Mapei Mapegrout Fast-Set - Fibre-Reinforced Repair Mortar

£47.07

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Mapei Mapegrout Fast-Set is a rapid-setting, fibre-reinforced repair mortar for structural concrete. Suitable for 10–70mm applications, it's traffic-ready in just hours and ideal for urgent infrastructure repairs. Shrinkage-compensated and high-strength for durable, crack-resistant performance.

Size

25Kg

Product variants

Delivery and Shipping

Place your order before 3pm for next working day delivery.

Please note: Additional delivery charges may apply for Northern Ireland, Isle of Wight, Isle of Man, Isles of Scilly, Scottish Highlands & Islands, and Channel Islands. We will contact you to inform you of any additional costs once your order is received, or you can call us on 0800 111 4898 beforehand to confirm.

Description

Rapid-Setting, Fibre-Reinforced Repair Mortar for Structural Concrete Restoration

Mapei Mapegrout Fast-Set is a high-performance, rapid-setting, fibre-reinforced, shrinkage-compensated cementitious repair mortar designed for structural concrete restoration. Formulated for horizontal and vertical repairs, it allows traffic or further work just hours after application, making it ideal for time-sensitive civil engineering, infrastructure, and industrial flooring projects. Suitable for thicknesses from 10mm to 70mm in a single layer.

Key Features & Benefits

Rapid Strength Gain: Ready for light traffic in 2–3 hours, and heavy traffic in 24 hours.
Fibre-Reinforced: Enhanced crack resistance and structural integrity under load.
Shrinkage-Compensated: Minimises cracking and ensures dimensional stability during curing.
High Mechanical Strength: Excellent compressive and flexural strength for long-term durability.
Multi-Surface Application: Suitable for floors, ramps, roadways, loading bays, and pre-cast units.

Product Details

Type: Rapid-setting, fibre-reinforced cementitious repair mortar
Form: Grey powder
Packaging: 25kg bags
Layer Thickness: 10mm to 70mm in a single layer
Pot Life: Approx. 15–20 minutes at 20°C
Foot Traffic: After 2–3 hours
Heavy Traffic: After 24 hours
Compressive Strength: > 50 MPa at 1 day
SKU: MAPFAST25

Application Instructions

Substrate Prep: Clean and roughen concrete surface. Remove all deteriorated material, dust, oil, and contaminants.
Mixing: Add 3.5–4.0 litres of clean water per 25kg bag and mix with a mechanical mixer until smooth and lump-free.
Application: Apply with a trowel or float in one layer up to 70mm. Compact well to ensure full adhesion.
Finishing: Smooth the surface as required. Protect from rapid drying and rain during initial curing.

Limitations

Not suitable for pours deeper than 70mm in a single layer — apply in successive layers if needed.
Do not add cement or admixtures.
Do not apply at temperatures below +5°C or above +35°C.

Health & Safety

Contains cement — avoid skin and eye contact. Use appropriate PPE such as gloves, goggles, and dust mask. Refer to the Safety Data Sheet (SDS) for full safety information.