PU MF: solvent-free self-leveling PU flooring
A 3-component, solvent-free self-leveling polyurethane floor with a smooth, seamless surface. It resists chemicals and withstands -40 to 120°C, suiting food, beverage and pharmaceutical plants and areas that must be kept very clean.
- Solvent-free, 100% Solids
- Chemical resistant + withstands -40 to 120°C
- Smooth, seamless and easy to clean
- Strong adhesion (concrete fails before the bond)
What is PU MF?
PU MF (PU Self-Leveling) is a 3-component, solvent-free polyurethane floor system. It is used to waterproof floors, seal concrete pores and serve as a chemical-resistant finish coat, giving a smooth, attractive, seamless surface.
With more flexibility and a wider temperature tolerance than standard epoxy, PU MF is particularly well suited to food, beverage and pharmaceutical plants, cold rooms and areas with frequent chemical exposure or temperature changes.
Key properties
Excellent adhesion
Bonds very well to concrete, with a tested bond strength of 31 N/mm² (concrete fails before the bond).
Chemical resistance
Resists acids, alkalis, oils and process chemicals well.
Wide temperature range
Usable from -40°C to 120°C, suiting cold rooms and hot areas.
Smooth, seamless surface
Resists the build-up of dirt and germs, and is easy to clean and hygienic.
Solvent-free
100% Solids formula with low odor, safer for users and the environment.
High compressive strength
Compressive strength of 51 N/mm² for heavy use in plants.
PU MF system build-up, layer by layer
A self-leveling system does give a smooth surface, but how long that smoothness lasts depends on the layers underneath that you cannot see.
Primer
A low-viscosity primer soaks into the concrete pores and seals the air voids that would otherwise rise as pinholes in the layer above.
PU Self-Leveling layer
The 3-component polyurethane is poured and spread to the specified thickness, and the material flows and levels itself into a smooth, seamless surface.
Releasing air bubbles
A spike roller is run over the material while it is still flowing, to release air bubbles before it sets.
Edge finishing and Cove Base
Wall edges are finished with a continuous cove, reducing hidden corners where dirt collects. This is especially important in food and pharmaceutical plants.
PU MF / LF / HF: which should you choose?
These three systems are made for different jobs. Choose based on how the area is actually used, not on price alone.
PU MF — self-leveling
A smooth, seamless surface, more hygienic than LF or HF. Suited to food, beverage and pharmaceutical plants and cold rooms.
PU LF — thin film
Low cost and fast to install, focused on sealing the surface against dust. Suited to warehouses and light- to medium-duty areas.
PU HF — extra thick
Takes impact and forklift wheels. Suited to heavy industrial plants and warehouses with constant vehicle traffic.
Judge by use, not price
Choose a system that is too thin for a heavy-duty area and you will have to redo it sooner, so it ends up costing more than getting it right from the start.
Consider temperature too
PU MF works from -40°C to 120°C, which makes it a primary choice for cold rooms and areas cleaned with hot water.
Not sure? Let us survey first
Our installation crew checks the existing floor, its moisture and how the area is actually used, then recommends the system that fits, free of charge.
Read more: PU LF (thin film) · PU HF (heavy duty) · Industrial floors: which system to choose
Technical data
| Item | Value |
|---|---|
| Solids content | 100% |
| Recommended thickness | 3–5 mm |
| Compressive Strength | 51 N/mm² (BS 6319) |
| Flexural Strength | 22 N/mm² (BS 6319) |
| Bond Strength | 31 N/mm² (Concrete Fails) |
| Temperature resistance | -40°C to 120°C |
| Touch dry / set | 12 h / 16 h |
| Full cure | 7 days |
| Pack size | 20 kg/kit (A3 : B3 : C12) |
Suitable applications
- Food, beverage and pharmaceutical plants
- Cold rooms, freezer rooms
- Chemical-exposure areas / laboratories
- Industrial plants that need a hygienic floor
See the material specifications used in this system: PU Concrete flooring
What to know and how to maintain it
PU MF costs more up front than standard floor coatings, but with the right care it lasts a long time and gives much better value.
Floor moisture must be within limits
Excess moisture in the concrete will push the PU layer into blisters and delamination, so always measure it and fix the cause before the system goes down.
The area must be closed off during work
A self-leveling system needs an area where dust and drafts can be controlled, so plan production line shutdowns in advance.
Allow the full cure before use
Opening the floor too early is a common cause of indentations and surface defects.
Can be cleaned with hot water and cleaning agents
Handles food-plant cleaning routines, with both hot water and standard cleaning agents.
Avoid dragging heavy items across the surface
Use rubber-wheeled trolleys instead of dragging, and the smooth surface will last much longer.
Check edges and joints
Edges and the areas around pipes are always the first to get damaged. Inspect them regularly and spot-repair right away.
Frequently asked questions
How is PU MF different from Epoxy Self-Leveling?
How thick is it, and when can it be used?
Is there a strong odor during installation?
Interested in a PU MF (self-leveling PU) floor?
Free on-site survey and quote nationwide — by the professional team at DMH Groups
