FeRFA Classification
Ferfa Classification of Synthetic Resin Flooring types
Synthetic resin floorings can be divided into different types varying in thickness and surface finish:
| Type | Name | Description | Duty | Typical thickness |
| 1 | Floor seal | Applied in two or more coats. Generally solvent or water borne. | LD | up to 150 µm |
| 2 | Floor coating | Applied in two or more coats. Generally solvent free. | LD/MD | 150 µm to 300 µm |
| 3 | High build Floor coating | Applied in two or more coats. Generally solvent free. | MD | 300 µm to 1000 µm |
| 4 | Multi-layer flooring | Aggregate dressed systems based on multiple layers of floor coatings or flow-applied floorings, often described as ‘sandwich’ systems. | MD/HD | > 2 mm |
| 5 | Flow applied flooring | Often referred to as ‘self-smoothing’ or ‘self-levelling’ flooring and having a smooth surface. | MD/HD | 2 mm to 3 mm |
| 6 | Resin screed flooring | Trowel-finished, heavily filled systems, generally incorporating a surface seal coat to minimize porosity. | MD/HD | > 4 mm |
| 7 | Heavy duty flowable flooring | Having a smooth surface. | HD/VHD | 4 mm to 6 mm |
| 8 | Heavy duty Resin flooring | Trowel-finished, aggregate filled systems effectively impervious throughout their thickness. | VHD | > 6 mm |
Some of these types of flooring may be produced with special decorative effects by the
incorporation of coloured particles or flakes in the surface. Terrazzo-like finishes (ground
exposed aggregate) may be produced from certain trowel-applied floorings of Types 6 and
8. Slip resistant or anti-static/conductive versions of all these categories may also be
available.
Key:
LD (Light duty) light foot traffic, occasional rubber tyred vehicles
MD (Medium duty) regular foot traffic, frequent fork lift truck traffic, occasional hard plastic-wheeled
trolleys,
HD (Heavy duty) constant fork lift truck traffic, hard plastic wheeled trolleys, some impact
VHD (Very heavy duty) severe heavily loaded traffic and impact
