GROUT R4 RAPID Fast Drying Casting Mortar

Advantages

• Easy to apply and self-leveling.
• Sets within 30 minutes and ready for use in 75 minutes.
• High flowability ensures self-placement without voids.
• Non-shrink and suitable for layers up to 50 mm.
• Achieves high strength in a short time.
• Void-free structure provides high abrasion resistance and water tightness.
• Very resistant to equipment-induced vibrations and impacts.
• Fast curing allows quick service readiness.
• Resistant to thermal changes.

Application Areas

• Floor joints of machines, cranes, and steel structures
• Prefabricated concrete elements
• Repair areas such as columns and beams
• Manholes and heavy pedestrian traffic areas

Application Instructions

• Mix a 25 kg bag with 3.75–4.25 liters of clean water at low speed in a mixer. Add powder gradually and mix 2–3 minutes until homogeneous.
• Let the mixture rest 1–2 minutes before application.
• Use the mixture within 15 minutes.
• Apply to cement-based surfaces with a trowel horizontally and vertically.
• Surface must be free from dust and debris.
• Pre-wet the repair area lightly.
• Maximum single-layer thickness: 50 mm; wait at least 3 hours between layers.

Warnings and Recommendations

• Not suitable for metal surfaces.
• Do not add foreign materials.
• Do not apply outdoors if rain is expected.
• Protect from frost, sunlight, and strong wind for the first 24 hours (+5°C – +35°C).
• Clean all tools with water before the mixture dries.

Storage

• Packaging: 25 kg Kraft bag
• Color: Gray
• Shelf life: 12 months in dry, moisture-free conditions
• Keep sealed and protected from damage
• Protect from frost and direct sunlight

Consumption

• 2.1–2.3 kg/m² per 1 mm

Technical Properties

• Product Type: Cement-Based Powder
• Color: Gray
• Water Ratio: 3.75–4.25 L / 25 kg
• Application Thickness: 10–50 mm
• Full Curing & Service Time: Min. 75 Minutes
• Working Time: Min. 15 Minutes
• Standard Reference: TS EN 1504-3 / R4 Class
• Adhesion Strength: ≥ 2 N/mm²
• Compressive Strength: ≥ 45 N/mm²
• Flexural Strength: ≥ 7 N/mm²
• Soluble Chloride Content: ≤ 0.05%
• Restrained Shrinkage/Expansion: ≥ 2 N/mm²
• Fire Reaction Class: A1