breathe.

Technical Specifications

All technical values are based on laboratory test results specified in FİXA technical data sheets.

Areas of Application

• Primer before cement-based or gypsum-based plaster applications on fair-faced concrete
• Gypsum plaster, gypsum board, aerated concrete, masonry blocks, and chipboard
• Bonding primer for ceiling plaster applications
• Renovation projects and replastering of existing surfaces
• Suitable for both interior and exterior applications

Advantages

Excellent Adhesion Performance

Provides strong bonding on fair-faced concrete and other low-absorbency substrates.

Cost-Effective Solution

Offers reliable performance while providing an economical alternative for plaster preparation.

Ready-to-Use Formula

No mixing is required, allowing quick and convenient application.

Quartz Reinforcement

Creates mechanical anchoring that helps prevent plaster from separating from the substrate.

Moisture Control

Helps regulate moisture absorption during plaster application on absorbent surfaces.

Breathable Structure

Maintains vapor permeability without trapping moisture inside the wall.

Application Instructions

Surface Preparation

The substrate must be clean, dry, and structurally sound. Dust, form-release agents, loose particles, and any contaminants that may reduce adhesion must be completely removed.

Mixing

FİXA PRIMEX is supplied ready to use. Before application, stir briefly with a low-speed mixer until a homogeneous consistency is achieved.

Application

• Apply using a brush, roller, or spray equipment.
• Ensure complete and uniform surface coverage.
• Average drying time is 4–6 hours.
• Apply plaster only after the primer has fully dried.

Plaster Application

Once the primer has dried completely, cement-based or gypsum-based plasters can be applied directly onto the prepared surface.

Application Recommendations

• Do not apply at temperatures below +5°C.
• Protect the product from freezing conditions.
• Avoid application under direct sunlight.
• Do not apply on wet surfaces or during rainy or excessively humid conditions.
• Clean all tools and equipment with water immediately after use.
• Ensure the primer is completely dry before plaster application.

Frequently Asked Questions (FAQ)

1. What is the difference between FİXA PRIMEX and FİXA BETOPRIMER?

FİXA PRIMEX has been developed as a more economical plaster primer while offering similar adhesion performance for plaster applications.

2. On which surfaces can it be used?

It can be applied to fair-faced concrete, gypsum board, aerated concrete, masonry blocks, ceilings, and wall surfaces.

3. How long should I wait before applying plaster?

Under normal conditions, the surface is ready for plaster application after approximately 4–6 hours.

4. Is it suitable for exterior applications?

Yes. FİXA PRIMEX is suitable for both interior and exterior use.

5. What is the shelf life?

The product has a shelf life of 12 months when stored in its original unopened packaging under appropriate storage conditions.