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TEST |
PROTECTO 401 |
Two Component Polyurethane Lining |
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SALT SPRAY 5% solution ASTM B 117-85 |
No undercutting at scribe. No damage to panel. 24 months duration |
1- 1/2″ undercutting at scribe. Damage to panel. 3-3/4 months duration. Test Terminated |
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TAP WATER IMMERSION 120 ° F Rated using ASTM D714-87 |
No undercutting at scribe. No damage to panel. 24 months duration |
3/4″ scribe undercut 2-1/2 months duration Test Terminated |
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SODIUM HYDROXIDE IMMERSION 25% solution 140 ° F Rated using ASTM D714-87 |
No effect 24 months |
Softened film, discoloration and etched surface 2-1/2 months, Test Terminated |
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CATHODIC DISBONDMENT Attached Cell Method ASTM G-95 30 Days/Average 3 samples |
0.17 mm disbondment |
10.0 mm disbondment |
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IMPACT RESISTANCE ASTM G-14 18-month-old linings. Applied to abrasive blasted Ductile Iron Pipe (non-ground pipe) |
72 in/lbs |
75 in/lbs |
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EXTERIOR EXPOSURE Continuous exterior exposure to weather and sunlight Birmingham, Alabama |
2.5 years Chalking, negligible loss of film – No effect on metal protection. |
2.5 years Chalking, negligible loss of film – No effect on metal protection. |
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HYDROGEN PEROXIDE IMMERSION – 25% Solution |
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77 ° F ASTM D-1308 |
No effect Passed |
Large Blisters Failed |
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NOTE: |
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All materials were tested with an average film thickness of 40 mils on production run ductile iron pipe |
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