FIELD: construction.
SUBSTANCE: multilayered insulation coating comprises a primer layer, an inner mastic layer based on bitumen-polymer mastic, and a protective wrapper with an outer surface based on extruded polymer tape, arranged in series with respect to the outer pipeline surface. While implementing the method, electrically conductive polymeric tape with a filler based on carbon black in an amount of 20 to 40 wt % and with a specific volume electrical resistance of the tape up to 1⋅105 Ohm⋅m is used.
EFFECT: multilayer insulating coating for pipelines has a high efficiency of corrosion protection regardless of its destruction, accompanied by peeling, blistering and cracks in the insulation coating system.
3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ANTI-CORROSION PROTECTION OF CATHODIC-POLARIZABLE UNDERGROUND METAL STRUCTURES WITH BITUMEN-POLYMERIC LAYER OF MASTIC IN INSULATED COATING AND BITUMEN-POLYMER MASK FOR INSULATING COATING OF CATHODIC-POLARIZABLE UNDERGROUND METAL STRUCTURES | 2017 |
|
RU2666917C1 |
| MULTILAYER INSULATION TAPE COATING FOR PIPELINES | 2022 |
|
RU2789043C1 |
| PIPELINE MULTILAYER INSULATION COATING | 2012 |
|
RU2498148C1 |
| COILED MASTIC MATERIAL | 2008 |
|
RU2379575C2 |
| MULTI-LAYERED POLYMERIC CORROSION-RESISTING COATING | 2005 |
|
RU2292513C1 |
| METHOD OF PIPELINE CORROSION PROTECTION | 2007 |
|
RU2340830C1 |
| POLYMER-CONTAINING ADHESIVE PRIMER | 2012 |
|
RU2492386C1 |
| MULTI-LAYER INSULATING COAT | 2007 |
|
RU2368840C2 |
| MULTI-LAYER INSULATION COATING | 2020 |
|
RU2753114C1 |
| MULTI-LAYER INSULATING COAT | 2007 |
|
RU2368841C2 |
