Webercem Spray DS 25kg

Webercem spray DS – High Build R4 Structural Spray Concrete

webercem spray DS is a pre-bagged, polymer-modified, cement-based structural repair concrete designed for dry spray application.

Formulated for high strength, low rebound, and minimal wastage, it delivers efficient large-scale concrete repairs while achieving R4 classification to BS EN 1504-3.

Key Features & Benefits

• R4 structural repair concrete – meets BS EN 1504-3 requirements
• High build application – up to 150mm in a single pass
• Spray applied system – fast installation for large areas
• Low rebound & waste – cost-effective application
• High compressive strength – ≥45 MPa at 28 days
• Low permeability – resists water and chloride ingress
• Polymer modified – enhanced adhesion and durability
• Low dust formulation – improved on-site safety

Applications

webercem spray DS is ideal for:

• Large scale structural concrete repairs
• Highway structures – bridges, soffits, beams, columns
• Marine structures – piers, docks, seawalls
• Tunnels, viaducts, and mine shafts
• Fire-damaged concrete repair
• Structural encasement of steel reinforcement

As shown on page 2 of the datasheet, it is widely used across infrastructure, marine, and heavy civil engineering projects.

Technical Overview

• Type: Polymer-modified cementitious repair concrete
• Classification: R4 (BS EN 1504-3)
• Compressive Strength: ≥45 MPa (28 days)
• Application Thickness: 25mm – 150mm
• Yield: ~12 litres per 25kg bag
• Density: ~2160 kg/m³
• Bond Strength: ≥2.0 MPa
• Fire Rating: Class A1 (non-combustible)

Why Choose webercem spray DS?

Designed for high-performance structural repairs, this product allows contractors to repair large areas quickly and efficiently using spray application—while maintaining strength, durability, and compliance with industry standards.

Frequently Asked Questions (FAQs)

❓ What is webercem spray DS used for?

It is used for structural concrete repair, especially large-scale or complex repairs using spray application.

❓ What does R4 classification mean?

R4 is the highest class for structural repair mortars, suitable for load-bearing repairs.

❓ How thick can it be applied?

It can be applied between 25mm and 150mm in a single pass.

❓ Is it suitable for overhead and vertical repairs?

Yes, it is designed for vertical and overhead applications with minimal rebound.

❓ Where can it be used?

It is suitable for highways, marine environments, tunnels, and structural repairs.

❓ What is the compressive strength?

It achieves ≥45 MPa at 28 days, making it suitable for structural applications.

Downloads

Data Sheet