Cathodic Protection
Corrosion is an electrochemical process in which a current leaves a structure at the anode site, passes through an electrolyte,
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Painting Over Galvanized Steel
Galvanizing is a process in which a coating of zinc is applied to a steel surface from a bath of
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Curing Mechanisms
Curing Mechanisms Curing is the mechanism that a specific coating uses to transform from the liquid state found in the
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DFT Gage Adjustment
Coating thickness shall be measured in accordance with SSPC: The Society for Protective Coatings Paint Application Standard No. 2 (SSPC-PA
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Holiday Test
The procedures to be used for determining holidays in epoxy coatings on ferrous materials are described in this method. This
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Pull Off Test
The general pull-off test is performed by securing a loading fixture (dolly, stud) normal (perpendicular) to the surface of the
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Paint Defects 7 – Orange Peel
Orange peel refers to texture in the finished painted surface similar to that of an orange skin. Excessive orange peel
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Paint Defects 6 – Fish Eyes
Fish eyes are a type of coating defect which is characterized by circular voids or separation in the coating. Fish
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Paint Defects 5 – Cracking and Mud Cracking
Paint coatings with visible cracks which may penetrate down to the substrate. Cracking comes in several forms, fro minute cracking
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Paint Defects 4 – Pinpoint Rusting
Small dots or points of rust on a primed or painted steel surface generally clustered in an area or groups
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