Water or water vapor is present in most pipeline casings making possible galvanic corrosion of the carrier pipe. Also, a “water short” can occur through the water in the casing, allowing cathodic current to flow through the water and on to the pipe in the casing.
Fill-Coat #1® is a low melt point, hot-installed petrolatum compound that sets up relatively firm at ground temperatures commonly found in normal pipeline operations. It has good “wetting” and adhesion characteristics and prevents possible corrosion of pipe in casings.
Fill-Coat #6® is a cold-installed/high temperature petroleum based casing filler compound that can be installed at ambient temperature as low as 50°F (10°C) with portable pumps. The product is used in bridge abutment casings, and it can be used in casings with elevated temperatures.
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