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HBE-95 High Build Epoxy Coating

Joint Protection Options. . 3LPE Joint Protection. 3-Layer Polyethylene - What is it?Heat Shrink Sleeve vs. Liquid Applied TechnologiesApplication CriteriaFactors affecting Long Term Performance. 3-Layer Polyethylene What is it?. Mainline Coating with:FBE PrimerHigh Shear AdhesiveExtruded Polyethylene jacket.

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HBE-95 High Build Epoxy Coating

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    2. Joint Protection Options

    3. 3-Layer Polyethylene - What is it? Heat Shrink Sleeve vs. Liquid Applied Technologies Application Criteria Factors affecting Long Term Performance

    4. Mainline Coating with: FBE Primer High Shear Adhesive Extruded Polyethylene jacket

    5. 3-Layer Heat Shrink Sleeves What Are They? Mirror the 3LPE mainline coating Performance based on p/l design requirements 3-layer system Epoxy Primer High Shear Adhesive Crosslinked Polyethylene backing

    8. Liquid Applied Systems What Are They? Brush or spray applied coatings Single application or multiple passes to achieve DFT Technologies: Urethanes Tar extended urethanes Epoxies

    10. Installation What is Important? Heat Shrink Sleeve Surface Prep Pre-heat Sleeve Wrap Closure Heat Shrinking (Unaffected by ambient conditions) Liquid System Applicator protection Equipment set-up Surface Prep Pre-heat Mix Ratio Spray Cure Time (Amb. conditions critical <80% RH)

    11. Surface Prep. What is Important? Heat Shrink Sleeve Sa2.5 desired Lesser prep may be acceptable 2 mil profile typical Liquid System Sa2.5 required 2 - 4 mil profile required

    14. Product Performance Heat Shrink Sleeves vs. Tar Urethane

    15. Heat Shrink Sleeves vs. Liquids Lap Shear HSS Lower values vs. liquids but exceed pipeline spec requirements Epoxy layer on steel Passes Alyeska Shear Performs in-service thermal stress soil stress at operating temps. Liquids High values - 25 to 50 times HSS Impressive but irrelevant

    16. Heat Shrink Sleeves vs. Liquids Adhesive / Cohesive Strength HSS Lower cohesive strength relative to adhesive strength Failure mode cohesive, leaves adhesive layer on epoxy primer Liquids High cohesion through chemically crosslinked structure Typical adhesion failure mode leaves unprotected steel

    17. Heat Shrink Sleeves vs. Liquids Thermal Cycling HSS Flexible enough to accommodate thermal cycling - up to 80°C Fully compatible at the 3LPE Mainline interfaces Excellent resistance to moisture and ground water at operating temps. Liquids Excellent on FBE Differential movement vs. 3LPE - may lead to interfacial cracking Urethanes exposed to >50°C absorb water, limit long term performance Good short term results, long term unproven

    18. Heat Shrink Sleeves vs. Liquids Cathodic Disbondment HSS Epoxy primer and adhesive combination offer superior corrosion protection Excellent CD resistance up to 80°C Liquids Limitations on operating temp Good short term results, long term unproven Higher values than 3LHSS

    19. Heat Shrink Sleeves vs. Liquids Compatibility with Mainline Coatings HSS Three distinct layers of protection Epoxy primer Adhesive Polyethylene Backing Mirrors the mainline coating Liquids Single layer must bond with four distinct interfaces Steel Epoxy Adhesive Polyethylene Potential for failure

    21. Heat Shrink Sleeves vs. Liquids Canusa Has Both HSS Sleeves to meet specific design criteria Ambient 2-layer 3LPE Polypropylene FBE Liquids Liquids Epoxies & Urethanes for Specific Coatings High Build Epoxy for FBE Ceramic Urethane for Directional Drilling Urethane Corrosion Coatings for Pipelines

    22. Heat Shrink Sleeves vs. Liquids Summary HSS System that closely matches a 3LPE mainline coating Best performance where required Adhesion Shear CD Resistance Impact Resistance Liquids Application sensitive Mix Ratio sensitive Lacks compatibility with 3LPE Performance suited for epoxy or urethane mainline coatings

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