4m Floors: Large-Scale Resin Flooring Installation – Full Preparation, Screed and Epoxy Finish

Kev Johnson
7 days ago
4 min read

4m Floors UK Resin Flooring

Project Overview

At 4m Floors UK, we were recently brought in to complete a large-scale industrial flooring installation within a newly developed commercial unit. The project required a full preparation and installation package, transforming a rough, uneven concrete substrate into a durable, seamless epoxy resin floor suitable for long-term use.

From initial inspection through to final coating, this job showcased the importance of correct preparation, moisture control, and system build-up to achieve a high-performance finish.

Initial Substrate Condition

Upon arrival, the existing concrete slab presented several challenges that needed to be addressed before any resin system could be applied.

The substrate showed:

Visible cracking across multiple bays
Uneven levels throughout the floor
Surface contamination and laitance
Signs of moisture within the slab

As seen in the early-stage images, the floor required a full preparation programme to ensure the new system would bond correctly and perform under future load conditions.

Crack Repairs and Surface Preparation

The first stage of the project involved detailed crack repair work. All structural cracks were opened up and treated using a resin repair system to stabilise the substrate and prevent reflective cracking through the finished floor.

These repairs are critical in large commercial spaces, particularly where movement joints and structural stresses are present.

Following crack repairs, the entire surface was mechanically prepared using industrial grinding equipment. This process removed contaminants, laitance, and weak surface material, leaving a clean, mechanically keyed substrate ready to receive the next stage.

Moisture Control with Epoxy DPM

Due to the presence of moisture within the slab, it was essential to install a damp proof membrane before proceeding with further layers.

We applied a high-performance epoxy DPM system to control residual moisture and allow the installation of subsequent resin layers. This step is vital when working on concrete substrates with high relative humidity.

The system used is capable of handling substrates with moisture levels up to 97% RH, providing a reliable barrier and ensuring long-term adhesion of the flooring system .

Levelling with Industrial Screed

With the substrate stabilised and moisture controlled, the next stage involved levelling the floor using a high-performance screed system.

We installed a fast-drying industrial screed across the full area, designed to:

Correct uneven levels
Provide a smooth, consistent surface
Improve load-bearing performance

This type of screed can typically be installed between 5–30mm thickness, with an average of around 8mm depending on the condition of the base slab .

The screed was applied efficiently across the entire floor, creating a solid foundation for the final resin finish.

Screeded SL floor ready for resin application

Epoxy Coating Application

Once the screed had cured sufficiently, we moved on to the application of the epoxy coating system.

A high-build epoxy coating was selected for this project due to its durability and resistance to mechanical and chemical wear. These systems are ideal for commercial and industrial environments where long-term performance is essential.

The coating was applied in multiple layers using a combination of squeegees and rollers to ensure an even finish across the entire surface.

High-build epoxy coatings offer:

Excellent resistance to heavy traffic
Strong adhesion to prepared substrates
A seamless, easy-to-clean finish
Long-term durability under demanding conditions

Finishing and Final Appearance

The completed floor delivered a clean, uniform, and professional finish across the entire space.

The light grey epoxy coating enhances visibility within the unit while providing a tough, hard-wearing surface suitable for a wide range of commercial uses.

Expansion joints were maintained and clearly defined, ensuring the floor can accommodate structural movement without compromising the integrity of the system.

End Result

The transformation from a rough, cracked concrete slab to a fully finished resin floor demonstrates the importance of a structured installation process.

By addressing each stage correctly—from preparation and moisture control through to screeding and coating—we delivered a flooring system that is:

Durable and long-lasting
Resistant to wear and tear
Easy to maintain and clean
Visually consistent and professional

This project is a great example of how the right system build-up can completely upgrade a commercial space, ready for immediate use and future demands.

Large warehouse floor with resin application and joints.

Why Preparation Matters

One of the key takeaways from this project is the importance of preparation. No matter how good the final coating is, the success of any resin flooring system depends on the condition of the substrate beneath it.

By investing time in:

Proper crack repairs
Mechanical preparation
Moisture management
Accurate levelling

…we ensured the finished floor would perform exactly as intended.

4m Resin Flooring Contractors for Over 30 Years

For 30 years, 4m Floors UK has been at the forefront of delivering specialised resin flooring solutions that combine durability, aesthetic appeal, and cost-efficiency. Whether you need a robust industrial floor, a decorative car park surface, or a sanitary environment, our expert team is equipped to meet your needs.

At 4m Floors UK, we take pride in being a trusted name in resin flooring contractors, offering a comprehensive range of services tailored to large projects. From terrazzo installations to floor signage, manufacturing flooring, car park solutions, and food and beverage flooring, our expertise and versatility enable us to meet the unique needs of various industries. Contact us today to discuss your project requirements and experience the difference our quality resin flooring solutions can make.