Standard colours
Polyester (PES)
- PES – good corrosion resistance, very good adhesion
- PES HD (High Durability) – UV resistance, higher corrosion resistance as well as higher weather condition resistance than PES, greater flexibility
- PES TEXT – texture/structural surface, higher resistance than PES HD
PUR, PUR/PA (polyurethane, polyurethane/polyamide)
- PUR/PA – excellent mechanical damage resistance due to structural surface (polyamide particles), high corrosion and UV-resistance
PVDF (polyvinyl difluoride)
- High UV-resistance, high chemical resistance
- Application for construction elements in environments with higher UV-load or in the industrial environment (chemical resistance)
Non-standard colours
Gravure printing
- PES HD-based sealer imitating for example the appearance of wood
- Possibility of outdoor application, total coat 25 µm
Multiply systems
Three-coat:
- polyester sealers using “clear coat” with total coat thickness of 40–50 µm
- PVdF with “barrier coat” (RAL 5002), PVdF with clear coat (RAL 7002)
Four-coat:
- PVdF with “barrier coat” (RAL 3000, RAL 5026)
Coating material parameters
| Types of paints | Thickness (µm) | Coating system | Double-side coating | Protective function (yrs) | Corosion resistance |
|---|---|---|---|---|---|
| Polyester HD | 20 – 25 | single/double-layer | yes | 10 | RUV 3 |
| Polyester 50 | 40 – 50 | double/three-layer | yes | 12 | RUV 4 |
| Polyester TXT | 25 – 35 | double-layer | yes | 10 | RUV 3 |
| PVdF | 25 – 35 | double/three-layer | yes | 15 | RUV 4 |
| PUR | 25 – 45 | double/three-layer | yes | 15 | RUV 4 |
| PUR/PA | 25 – 55 | double/three-layer | no | 20 | RUV 4 |
| Back coat | 3 – 15 | white-grey colour (FeZn, suitable for PUR foam), green-gold colour (Al), pigment colour | yes | 1 | RUV 2 |
Protective properties of paints
- Examples of non-standard coating:
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