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Coating Specification 

 

Anti-Corrosion Coating Protection

1.       Coating

1.1 Fusion Bonded Epoxy

Fusion Bond Epoxy is a powder epoxy thermosetting coating applied for anticorrosion protection to steel pipelines. The pipe is first blast cleaned and heated. Then epoxy powder is spray applied by electrostatic guns to melt and form a uniform layer that hardens within a minute from application. Utilizing industry accepted materials supplied by manufacturers such as 3M, DuPont, and Nap-Gard,etc.

It is applied in the form of a dry powder at thicknesses of 400-600 microns onto the heated surface of the steel pipe. Once applied and cured, the epoxy film exhibits an extremely hard surface with excellent adhesion to the steel surface. The FBE protective surface is homogeneous and offers an excellent resistance to chemical reaction.

The FBE coating systems provide protection at moderate temperatures (-40ºC to 85ºC) and come in two options:

·         FBE Dual: recommended for sub-sea pipelines and flowlines operating in the toughest environments. It offers excellent impact resistance and abrasion properties which, combined with its good flexibility, provide suitable protection against coating damage during pipe transportation and construction

·         FBE Non-slip: this coating system provides a rough, non-slip surface for a pipeline that will subsequently be concrete-coated

Fusion Bonded Epoxy with Abrasion Resistance Overcoating (FBE/ARO) – Utilizing two completely separate powder systems, the facility can produce FBE with an ARO at unprecedented processing speeds using industry accepted materials such as 3M 6352, DuPont 7-2610, and Nap Gard.

Abrasion Resistant Overcoating (ARO) is an optional sacrificial second layer in the FBE process that is designed to protect the FBE from impact and/or rock damage while still retaining mild flexibility.  Directional bores and road crossings are common examples of installations that require ARO to keep the anti-corrosion coating intact.  The ARO is applied immediately following the FBE application using a similar method but normally in a separate coating booth.  While the FBE is still in the gel state, the applied ARO powder forms a commingled layer with the FBE and ultimately a strong, durable and resistant outer shell, usually at a final thickness of 20 to 40 mils.

Fusion Bonded Epoxy with High Temperature Resistant Overcoating – Utilizing two completely separate powder systems, the facility can produce FBE with a high operating temperature resistant overcoating such as DuPont’s Nap-Gard Gold and 3M’s 6258.

1.2 Three Layer Polyethylene (3LPE) & Three Layer Polypropylene (3LPP)

The three-layer pipe external anti-corrosion system consists of a layer of high-performance Fusion Bonded Epoxy onto which a co-polymer adhesive layer is extruded, followed by a layer of extruded polyethylene or polypropylene until the desired thickness is obtained.

This coating system provide pipeline protection at the following operating temperatures:

·         Three-layer polyethylene:  suitable for temperatures between -40ºC and 85ºC

·        Three-layer polypropylene:  suitable for temperatures between -40ºC and 110ºC

In addition to the chemical and adhesive properties of the epoxy powder, the polyethylene coating system provides physical and mechanical advantages. The polypropylene coating system ensures performance at high temperatures.

Advantages OF THE Three-Layer Coating System

·         Excellent corrosion resistance. When exposed to either acid or alkaline media, an extended lifetime in highly corrosive soils is assured 

·         Strong steel adhesion: 20 times more adhesive than traditional plastic tape systems 

·         Excellent cathodic disbondment test results 

·         Excellent mechanical resistance 

·         Free of holidays: The hot extrusion method used to perform the coating assures a continuous and a uniform thickness profile, without air   bubbles and holiday-free

·         High dielectric resistance 

·         Superior bending ability for pipe laying applications 

·         High impermeability: Both the high-density polyethylene and polypropylene have low water permeation characteristics that allow improved isolation from the surrounding sea water compared to other coating systems

 

1.3 Internal Coating

The primed FBE coating is a two-layer structure anti-corrosion system for pipe internal surface consisting one liquid phenolic primer layer and fusion bonded epoxy (FBE) coating as topcoat.

·         Liquid epoxy

·         Internal Fusion Bonded Epoxy (FBE)

·         Special anticorrosive painting

Internal coating features:

·         Suitable for fresh and salt water immersion

·         Effective for speeding up production

·         Suitable for corrosive environments

·         Resistant to many solvents and chemicals

·         Resistant to cathodic disbondment

1.4 Thermal Insulation

·         Glass syntactic polyurethane

·         Polypropylene foam syntactic

·         Multi-layer polypropylene

·         PIPE-IN-PIPE INSULATION

Glass syntactic polyurethane pipe insulation

We offer syntactic polyurethane thermal insulation solutions for flow assurance in applications involving offshore shallow water pipelines. This option can be used in operating temperatures of between -35ºC and 115ºC.

Polypropylene foam syntactic insulation

To guarantee offshore flow assurance, we offer a polypropylene foam syntactic insulation coating system recommended for operating temperatures ranging from -35ºC to 155ºC and water depths of a maximum 2,800 meters.

Multi-layer polypropylene pipe insulation 

We provide a multi-layer thermal insulation application process that results in a combination of anti-corrosion and thermal insulating materials applied to steel pipe in multiple layers. The system is similar to a conventional three-layer anti-corrosion system; however, additional layers of solid, foam or syntactic polypropylene are used depending on the water depth.

The multi-layer polypropylene is recommended for operating temperatures of up to 140ºC and water depths greater than 3,000 meters. Meanwhile, the multi-layer polypropylene foam works in operating temperatures ranging from -20ºC to 140ºC and water depths up to 600 meters.

Pipe-in-pipe insulation

Our offer includes coating for pipe-in-pipe systems, which include an outer pipe able to withstand water pressure and prevent water penetration, and an inner pipe which conducts the production fluids. The thermal insulation material is placed between the production flowline and the carrier pipe.

We supply the outer pipe, inner pipe and high-efficiency insulation system to optimize flow assurance in the most complex scenarios.


 

2.1 External Epoxy Coating

CAN/CSA-Z245.20 Standard for External Fusion Bond Epoxy Coating for Steel Pipe

API RP 5L9  External Fusion-Bonded Epoxy Coating of Line Pipe

AS 3862 Standard Specification for External Fusion-Bonded Epoxy Coating for Steel Pipes

AWWA C210 Standard for Liquid-Epoxy Coating Systems for the Interior and Exterior of Steel Water Pipelines

AWWA C213 Standard for Fusion Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines.

BP GIS 06-402 Guidance on Industry Standard for Fusion Bonded Epoxy Powder External Pipeline Coatings

DEP 31.40.30.32 Technical Specification for External Fusion-Bonded Epoxy Powder Coating for Line Pipe

NFA 49-710  Standard Specification for External Fusion-Bonded Epoxy Coating

ISO 15741 Paints and Varnishes - Friction-Reduction Coatings for the Interior of On-and Offshore Steel Pipelines for Non-Corrosive Gas.

ISO 21809-2 Petroleum and natural gas industries-External coatings for buried or submerged pipelines used in pipeline transportation systems-Part 2: Fusion-bonded epoxy coatings

NACE RP0394 National Association of Corrosion Engineers Standard Recommended Practice, Application, Performance, and Quality Control of Plant Applied, Fusion Bonded Epoxy External Pipe Coating.

NACPA 12-78 National Association of Pipe Coating Applicators External Application Procedure for Plant Applied fusion Bonded Epoxy (FBE) to Steel Pipe.

SAES-H-002 Internal and External Coatings for Steel Pipelines and Piping

09-SAMSS-089 Shop-Applied External FBE Coating

09-SAMSS-091 Shop-Applied Internal FBE Coatings

TransCanada TES-CO-FBE-GL: External Fusion Bond Epoxy for Steel Pipe Specification (CAN-US-MEX) Table 12-1 & Table 12-2 (Fusion-Bonded Epoxy Powder & Coating Qualifications).

 

2.1.2 Polyethylene Coating

CAN/CSA Z245.21 External Polyethylene Coating for Pipe

DIN 30670       Polyethylene Sheathing of Steel Tubes and of Steel Shaped Fittings

NFA 49-710      External Three-Layer Polyethylene Based Coating, Application by Extrusion

DNV-RP-F106    Factory Applied External Pipeline Coatings For Corrosion Control

AS/NZS 1518     External Extruded High-Density Polyethylene Coating System for Pipes

AS 4321         Fusion Bonded Medium-Density Polyethylene coating and lining for pipes and fittings

EN 10288        Steel tubes and fittings for on and offshore pipelines - External two layer extruded polyethylene based coatings

ISO/DIS 21809-1  Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 1: Polyolefin coatings (3- layer PE and 3- layer PP)

ISO 21809-4     Petroleum and natural gas industries -External coatings for buried or submerged pipelines used in pipeline transportation systems-Part 4: Polyethylene Coatings (2-layer PE)

BP GIS 06-403   Guidance on Industry Standard for the Application of Three-Layer Fusion Bonded Epoxy-Polyethylene Coating and Three-Layer Polypropylene Coating System for Line Pipe

DEP 31.40.30.31-Gen. TECHNICAL SPECIFICATION FOR EXTERNAL POLYETHYLENE AND POLYPROPYLENE COATING FOR LINE PIPE

IPS-G-TP-335   Material and Construction Standard for Three Layer Polyethylene Coating System

NFA 49-710    External 3 layer Polyethylene Coating

PETROBRAS ET-200.03 Engineering Specification ("Piping Materials for Production and Process Facilities") for using low density linear polyethylene in carbon steel piping, as to appendix 13 of such specification.

09-SAMSS-113  External Renovation Coating for Buried Pipelines and Piping (APCS-113)

UNI 9099       Polyethylene Coating Applied by Extrusion

 

2.1.3 Polypropylene Coating

DIN30678     Polypropylene Sheathing of Steel Tubes and of Steel Shaped Fittings

EN 10286     Steel tubes and fittings for onshore and offshore pipelines –External three layer extruded polypropylene based coatings.

NFA 49-711   External Three-Layer Polypropylene Based Coating, Application by Extrusion

09-SAMSS-114 Shop-Applied Extruded, Three-Layer Polypropylene External Coatings for Line Pipe

 

2.1.4 Polyurethane Coating

AWWA C222 Polyurethane Coatings for the Interior and Exterior of Steel Water Pipe and Fittings

BS 5493     Polyurethane Coating

DIN 30677.2  Polyurethane Insulation of the fittings

EN 10290 PUR B3 steel pipes and fittings used in constructing sea and coastal pipelines. External coatings of liquid polyurethane and modified polyurethane - external coatings.

 

2.1.5 Polyolefin Coating

AWWA C225 Fused Polyolefin Coating Systems for the Exterior of Steel Water Pipelines

AWWA C215 Extruded Polyolefin Coatings for the Exterior of Steel Water Pipelines

AWWA C216 Standard for Heat-Shrinkable Cross-Linked Polyolefin Coatings for the Exterior of Special Sections, Connections, and Fitting for the Steel   Water Pipelines

AWWA C224 Two-layer Nylon-11 Based Polyamide Coating System for Interior and Exterior of Steel Water Pipe and Fittings

AWWA C225 Fused Polyolefin Coating Systems for the Exterior of Steel Water Pipelines

2.1.6 Tape Coating

ISO 21809-3  Petroleum and natural gas industries-External coatings for buried or submerged pipelines used in pipeline transportation systems-Part 3: Field joint coatings

AWWA C209 Standard for Cold-Applied Tape Coatings for the Exterior of Special Sections, Connections, and Fittings for Steel Water Pipelines

AWWA C214 Standard for Tape Coating Systems for the Exterior of the Steel Water Pipelines

AWWA C217 Standard for Cold-Applied Petrolatum Tape and Petroleum Wax Tape Coatings for the Exterior for Special Sections, Connections, and Fittings for Buried/Submerged Steel Water Pipelines

AWWA C218 Standard for Coating the Exterior of Aboveground Steel Water Pipelines and Fittings

AWWA C224 Two-layer Nylon-11 Based Polyamide Coating System for Interior and Exterior of Steel Water Pipe and Fittings

EN 12068 - DIN 30672 STANDARD-POLYETHYLENE SELF ADHESIVE TAPES

2.1.7 Bitumen Coating

DIN 30673  Bitumen coatings and linings for steel pipes, fittings and vessels

 

2.1.8 Coal-Tar Enamel Coating

AWWA C-203 Coal-Tar Protective Coatings and Linings for Steel Water Pipelines-Enamel and Tape-Hot-Applied

AWWA C205 Cement Mortar Protective Lining and Coating for Steel Water Pipe - 4 inch (100 mm) and Larger- Shop Applied

 

2.1.9 Concrete Weighted Coating

DNV-OS-F101 Submarine Pipeline System

DEP-31.40.30.30 Concrete coating of line pipe

ASTM C171 Specification for Sheet Material for Coating Concrete

BS EN 12620 Aggregates for Concrete

ISO 21809-5 Petroleum and natural gas industries -External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 5:External concrete coating.

ASTM C42 Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete

ASTM C642 Standard Test Method for Specific Gravity, Absorption and Voids in Hardened Concrete

ASTM C87 Standard Test Method for Effect of Impurities in Fine Aggregate on Strength of Mortar BS 1881 Methods of Testing Concrete

BS 3148 Methods of Test for Water for Making Concrete

BS 4482 Hard Drawn Mild Steel Wire for the Reinforcement of Concrete

BS 4483 Specification for Steel Fabric for the Reinforcement of Concrete

BS 4449 Specification for Carbon Steel Bars for Reinforcement of Concrete

ISO 4012 Determination of Compressive Strength of Test Specimen

 

2.1.10 Structure Coating

ISO 12944 Paints & Varnishes – Corrosion Protection of Steel Structures by protective paint system (parts 1 – 8)

ISO 20340 Paints and varnishes – Performance requirements for protective paint systems for offshore and related structures

ISO 15741 Paints and varnishes-Friction-reduction coatings for the interior of on- and offshore pipelines for non-corrosive gases

 

2.2. Internal Coating

2.2.1 Epoxy Coating

API RP 5L2 Recommended Practice for Internal Coating of Line Pipe for Non-Corrosive Gas Transmission Service.

DEP 31.40.30.35 Internal coating of line pipe for non-corrosive gas transmission service (amendments/ supplements to API RP 5L2)

AWWA C210 Liquid-Epoxy Coating Systems for the Interior and Exterior of Steel Water Pipelines

NFA 49-709 Internal can be epoxy 80 microns

NFA 49-708 Recommended Practice for Internal Coating of Line Pipe

TransCanada TES-COAT-INT: Internal Coating of Line Pipe for Non-Corrosive Gas Transmission Service (Cdn-US).

TransCanada TES-COAT-EPU: External Multi-Component Liquid Coating Systems for Below Ground Facilities (Cdn-US-Mex).

TransCanada TES-EPU-TEST: External Multi-Component Liquid Coating Systems Test Requirements (Cdn-US-Mex).

 

2.2.2 Bitumen Lining

DIN 30673 Bitumen coatings and linings for steel pipes, fittings and vessels

UNI-ISO 5256/87 Bitumen coatings

 

2.2.3 Cement Mortar Lining

AS 1281 Cement mortar lining of steel pipes and fittings

AS/NZS 1516 Cement Mortar Lining of Pipelines In Situ

AWWA C203 Coal-Tar Protective Coatings & Linings for Steel Water Pipelines, Enamel & Tape, Hot-pap. (Incl. add. C203a-99)

AWWA C205 Cement-Mortar Protective Lining and Coating for Steel Water Pipe- 4 In. (100 mm) and Larger-Shop application

AWWA C602 Cement-Mortar Lining of Water Pipelines - 4 inch (100 mm) and Larger - In Place

 

2. Brands of Coating Materials

3M™: SK 134, SK6233, SK6352 Toughkote, SK 314, SK 323, Scotchkote ™ 206N, SK 226N, SK 6251 DualKote SK-6171, SK 206P, SK226P,

3M Internal Coatings: Coupon EP2306HP

DuPont: 7-2500, 7-2501, 7-2502, 7-2508, 7-2514, 7-2803, 7-2504 Nap Gard Gold 7-2504, Nap Rock: 7-2610, 7-2617 FBE Powders

DuPont Internal Coatings: 7-0008, 7-0010, 7-0014, 7-0009SGR, 7-0009LGR, 7-2530, 7-2534, 7-2509

DuPont Repair Kits; 7-1631, 7-1677, 7-1862, 7-1851

Akzo Nobel: Interzone 485,Interzone 505,Interzone 954,Internline 876 Seal Coat

Hampel: 85448,97840

Denso: 7200, 7900 High Service Temperature Coatings

Internal Liquid Epoxy: Powercrete Superflow


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