surface treatment
| external coating | |
|
|
anticorrosion layer by lacquer or paint |
| 3LPE |
3-layer polyethylene coating acc. to DIN 30670 |
|
type N-n, type S-n standard / type N-v, type S-v reinforced |
|
| 3LPP | 3-layer polypropylene coating acc. to DIN 30678 |
| FBE | 1-layer fusion bond epoxy acc. to DIN 30671 |
| PU | thermal polyurethane foam insulation |
| FZM | fibre cement mortar coating |
| type FZM-N normal / type FZM-S strong | |
|
internal coating |
|
| CEM | internal cement mortar lining acc. to DIN 2614 |
| type II-S for potable water / type II-N for industrial water | |
| internal epoxy lining | |