ISOMAT BLOCK-PRIMER - High-Penetration Acrylic Primer

Product Overview

ISOMAT BLOCK-PRIMER is a premium, water-based acrylic stain-blocking primer engineered to seal difficult stains and prevent them from bleeding through topcoat paints. Designed for high penetration and strong surface adhesion, it creates an opaque protective barrier over tough water-soluble and oil-based marks.  

Ideal for interior and exterior surfaces prior to overcoating with emulsion paints, ISOMAT BLOCK-PRIMER permanently locks in stubborn blemishes, so your finish coat stays fresh and flawless.  

Key Benefits

• Superior Stain Blocker: Effectively seals in smoke, nicotine, soot, exhaust fumes, watermarks, and marker stains to eliminate bleed-through.  
• High Opacity & Adhesion: Provides excellent coverage while bonding strongly to porous substrates.  
• Low Odor & Water-Based: Environmentally friendly and easy to apply indoors with quick cleanup.  
• Preps for Emulsion Topcoats: Serves as the perfect base layer for water-based wall and ceiling paints.

Key Specifications

• Base: Acrylic polymer emulsion
• Colour: White  
• Coverage: Approx. 11–16 m²/L per coat  
• Drying / Recoat Time: 1–2 hours (touch dry)  
• Packaging Options: Available in 0.75 L and 3 L tubs  

Application Instructions

1. Preparation: Ensure the substrate is dry and clean of loose material, oil, and dust.  
2. Dilution: Can be thinned up to 10% with clean water for standard surface priming. Apply undiluted over severe or heavy stains for maximum blocking power.  
3. Application: Apply evenly using a brush, roller, or airless spray. Allow to dry completely before overcoating with your desired emulsion paint.