50mm

50mm

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CANUSA-CPS is registered to ISO 9001:2008.

Installation Guide

The Coating Repair Patch (CRP-PP) is supplied in 150mm x150mm (6" by 6") patches or in rolls 300mm, 150mm or100mm wide by 15m long, and can be field cut-to-size. PPMelt Stick is used to repair surface defects (holidays) in themainline coating. The PP Adhesive Filler is used to fill voids inthe coating. Canusa Epoxy/Primer is also supplied in a kitwith gloves and applicator pad.

CRP-PP Repair Patch, PP Melt Stick and PP Adhesive Filler forPolypropylene coated pipelines.

PP Pipeline Repair Products

Repair Analysis -Mainline Coating

Based on the above type and size of damage, combine each step

Storage & Safety Guidelines

These installation instructions are intended as a guide forstandard products. Consult your Canusa representative forspecific projects or unique applications.

PP Surface preparation -Minor Repair

Using a hand grinder with a P24-P40 gritflat abrasive disc,chamfer the edges of the polypropylene coating surroundingthe damaged area until a smoothly contoured surface isobtained in the repair area. Using a grease and lint-free rag,clean the prepared coating with an approved cleaner (i.e.Xylol, Xylene, trich) to remove the presence of oil, grease andother contaminates.

To ensure maximum performance, store Canusaproducts in a dry, ventilated area. Keep productssealed in original cartons and avoid exposure todirect sunlight, rain, snow, dust or other adverseenvironmental elements. Avoid prolonged storageat temperatures above 35C or below -20C

Product installation should be done inaccordance with local health and safetyregulations.

(95F)(-4F).

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Equipment List

Propane tank, hose, torch and regulatorAppropriate tools for surface abrasion: grinder, abrasiveblasting equiptHot air tool (3400 Watt) and power sourceAppropriate tools for cleaning: rags & approved cleanerTools: roller, digital thermometer, knife, marker, measuringtape, scraper / spatula & pliersStandard safety equipment; gloves, goggles, hard hat, etc.

PP Surface preparation -Major Repair - Marking Damage

Using a marker, mark a rectangle 50mm beyond thedamaged areas on all sides (major repair area).

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CRP-PP Patch

Base

Cure

Epoxy/Primer

PP AdhesiveFiller PP Melt Stick

1 3

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Part No. 99060-153

Type of Damage Size Repair Method

Minor Damageof 3LPP Outer Jacket

Minor Damageof 3LPP Outer Jacket

Damage Extendingto Bare Steel

Damage Extendingto Bare Steel

< 1 cm2

< 50 cm2

< 50 cm2

> 50 cm2

PP Surface Preparation, PP Melt Stick

PP Surface Preparation, PP adhesive filler,and CRP-PP Repair Patch

PP Surface Preparation, P Epoxy/Primer,PP adhesive filler, and CRP-PP Repair Patch

PP Surface Preparation, P Epoxy/Primerand GTS-PP HSS

4

6

= 30

PP Surface preparation -Major Repair - Exposed Metal

Using a knife, carefully cut out only the damaged coatinginto a smooth sided shape.

PP Surface preparation -Major Repair

Using a hand grinder with a P24-P40 gritflat abrasive disc,lightly abrade the repair to expose FBE and/or Bare metalsurface and bevel the edges of the repair area to a 15 to 30degree angle. Using the hand grinder, lightly abrade themainline coating in themajor repair area.

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Coating Repair Products - Polypropylene

140C100C

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140C100C

Follow the Preparation, Mixing and Application instructionsprovided with the supplied Canusa Epoxy Pack. Use theapplication pad to apply the epoxy to the FBE/steel area of themajor repair area. Ensure all FBE and exposed steel iscovered to a uniform thickness of 150-200m (6-8mils).

Using the hot air tool, heat the epoxy and surrounding coatingto 100-140C until cured.

Steel/Primer& Coating to100-140C

140C100C

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Using the hot air tool, heat the repair area to 100 - 140C.Using the digital thermometer, ensure the correcttemperature has been reached.

Base

Cure

Epoxy BP13

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P-Primer EpoxyP-Primer Epoxy -Epoxy Primer Cure

PP Adhesive Filler -Heating Repair Area

measure

L

W

L

w

50mm

17

Measure the dimensions required for the CRP-PP patch. Cutthe CRP-PP patch to the appropriate size to cover the patcharea, with a minimum 50 mm overlap from any point of thedamage. Cut 4 corners off of patch to avoid lifting of corners.In order to improve application conditions and to provideoptimum performance, the CRP-PP repair patchmay be pre-conditioned to a temperature of 60-80C prior to applicationover the damagedPP coating area.

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PP Adhesive Filler -Heating Adhesive Filler

PP Adhesive Filler -Applying Adhesive Filler

CRP-PP -Patch Measurement

While holding the cut-to-length CRP-PP Filler or melt stripwith a pair of pliers, use the hot air tool to heat the materialuntil it becomes soft and flexible.

Using the pliers and the scraper / spatula, fill the affected areawith the heated CRP-PP material. Use the hot air tool to heatthe CRP-PP material until it is soft and pliable. Force theactivatedmaterial into the repair area with a scraper / spatula,heating and smoothing to achieve a uniform finish. Ifnecessary, grind or rasp to achieve a flush finish with the PPmainline coating.

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CRP-PP -Heat PP repair area

CRP-PP -Heat Repair Patch

Use the hot-air tool to pre-warm the repair area to100 - 140C. Use a temperature measuring device to ensurethe correct temperature.

Using the hot air tool, both sides of the CRP-PP repair patchshall bewarmed to soften the adhesive and backing.

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Coating Repair Products - Polypropylene

PP Melt Stick -Heating Melt Stick

While holding the cut-to-length PP Melt Strip use the hot airtool to heat the end of the material until it becomes soft andflexible.

PP Melt Stick -Apply Melt Stick

Holding the strip, fill the affected area with the heated PP MeltStick. Use the hot air tool to heat the PP Melt Strip until it issoft and pliable. Force the activated material into the repairarea or depression with a scraper / spatula, heating andsmoothing to achieve a uniform finish.

PP Melt Stick -Quality Check

Visually inspect the repair area. If necessary, grind or raspany protruding material or uneven areas to achieve a flushfinish with the PP mainline coating. Holiday test to projectrequirements

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140C100C

PP Melt Stick -Heating Repair Area

Using the hot air tool, heat the minor repair area to 100 -140C. Using the digital thermometer, ensure the correcttemperature has been reached.

9

Coating Repair Products - Polypropylene

10mm

At application of appropriate repair materials, a visualinspection shall be performed in order to verify the following:

The applied PP melt strip has been applied to a smooth,uniform finish.There shall be no significant wrinkles, voids, cracks, orburn marks on the applied repair materials or surroundingsleeve/coating.The adhesive shall protrude all around the outer perimeterof all installed CRP-PP repair patchmaterial.The distance between the outer edges of the repair patchand the damaged coating area shall be a minimum of50mmafter installation.

For damaged areas in excess of 50cm , aGTS-PP heat shrinksleeve shall be used in place of the CRP-PP repair patch.

2

GTS-PPWrapid Sleeve

Base

Cure

P Primer26

For this repair, a new coating cut back area shall be created.The 3LPP mainline coating shall be stripped away from thefield joint area so that a minimum of 10 mm is cut awaybeyond the edges of the damaged area. If necessary, thewidth of the sleeve may be reduced prior to application usinga straight edge and a sharp utility knife, ensuing that asmooth cut is achieved. The final width of the sleeve shallextend a minimum of 50mm beyond the edges of the newcutback area.

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Repaired Area - Inspection GTS-PP - Repair Notes

GTS-PP - Repair Measurement

The repair area shall be heated using an induction coil toachieve a steel surface temperature of 140 to 160C to aid inremoval of the 3LPP factory coating. If necessary, a windowcan be cut down to the steel so accurate steel temperaturecan bemeasured.

A utility knife shall be used to gently cut the 3LPP coatingaround the entire circumference of the repair area asindication by markings on pipe. A longitudinal cut shall thenbemade between the two circumferential cuts.

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The 3LPP coating between the two circumferential cuts shallthen be removed by 2 operators positioned on both sides ofthe pipe using heat resistant gloves to pull the coating fromthe repair area at an angle of approximately 90-120 in bothdirection. Continue until themainline coating is removed.

140C100C

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GTS-PP -Pre-heating for coating removal

GTS-PP -Cutting the Mainline Coating

GTS-PP -Removing the Mainline Coating

Once the coating is removed, then the sleeve shall beinstalled as per the detailed installation guide for GTS-PP. Thisincludes full surface preparation as required in that installguide, and the application of the P-Primer Epoxy.

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SO

LVENT

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GTS-PP - Surface preparation Onshore and Offshore Guidelines

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After Repair Applications are complete, allow therepair area to cool to less then 80C prior to laying(for offshore applications, the repair area can bewater quenched)

Test patch adhesion by gently pulling the edge of the backingback to ensure the adhesive remains in place and is fullybonded to the factory coating. The patch is well bondedwhen adhesive and coating remain intimately contacted. Ifrequired to improve bonding, more heat should be applied tothe repair patch.

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CRP-PP -Post heating

CRP-PP -Rolling

CRP-PP -Quality Check

Using a propane torch and a medium flame, uniformly heatthe entire outer surface of the CRP-PP repair patch andsurrounding area for aminimumof 2-4minutes.

During and after post heating the repair patch, carefully rollthe patch from the center towards the each edge.

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Using the hot-air tool and roller, weld the underside of theCRP-PP Patch to the repair areal of the PP mainline coating.Ensure a positive contact.

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CRP-PP -Hot Air Welding

10mm

Canusa warrants that the product conforms to its chemical and physical description and is appropriate for the use stated on the installation guide when used in compliance with Canusas written instructions. Since manyinstallation factors are beyond our control, the user shall determine the suitability of the products for the intended use and assume all risks and liabilities in connection therewith. Canusas liability is stated in the standardterms and conditions of sale. Canusamakes no other warranty either expressed or implied. All information contained in this installation guide is to be used as a guide and is subject to change without notice. This installationguide supersedes all previous installation guides on this product. E&OE

Printed on recycled paper. Recyclable.

www.canusacps.com

CANUSA-CPSSHAWCOR LTDa division of .

25 Bethridge RoadToronto, OntarioM9W 1M7,CanadaTel: +1 (416) 743-7111Fax: +1 (416) 743-5927

Canada U.S.A./Latin AmericaCANUSA-CPS

SHAWCOR INC.a division of2408 Timberloch PlaceBuilding C-8The Woodlands, Texas77380, U.S.A.Tel: +1 (281) 367-8866Fax: +1 (281) 367-4304

Europe/Middle EastCANUSA-CPSa division of Canusa Systems Ltd.Unit 3, Sterling ParkGatwick RoadCrawley, West SussexEngland RH10 9QTTel: +44 (1293) 541254Fax: +44 (1293) 541777

Asia/PacificCANUSA-CPSa division of .#05-31, Blk 52, FrontierUbi Avenue 3Singapore408867Tel: +65-6749-8918Fax: +65-6749-8919

SHAWCOR LTD

Coating Repair Products - Polypropylene

IG-A4- rev019CRP-PP-

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