Naturcem® High 5L Yellow

Naturcem® High 5 L Yellow is a surface retarder for concrete that allows for the controlled exposure of aggregates, achieving textured and non-slip finishes. Its water-based, biodegradable, and solvent-free formula makes it an ideal solution for decorative pavements, urban areas, sidewalks, and outdoor surfaces with aesthetic requirements. This product perfectly complements technical pavements such as Stonecem® Floor, offering a natural and high-performance finish.

Main features

• Ready-to-use product, no dilution required.
• Biodegradable, solvent-free, and no harmful emissions.
• Surface etching level grade 5, suitable for 14–18 mm aggregates.
• Compatible with warm or windy weather conditions.
• Does not damage adjacent non-porous surfaces.
• Provides decorative finishes with natural texture and good resistance.

How to use

1. Prepare the substrate by smoothing the fresh concrete to obtain a uniform surface.
2. Shake the product before applying.
3. Spray with a 0.79 mm nozzle at a pressure between 2 and 4 bars, maintaining a distance of 20 to 40 cm.
4. Apply after the bleed water has disappeared, approximately 30 minutes after pouring.
5. Allow to act for 3 to 24 hours, adjusting the time according to temperature and wind.
6. Wash with pressure water (100–150 bars) at a 45° angle, removing the surface laitance and exposing the aggregate.

Yield

Between 5 and 6 m²/L, depending on the porosity of the substrate, the type of cement, and environmental conditions.

Technical specifications

• pH: 3–5
• Solids by weight: 23 ± 5%
• Density: 1.03 ± 0.01 g/cm³
• Viscosity (Ford Cup 4 mm): 24 ± 2 s
• Minimum application temperature: > 5 °C
• Touch dry: 1–2 h
• Recommended cleaning: between 3 and 24 h after application

Storage conditions

Store in its original closed container, in a dry and ventilated place, between 10 °C and 30 °C. Protect from freezing and direct sunlight. Shelf life: up to 12 months from manufacture.