Primacem Flex 25L

Primacem® Flex is a ready-to-use styrene-butadiene primer in aqueous dispersion, designed as a bonding bridge between new and old mortars and to improve adhesion in microcement and continuous coating applications. It increases the mechanical properties of the substrate, promotes cohesion, and ensures an effective bond between layers without prior dilution.

Main characteristics

1. Effective bonding bridge between new and old mortars.
2. Significantly improves the adhesion of mortars and continuous coatings.
3. Ready-to-use product, no dilution required.
4. Water-based, without plasticizers, solvents, or ammonia.
5. Yield of 10–12 m²/L.

How to use

1. Prepare the substrate, ensuring it is clean, dry, and free of grease, oils, rust, or loose paint.
2. Shake the product before use.
3. Apply a uniform coat with a brush, roller, or sprayer, avoiding excessively thick coats.
4. Allow to dry until "tack" effect before applying mortar or coating.
5. Apply at temperatures between 5 °C and 30 °C, and substrate temperature between 5 °C and 25 °C, without excessive wind.

Yield

10–12 m²/L on leveled and good condition substrates.

Technical specifications

• Nature: Styrene-butadiene in aqueous dispersion
• Appearance: Milky white liquid
• Non-volatile solids: 34–35 %
• Density: 1.02 ± 0.05 g/cm³
• Application temperature: 5–30 °C (substrate up to 25 °C)
• Drying: until tack effect without track
• Tools: brush, roller, or sprayer

Storage conditions

Store in original closed container, in a dry, well-ventilated place, protected from direct light and temperatures between 10 °C and 30 °C.
Shelf life: 12 months.