I’ve spent 12 years standing on damp, freezing concrete slabs, listening to the hum of refrigeration units and the clatter of pallet jacks. If there is one thing that gets under my skin, it is hearing a project manager say, "We’ll just put a heavy-duty resin on it."
Heavy duty? What does that even mean? Does it mean a 2mm coating, or a 9mm trowel-applied screed? Does it mean it handles a forklift load of 2 tonnes, or is it just 'heavy duty' because the brochure had a picture of a warehouse in it? When I’m pricing a job, I don't care what the floor looks like on handover day. I care about what that floor sees on a wet Monday morning after a busy weekend of loading and thermal shock.
So, the question hits my inbox regularly: "Can MMA flooring be installed at -25°C in a cold storage facility?" Let’s cut through the marketing fluff and look at the engineering reality.
The Infrastructure Mindset
Stop thinking of your floor as decoration. A floor in a refrigerated facility is a piece of infrastructure—as vital as the racking or the compressor. If your floor fails, you aren't just looking at a patch-up job; you’re looking at downtime, potential health and safety violations, and a massive hit to your bottom line.
When you are operating at -25°C, you are dealing with extreme thermal cycling. The substrate expands and contracts. If your flooring system doesn’t have the chemical resilience and the physical elasticity to move with that substrate, you will get delamination. I’ve seen projects where installers have tried to force a standard epoxy at low temperatures, only to have it pop off the concrete like a sheet of ice within three months.
MMA: The Cold Storage Specialist?
Methyl Methacrylate (MMA) is the gold standard for rapid-turnaround, low-temperature installations. Because of its unique curing chemistry, it can https://tessatopmaid.com/how-much-does-epoxy-resin-flooring-cost-per-sqm-in-the-uk/ indeed be installed in sub-zero environments where other systems simply won't polymerise.
However, "can be installed" and "should be installed" are two different things. If you are working with firms like evoresinflooring.co.uk, they will tell you that the secret isn't just the product—it's the prep and the specific grade of MMA used for low-temperature applications. You cannot use a generic MMA in a -25°C freezer. You need a system specifically formulated for deep-freeze curing, and the application requires a surgical level of precision regarding moisture control.
The Four Pillars of Decision Making
Before you commit to a specification, you need to answer these four questions. If your contractor doesn't ask these, find a new contractor.
Load: Are we talking foot traffic, pedestrian electric stackers, or fully laden reach trucks? If it’s high-frequency forklift traffic, you need a system with high compressive strength, not just a thin layer of resin. Wear: What is the frequency of traffic? High-turnover cold stores see repetitive paths. You need to account for abrasion resistance. Chemicals: What is hitting the floor? Blood? Acids from produce? Cleaning agents? Thermal shock often makes surfaces more porous, increasing the need for chemical resistance. Slip Resistance: This is where most people get it wrong.The Slip Resistance Trap
It absolutely infuriates me when I hear someone talk about "R-ratings" as if they are the holy grail of safety. An R-rating is a laboratory test conducted on a ramp with oil. It tells you nothing about a wet, icy floor in a loading bay at 3:00 AM.
In the UK, you should be looking at PTV (Pendulum Test Value) ratings as mandated by the HSE. If your floor is in a zone that gets wet, you need to ensure the PTV is maintained under real-world conditions. A smooth resin might look great, but it’s a death trap. You need an anti-slip aggregate broadcast that stands up to cleaning regimes. If you’re getting prep work done by specialists like kentplasterers.co.uk for the surrounding perimeter or coving, ensure the whole system is integrated to meet those BS 8204 standards.
Preparation: The Only Way to Guarantee Adhesion
You can spend a fortune on the best MMA system in the world, but if your surface preparation is rubbish, your floor is doomed. I’ve seen contractors try to "key" the floor with a bit of sanding. Don't fall for it.
For industrial resin systems, you need a clean, open, dry surface. Two methods are non-negotiable:
- Shot-blasting: This is the industry standard for removing laitance and opening the pores of the concrete. It provides the mechanical profile that the resin needs to lock into. Grinding: Essential for edge work, corners, and areas where shot-blasting equipment can't reach.
If your estimator liquid DPM for concrete floors skips the moisture test, fire them. Concrete moisture content must be checked. Even at -25°C, if there is trapped moisture in the slab, that water will expand as it freezes, causing an internal rupture beneath your new floor.
System Comparison Table
Here is how the common systems stack up when you’re looking at a refrigerated facility upgrade.
System Cure Time Low-Temp Ability Durability Main Limitation MMA 1-2 Hours Excellent Very High Strong odour during install Polyurethane (PU) 12-24 Hours Poor (unless specialised) Extreme Long cure time Epoxy 24-48 Hours Non-existent Moderate Brittle in low tempsUK Compliance and BS 8204
In the UK, we follow BS 8204, the code of practice for in-situ flooring. If you are specifying for a commercial cold store, do not deviate from these standards to save a few quid. The cost of a floor failure in a cold store includes not just the replacement, but the loss of stock and the potential loss of your insurance coverage if you aren't compliant.
When I’m on site, I’m looking at the transition zones. The joints are where the floor fails first. I want to see expansion joints that are filled with flexible sealants, not just capped with resin. If the resin bridges the expansion joint, it will crack—guaranteed.
Final Thoughts: Don't Buy a "Floor," Buy a Performance System
If you're asking about -25°C installation, you’re clearly looking for a quick turnaround. MMA is your best bet, but it is not a "do-it-yourself" or "lowest-bidder" job.
Here is my checklist for your next project:
Specify the thickness, not the brand. If a quote doesn't say "6mm minimum," throw it in the bin. Insist on a moisture test. No moisture test, no warranty. Ask for PTV results. Not R-ratings. Tell them: "I want to know the PTV on a wet, soapy floor." Check the prep methodology. If they mention anything other than mechanical preparation (shot-blasting or diamond grinding), ask why.My final piece of advice? Go to the site on a wet Monday morning. Look at where the water collects. Look at where the forklift tyres turn. That is your floor. If you design for that moment, and not for the photographer’s lens on opening day, you’ll have a floor that lasts for years, not months.
Need advice on a specific project? Make sure your team is aligned with the realities of industrial infrastructure—because in cold storage, the floor is the foundation of your entire operation.