| EN877 CAST IRON PIPE COATING STANDARD | ||||
| pipe code | SML | TML | KML | BML |
| name | common drainage pipe | buried drainage pipe | special corrosion drainage pipe | drainage pipe for bridge use |
| inner coating color | yellow | yellow | yellow | yellow |
| inner coating material | epoxy resin paints | epoxy resin paints | epoxy resin paints | epoxy resin paints |
| inner coating thickness(μm ) | 120 | 120 | 240 | 120 |
| outer zinc coating thickness (μm ) | 18-20 | 18-20 | 36-40 | |
| outer coating color card | RAL3009 | RAL8011 | RAL7024 | silver gray |
| outer coating material | epoxy ester enamel paints | epoxy resin paints | epoxy resin paints | epoxy resin paints |
| outer coating thickness(μm ) | 60 | 60 | 60 | 80 |