SAES-H-002V
13 December 2011
Approved Saudi Aramco Data Sheets
for the Pipeline and Piping Coatings
Document Responsibility: Paints and Coatings Standards Committee
Saudi Aramco DeskTop Standards
Table of Contents
1
Canusa - Approved Materials... 2
2
Kansai - Approved Materials... 7
3
Hempel's - Approved Materials... 10
4
International Paint - Approved Materials... 17
5
Oasis Ameron Ltd. - Approved Materials..… 20
1
Canusa - Approved Materials
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113C
Type of Coating : Visco-Elastic Coating System
Manufacturer : Canusa-CPS
Product Name : Wrapid Bond™ System
SAMS S/N [SAP] : 09-000-444 [1000600012] (Wrapid BondTM FST);
09-000-436/438/442 [1000600006/07/11] (Wrapid BondTM );
09-000-439/440 [1000600006/07/08/09/11] (Wrapid CoatTM ); 09-000-441 [1000600010] (Wrapid CoatTM XL/UV).
Application Procedure
1. Scope
1.1 Wrapid Bond™ system is a wraparound corrosion protective Visco-Elastic (VE) coating system for new construction or rehabilitation of existing pipeline coatings. The system may be used for below grade and subsea steel pipelines operating at temperatures up to 75°C. The Wrapid Bond™ system consists of 2 major components:
a) The 1st layer (inner), Wrapid Bond™, is a modified and reinforced Visco-Elastic adhesive
applied onto a polyethylene carrier film that facilitates wrapping directly to substrate thus creating an impermeable barrier to water and air.
b) The 2nd layer (outer), Wrapid Coat™ or Wrapid Coat™XL range, is a tough PVC or FRP tape
designed as an outer wrap for the VE inner wrap for mechanical protection.
1.2 This document shall be a general guideline for the installation of Wrapid Bond™ system over pipelines with various applications and conditions. For variant specific applications, Canusa-CPS should be consulted for best practice.
2. Condition of Steel Pipe Prior to Surface Preparation
2.1 Pipe should have acceptable integrity, be properly patched and leak free. Any slag and loose particles on the weld areas shall be removed mechanically.
2.2 Any moisture or liquid contaminations on the surface of the pipe is not allowed and shall be properly removed if present.
3.4 Make sure the substrate temperature is at least 5°F above the dew point temperature.
4. Application of Wrapid Bond™ on Girth Weld
4.1 Wrapid Bond™ of 200 mm width shall be pre-cut to the desired length equal to the circumference of the pipe plus 100 to 150 mm for overlapping. Transport to site and storage shall be in a cooled or shaded truck/tente during high temperature season.
4.2 Depending on the cut back width, a number of adjacent Wrapid Bond™ wraps can be applied - either 2, 3 or more wraps of Wrapid Bond™ 200 mm wide or in combination with 100 mm wide product. 4.3 Overlapping of adjacent circumferential wraps shall be minimim 50 mm if 2 wraps, or 25 mm if 3
wraps or more when using Wrapid Bond™ FST weld bead tape of 50 mm width on the weld; overlapping of Wrapid Bond™ wraps on FBE or PP, PE mainline coating shall be kept min 100 mm in all cases.
4.4 The 1st wrap shall start at the 2 o’clock position and wrapped clockwise while removing the release liner. The adjacent wrap shall start at the 10 o’clock position and wrapped counter clockwise and so forth. Self overlap (wrap ends) shall be minimum 100 mm.
4.5 Alternatively, Wrapid Bond™ can be supplied of the same joint width to be applied in combination with the weld bead tape as a single wrap using Canusa wrapping machine.
4.6 Ensure the wrapping is well pressed onto the pipe surfaces, especially at the coating transition areas and over the weld bead location.
5. Application of Wrapid BondTM as a Rehabilation Coating
5.1 Spiral, longitudinal, and circumferential welds shall be wrapped by Wrapid BondTM FST weld bead tape 50 mm wide.
5.2 Start wrapping circumferentially around the pipe at a 90° angle, overlapping the adjacent sound coating by a minimum of 100 mm for the 1st total circumference which shall overlap itself vertically by minimum 200 mm.
5.3 Incline the tape and start wrapping spirally while removing the release liner and ensure that a minimum edge overlap of 10% the tape width (or as otherwise specified) is maintained. Press or roll on lightly over the entire coated area. Continue application with light to moderate tension.
5.4 Special attention shall be made to the bottom part of the pipe to make sure the material adheres well with no air pockets at 6 o’clock position.
5.5 Finish with a circumferential wrap applied at 90° to the pipe length, overlapping the coating to be tied into by a minimum of 100mm.
6. Wrapid Bond™ FST (VE paste) on fittings and irregularities
6.1 Apply the VE filler bars or tube on irregularities and fittings such as bolts, cavities, flanges, etc., by moulding the VE paste by hands to the right place creating a completely sealed body.
6.2 VE filler shall take the compacted shape with inclination so that Wrapid Bond™ 50 or 100 mm (depending on the fitting size) can be wrapped around spirally on the whole fitting detail with 10 mm overlap.
6.3 If pipe surface has irregularities like voids or sharp corners, VE fillers shall be used to fill them before applying the inner wrap.
7. Application of Wrapid Coat™ (outer wrap)
7.1 Apply the first circumference wrap on overlapping the mainline coating by minimum of 50mm around the pipe at a 90° angle with double wrap at start and end, self overlap with minimum 200mm then incline the direction of wrapping from vertical to overcoat the Wrapid Bond™.
7.2 Continue application spirally with a 50% overlap at moderate tension.
7.3 Roll end shall cover the new roll lead by minimum of 200 mm and shall be further inclined toward the wrapping direction for better closure.
7.4 Overlap of Wrapid Coat™ on the sound mainline coating shall be at least 50 mm and it shall end by a full circumferential wrap as well.
7.5 When the pipe is subject to mechanical abuse or impacts, such as in thrust boring, directional drilling applications, and high turbulence soil/subkha, Wrapid Coat™ XL range shall be used as a protection to the VE adhesive and a mechanical barrier. Check with the local representive for any specific application.
8. Repair
8.1 Wrapid Bond™ system can be repaired by its own components.
8.2 Any damage to the coating shall be cut in window shape only as small as the damage in diameter size; loose materials shall be removed.
8.3 If surface of the steel developed corrosion products prior to repair, they shall be cleaned and prepared as per Section 3 above or by wire brush.
8.4 Patches of Wrapid Bond™ (inner) shall be sized to open window scale with 50 mm addition (overlap) on all sides and shall be pressed in to ensure good adhesion to the substrate.
b) make sure not to touch the mainline coating with the electrode.
c) Move the probing electrode over the pipe surface in one direction at a rate approximately 0.3 m/second. Mark defective areas.
d) Marked areas should be repaired as per Section 9 above.
9.2 Dew Point
a) Control of dew point is important to prevent moisture condensation on the steel pipe substrate during the application of this coating system.
b) The substrate temperature shall be 5°F higher than the dew point.
9.3 Relative Humidity
Relative humidity shall not exceed 85% to ensure that no condensate is forming on the substrate during application.
9.4 Chloride Contamination
The performance of Wrapid Bond™ coating is not affected with the presence of chloride salts higher than the permissible (40 mg/cm²). Water wash for decontamination is not required.
10. Materials Handling
11.1 Deliver materials to site in manufacturer's original, unopened containers and packaging, with labels clearly identifying product name, manufacturer, batch or lot number, and date of manufacture.
11.2 Protect individual components to prevent adherence to other components, packing material, and containers.
11.3 Store materials in accordance with manufacturer's instructions.
11.4 Keep containers sealed in original packaging and avoid exposure to direct sunlight, rain, snow, dirt, and dust until ready for use.
11.5 Do not store at temperatures above 35°C (95°F) for a prolonged period of time.
11.6 Protect materials during handling and installation to prevent damage or contamination.
11.7 Disposal: Dispose of waste material in accordance with local requirements.
2
Kansai - Approved Materials
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113B
Type of Coating : High Solids Epoxy (Putty)
Manufacturer : Kansai Paint Co. Ltd.
Product Name : Kansai Barrier SA
SAP M/N (SAMS S/N) : 09-697-835
1. Storage
1.1 Shelf life, sheltered storage at 35°C maximum : 2 years
2. Mixing
2.1 No. of Components : 2
2.2 Mixing Ratio : 2.35 to 1.00 by volume
2.3 Thinner : Do not thin
SAMS S/N :
2.4 Thinning Requirements : N/A
2.5 Induction Time : Nil
2.6 Pot Life : 2 hours at 25°C
0.7 hour at 40°C 0.4 hour at 50°C
3. Application
3.1 Maximum Allowable Substrate Temperature : 100°C
3.2 Typical Wet Film Thickness Per Coat : 1000-7000 micrometers
3.3 Typical Dry Film Thickness Per Coat : 1000-7000 micrometers
3.4 Theoretical Coverage at 25 Micrometers : 1.44 kg/m²/1000 micrometers
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113B - Kansai Barrier SA (Cont'd)
3.6 Drying Time
Substrate Recoat Interval To Immersion
Temperature To Handle Minimum Maximum Water Buried
10°C 5 Hours 24 Hours 7 Days Immediately 24 Hours
30°C 5 Hours 24 Hours 7 Days Immediately 24 Hours
50°C 1 Hour 6 Hours 5 Days Immediately 5 Hours
3.7 Recommended Equipment
Airless Spray: Hi-Vis Coater/Graco Monarch
Roller or Brush: Application: sponge type made of synthetic fiber resistant to solvent.
Smoothing: short synthetic fibers resistant to solvent. Wet sponge with solvent, this is intended to ensure a smooth surface and eliminate holidays. If temperature is greater than 70°C, use brush slightly wet with solvent.
4. Technical Properties
4.1 Volume Solids (ASTM D2697) : 100%
4.2 Product Weight (ASTM D1475) :
4.3 Viscosity (ASTM D562) : N/A
4.4 Flash Point (ASTM D93 or D56) : N/A
Approval Date: September 3, 1997 Replaces: April 25, 1987
3
Hempel's - Approved Materials
APCS-113A Hempadur XP 87550 Very High Volume Solids Epoxy
---- do ---- Hempadur 87540 100% Volume Solids Epoxy
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A
Type of Coating : Very High Volume Solids, Amine Adduct-Cured Epoxy
Manufacturer : Hempel's Marine Paints Saudi Arabia Ltd.
Product Name : Hempadur XP 87550
SAP M/N (SAMS S/N) : 1000686070 (09-000-497)
1. Storage
1.1 Shelf life, sheltered storage at 35°C maximum : 2 years
2. Mixing
2.1 No. of Components : 2
2.2 Mixing Ratio : 2 to 1 by volume
2.3 Thinner : Hempel Thinner 08450
2.4 Thinning Requirements : Up to 2%
2.5 Induction Time : Nil
2.6 Pot Life : 1.5 hours at 20 °C
3. Application
3.1 Maximum Allowable Substrate Temperature : 90°C
3.2 Typical Wet Film Thickness Per Coat : 675 microns
3.3 Typical Dry Film Thickness Per Coat : 600 microns
3.4 Theoretical Coverage at 25 Micrometers : 36 M²/L
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A - Hempadur XP 87550 (Cont'd)
3.6 Drying Time
Substrate Recoat Interval To Immersion
Temperature To Handle Minimum Maximum Water Buried
10°C 14 Hours 32 Hours 10 Days 3-1/2 Days 42 Hours
30°C 3-1/2 Hours 8 Hours 2-1/2 Days 14 Hours 10 Hours
50°C 45 Minutes 2 Hours 15 Hours 5 Hours 3 Hours
3.7 Recommended Equipment
Airless Spray : Tip Size 0.023 to 0.025 inch
Fluid Pressure 3,600 psi
Conventional Spray : N/A
Brush : (For Touch-up)
4. Technical Properties
4.1 Volume Solids (ASTM D2697) : 88 to 92%
4.2 Product Weight (ASTM D1475) : 1.62 to 1.68 Kg/L
4.3 Viscosity (ASTM D562) : 125 to 135 KU
4.4 Flash Point (ASTM D93 or D56) : 14°C
Approval Date: October 11, 2006 Replaces: New
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A
Type of Coating : 100% Solids Epoxy
Manufacturer : Hempel's Marine Paints Saudi Arabia Ltd.
Product Name : Hempadur 87540
SAP M/N (SAMS S/N) : 1000686070 (09-000-497)
1. Storage
1.1 Shelf life, sheltered storage at 35°C maximum : 2 years
2. Mixing
2.1 No. of Components : 2
2.2 Mixing Ratio : 2 to 1 by volume
2.3 Thinner : N/A
2.4 Thinning Requirements : N/A
2.5 Induction Time : N/A
2.6 Pot Life : N/A. For dual feed spray equipment.
3. Application
3.1 Maximum Allowable Substrate Temperature : 90°C
3.2 Typical Wet Film Thickness Per Coat : 500 to 625 microns
3.3 Typical Dry Film Thickness Per Coat : 500 to 625 microns
3.4 Theoretical Coverage at 25 Micrometers : 40 M²/L
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A - Hempadur 87540 (Cont'd)
3.6 Drying Time
Substrate Recoat Interval To Immersion
Temperature To Handle Minimum Maximum Water Buried
10°C 4 Hours 8 Hours 3 Days 6 Days 3 Days
30°C 1 Hour 3 Hours 2 Days 2 Days 1 Day
50°C 20 Minutes 2 Hours 2 Days 8 Hours 4 Hours
60°C 10 Minutes 1 Hour 2 Days 4 Hour 2 Hours
3.7 Recommended Equipment
Dual- Feed Airless Spray : Tip Size 0.025 inch Fluid Pressure 2,500 psi
4. Technical Properties
4.1 Volume Solids (ASTM D2697) : 100%
4.2 Product Weight (ASTM D1475) : 1.8 Kg/L
4.3 Viscosity (ASTM D562) :
4.4 Flash Point (ASTM D93 or D56) : 121°C
Approval Date: September 30, 1997 Replaces: New
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113D
Type of Coating : High Volume Solids Epoxy
Manufacturer : Hempel's Marine Paints Saudi Arabia Ltd.
Product Name : Nap-Gard 7-0055 or Hempadur 8553
SAP M/N (SAMS S/N) : 1000197749 (09-697-831), 20-L kit 1000197771 (09-697-833), 0.5-L kit 1000197777 (09-697-837, 5-L kit) 1000197800 (09-697-839, 10-L kit)
1. Storage
1.1 Shelf life, sheltered storage at 35°C maximum : 2 years
2. Mixing
2.1 No. of Components : 2
2.2 Mixing Ratio : 4 to 1 by volume
2.3 Thinner : Hempel's 0845
2.4 Thinning Requirements : 5% maximum
2.5 Induction Time : Nil
2.6 Pot Life : 3 hours at 25°C
1 hour at 40°C
3. Application
3.1 Maximum Allowable Substrate Temperature : 90°C
3.2 Typical Wet Film Thickness Per Coat : 625 microns
3.3 Typical Dry Film Thickness Per Coat : 500 microns
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113D - Nap-Gard 7-0055 or Hempadur 8553 (Cont'd)
3.6 Drying Time
Substrate Recoat Interval To Immersion
Temperature To Handle Minimum Maximum Water Buried
10°C 24 Hours 24 Hours 21 Days 3 Days 1.5 Days
30°C 12 Hours 12 Hours 7 Days 18 Hours 14 Hours
50°C 3 Hours 3 Hours 5 Days 6 Hours 4 Hours
3.7 Recommended Equipment
Airless Spray : Tip Size: 0.021 to 0.023 inch Fluid Pressure: 2,900 psi
Conventional Spray : Tip Needle: 0.070; Air Cap; High Volume.
Roller : Use synthetic ½ inch NAP or greater.
Brush : May be applied by brush; however,
additional coats will be required to obtain dry film thickness.
4. Technical Properties
4.1 Volume Solids (ASTM D2697) : 78 to 82%
4.2 Product Weight (ASTM D1475) : 1.67 to 1.73 Kg/L
4.3 Viscosity (ASTM D562) : 80 to 90 KU
4.4 Flash Point (ASTM D93 or D56) : 29°C
Note: When marketed from the United States, the product is designated Nap-Gard 7-0055. When locally manufactured, the product is called Hempadur 8553.
4
International Paint - Approved Materials
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A
Type of Coating : Ultra High Volume Solids Epoxy
Manufacturer : International Paint Saudi Arabia Ltd.
Product Name : Interzone 485
SAP M/N (SAMS S/N) : 1000686070 (09-000-497)
1. Storage
1.1 Shelf life, sheltered storage at 35°C maximum : 12 months
2. Mixing
2.1 No. of Components : 2
2.2 Mixing Ratio : 4 PARTS EAA485:
1 PART EAA486
2.3 Thinner : GTA203
SAP M/N (SAMS S/N) : 09-000-498
2.4 Thinning Requirements : Up to 3%
2.5 Induction Time : N/A
2.6 Pot Life : 45 minutes at 25°C
30 minutes at 40°C
3. Application
3.1 Maximum Allowable Substrate Temperature : 100°C
3.2 Typical Wet Film Thickness Per Coat : 600 - 1000 micrometers
3.3 Typical Dry Film Thickness Per Coat : 600 - 1000 micrometers
3.4 Theoretical Coverage at 25 Micrometers : 39.6 M²/L Dry Film Thickness
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A – Interzone 485 (Cont'd)
3.6 Drying Time
Substrate Recoat Interval Burial
Temperature To Handle Minimum Maximum* Water Dry Soil
10°C 72 Hours 72 Hours 21 Days 2 days 2 days
25°C 24 Hours 24 Hours 10 Days 1 day 1 day
40°C 12 Hours 12 Hours 7 Days 1 day 1 day
* Before overcoating after exposure in a contaminated environment, clean thoroughly by high pressure fresh water hosing and allow to dry.
3.7 Recommended Equipment
Airless spray : 0.030 in. tip; Remove all filters 45:1 ratio pump preferred 4,000 psi
Conventional spray : Not recommended
Brush and Roller : Not recommended
4. Technical Properties
4.1 Volume Solids (ASTM D2697) : 99%
4.2 Product Weight (ASTM D1475) : 1.10 Kg/L
4.3 Viscosity (ASTM D562) : 40-50 poise (BRT)
4.4 Flash Point (ASTM D93 or D56) : 63°C (base)
5
Oasis Ameron Ltd. - Approved Materials
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113D
Type of Coating : High Volume Solids Epoxy
Manufacturer : Oasis Ameron Ltd.
Product Name : Amercoat 4151
SAP M/N (SAMS S/N) : 1000197749 (09-697-831), 20-L kit 1000197771 (09-697-833), 0.5-L kit 1000197777 (09-697-837, 5-L kit) 1000197800 (09-697-839, 10-L kit)
1. Storage
1.1 Shelf life, sheltered storage at 35°C maximum : 2 years
2. Mixing
2.1 No. of Components : 2
2.2 Mixing Ratio : 4:1 by volume
2.3 Thinner : Amercoat T-10
SAP M/N (SAMS S/N) : 09-000-498
2.4 Thinning Requirements : Up to 10%
2.5 Induction Time : 15 minutes at 20 °C
2.6 Pot Life : 4 hours at at 20 °C
3. Application
3.1 Maximum Allowable Substrate Temperature : 100°C
3.2 Typical Wet Film Thickness Per Coat : micrometers
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113D – Amercoat 4151 (Cont'd)
3.6 Drying Time
Substrate Recoat Interval Burial
Temperature To Handle Minimum Maximum* Water Dry Soil
10°C 24 Hours 24 Hours 6 Days 14 days 24 days
30°C 7 Hours 7 Hours 4 Days 6 day 4 day
50°C 5 Hours 5 Hours 3 Days 2 day 3 day
* Before overcoating after exposure in a contaminated environment, clean thoroughly by high pressure fresh water hosing and allow to dry.
3.7 Recommended Equipment
Airless spray : 0.021 in. tip
28:1 ratio pump preferred 2,800 psi
Conventional spray : Not recommended
Brush and Roller : Recommended on small areas only.
4. Technical Properties
4.1 Volume Solids (ASTM D2697) : 70%
4.2 Product Weight (ASTM D1475) : 1.39 Kg/L (Mixture)
4.3 Viscosity (ASTM D562) :
4.4 Flash Point (ASTM D93 or D56) : 28 °C
Approval Date: October 15, 2008 Replaces: New
6
Sigma's - Approved Materials
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A
Type of Coating : 100% Solids Phenolic Epoxy
Manufacturer : Sigma Paints Saudi Arabia Ltd.
Product Name : Sigmaline 2000 (Formerly named Sigmarite EPH 7497)
SAP M/N (SAMS S/N) : 1000686070 (09-000-497)
1. Storage
1.1 Shelf life, sheltered storage at 35°C maximum : 1 year
2. Mixing
2.1 No. of Components : 2
2.2 Mixing Ratio : 78:22 by volume;
base: hardener
2.3 Thinner : None
2.4 Thinning Requirements : N/A
2.5 Induction Time : Nil
2.6 Pot Life : 50 minutes at 25°C
20 minutes at 40°C
3. Application
3.1 Maximum Allowable Substrate Temperature : 70°C
3.2 Typical Wet Film Thickness Per Coat : 600 microns
3.3 Typical Dry Film Thickness Per Coat : 550 microns
3.4 Theoretical Coverage at 25 Micrometers : 40 M²/L
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A - Sigmaline 2000 (Cont'd)
3.6 Drying Time
Substrate Recoat Interval To Immersion
Temperature To Handle Minimum Maximum Water Buried
10°C 30 Hours 1-½ Days 90 Days 1 Day 1 Day
30°C 10 Hours 16 Hours 30 Days 12 Hours 7 Hours
50°C 4 Hours 4 Hours 10 Days 6 Hours 4 Hours
3.7 Recommended Equipment
Airless Spray : Tip Size: 0.021 inch
Fluid Pressure: 3,000 psi
Conventional Spray : N/A
Brush : Suitable for touch-up, repairs,
and stripe coating
4. Technical Properties
4.1 Volume Solids (ASTM D2697) : 100%
4.2 Product Weight (ASTM D1475) : 1.28 to 1.32 Kg/L
4.3 Viscosity (ASTM D562) : 35 to 40 poise **
4.4 Flash Point (ASTM D93 or D56) : 65°C
** - Conversion to KU not available.
Approval Date: October 23, 1998 Replaces: New
7
SIPCO - Approved Materials
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A
Type of Coating : Solvent free Amine Cured Epoxy Coating
Manufacturer : Saudi Industrial Paint Co. (SIPCO)
Product Name : Sipoxy Shield 656
SAP M/N (SAMS S/N) : 09-000-497 (09-000-497)
1. Storage
1.1 Shelf life, sheltered storage @ 35°C maximum : 1 year
2. Mixing
2.1 No. of Components : 2
2.2 Mixing Ratio : 2.5 Base: 1 hard. by volume
2.3 Thinner : N/A*
* for cleaning equipment use Thinner 741/Thinner 780
SAMS S/N :
2.4 Thinning Requirements : N/A
2.5 Induction Time : N/A
2.6 Pot Life (mixture) : 65 min @ 25°C
40 min @ 40°C 5 min @ 60°C
3. Application
3.1 Maximum Allowable Substrate Temperature : 90°C
3.2 Typical Wet Film Thickness Per Coat : 600-1000 microns
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113A - SIPOXYSHIELD 656 (Cont'd)
3.6 Drying Time
Substrate To Handle Recoat Interval To Immersion
Temperature Minimum Maximum Water Buried
10°C 36 Hours 36 Hours 30 Days 84 Hours 60 Hours
30°C 10 Hours 10 Hours 9 Days 36 Hours 24 Hours
50°C 3 Hours 3 Hours 5 Days 8 Hours 5 Hours
60°C 90 Minutes 90 Minutes 3 Days 4.5 Hour 3 Hour
3.7 Recommended Equipment
Airless Spray(min 60:1 pump) : Tip size: 0.021 to 0.029 inch Nozzle Pressure:
3,200-4,100 psi
Twin Feed Application with inline heater : for details contact SIPCO TSD
Conventional Spray : Not recommended
Brush/Roller : For touch-up only
4. Technical Properties
4.1 Volume Solids (ASTM D2697) : 100 %
4.2 Product Weight (ASTM D1475) : 1.35 Kg/L
4.3 Viscosity (ASTM D562) : 85 – 105 Ku (mixed) 4.4 Flash Point (ASTM D93 or D56) : 121°C
8
STOPAQ - Approved Materials
Manufacturer - Approved Saudi Aramco Data Sheet
APCS-113C
Type of Coating : Visco-Elastic Coating System
Manufacturer : STOPAQ
Product Name : STOPAQ
SAP M/N (SAMS S/N) : 09-000-444 (CZH Paste); 09-000-436/438/442 (Wrapping-band CZH), 09-000-439/440 (Outer Wrap); and 09-000-441 (Fiber CZ)
Application Procedure
1. Scope
1.1 This specification covers the surface preparation and application/installation procedure for the STOPAQ® coating system on pipelines and piping, that are buried below ground.
1.2 The STOPAQ® system consists of the following:
a) Wrapping-band CZ H.
b) Polyvinyl Chloride (PVC) or PP Outer Wrap.
2. Condition of Steel Pipe Prior to Surface Preparation
2.1 Remove all weld spatters and slag.
2.2 Remove loose coating and/or heavy layers of rust.
2.3 Moisture condensation on the steel substrate is not allowed.
3. Surface Preparation Requirements
3.1 Blast cleaning is recommended if the pipe length is more than one meter. Surface profile is not critical but if blast cleaning is employed, commercial blasting to achieve a profile Sa-2 is acceptable.
3.2 The type and particle size of the abrasive material are not critical. Recycled abrasive can be used.
3.3 For a pipe length of less than one meter, tool cleaning (wire brushing) according to SSPC SP 2 is acceptable.
3.4 Any sharp metal protrusions exceeding 0.8 mm in height should be ground to prevent the possibility of the polyethylene layer being torn.
4.4 Before starting the wrapping of the wrapping-band CZ H, the following items should be ensured.
a) Allow proper accessibility to the pipeline from all directions for free movement of labor during the application.
b) In "Subkha" areas, the bell hole should be drained properly and continuously for a dry working condition during the application.
c) Use CZ H paste in areas of significant transition in the pipeline such as the welds on metal sleeves. This paste will enable a gradual transition from the higher edge of the metal sleeve to the original pipe body.
d) Apply the wrapping-band CZ H over the CZ H paste immediately after the adhesive application.
4.5 The Wrapping-band shall be applied onto the steel pipe without tension.
a) The first wraparound of the wrapping-band is done without advancing the roll. One complete circumferential wrapping around the pipe is made before starting the next wrapping.
b) After the first wraparound is finished, successive wraps should be performed with a minimum overlap of 10 mm or larger regardless of the width of the roll.
c) When a roll of the wrapping-band is finished, the next roll should be used starting at a distance of at least 100 mm before the end of the finished roll.
d) After the pipe is completely wrapped, another circumferential wrap is done at the pipe end. This acts as a "seal" to ensure that the end of the wrapping-band will not be removed.
e) Any areas of blisters or slackening of the wrapping-band shall be pressed or "massaged" by hand to improve the wrapping.
4.6 The outer wrap over the wrapping-band shall be applied with tension.
a) The wrapping of the outer wrap shall start 5 mm from the start of the wrapping of the wrapping-band. This will enable a 5 mm of the wrapping-band to remain exposed.
b) The first wrap of the outer wrap over the wrapping-band CZ H is done without advancing the roll.
c) Subsequent wraps with 50% longitudinal overlap should be maintained regardless of the width of the roll.
d) If a roll of outer wrap is finished, the succeeding roll should be initiated at a distance of at least 25 cm before the end of the finished outer wrap roll.
e) When the entire length of visco-elastic coated pipe has been over-wrapped with an outer wrap, a final wrapping similar to the first wrap as in (4.6.b, c, and d) must be repeated.
5 Patch Repair
5.1 Patch repair is done when the coating is removed for “window” inspection or if it is damaged by heavy earth moving equipment. The patch repair procedure shall be as follows:
a) Cut out the damaged area using a sharp blade cutter. Chamfer the surrounding coating.
b) Use new patch of wrapping band to cover the area where the coating is removed. Do not overlap the patch on the sound coating. Use several strips of the wrapping and if necessary to b applied next to each another (minimum 10 mm overlap with one another).
c) Install the outer wrap over the Wrapping band patch on the whole pipe circumference.
d) Make several wraparounds over the new patch of wrapping band until it is completely covered, and the outer wrap is at least 100 mm away from the edges of the Wrapping-band.
6. Testing Methods and Equipment
6.1 Holiday Detection
Holiday detection test is not normally recommended, but if required the following procedure is followed to determine inadequately coated areas.
a) Use a high-voltage, "spark" holiday detector at a voltage ranging from 10,000 to 15,000 volts. Use a full-circle coiled spring electrode.
b) Move the probing electrode over the pipe surface in one direction at a rate approximately 0.3 m/second. Mark defective areas.
c) Marked areas should be repaired as per paragraph 5.
6.2 Dew Point
a) Control of dew point is important to prevent moisture condensation on the steel pipe substrate during the application of this coating system.
b) The substrate temperature shall be 5°F higher than the dew point. Do not apply the coating when the pipeline temperature is less than 5ºF above the dew point.
6.3 Relative Humidity
Relative humidity shall not exceed 85% to ensure that no condensate is forming on the substrate during application.
6.4 Chloride Contamination
The performance of Visco-Elastic coating is not affected with the presence of chloride salts higher than the permissible (40 mg/cm²) Water wash for decontamination is not required.
7.2 Short Term or On-Site Storage
All Visco-Elastic coating system components are not recommended to be stored directly under sunlight for more than eight (8) hours. However, they can be stored under shaded areas for a few months.
Approval Date: May 5, 2009 Replaces
Revision Summary
13 December 2011 Revised the "Next Planned Update." Reaffirmed the content of the document, and reissued with minor changes.
