When petro chemical polyurethane type foams come in contact with oil they decompose forming oil residuals that result in creating voids in the tank being abandoned.
Polyurethane foam is installed in “pours”. This method takes several repetitive applications. The installer relies on guesswork as to how much chemical is needed for each application. The reason is polyurethane foam’s expansion rate is directly related to temperature and weather conditions when it is being used. In cooler weather its expansion is much lower than in warmer conditions. If the installer misjudges the pour rate, you could end up with large voids or a partial filled tank. This leads to water entering the tank after rusting out causing further deterioration of the foam and in turn sinkholes in the surface area above the tank.
Tripolymer® Tripolymer 105-TM (fireguard) foam meets all criteria as a solid, inert oil tank abandonment media in many areas, including the State of New York DEP, New York City Fire Department, The State of Connecticut Department of public safety, the Nassau County Department of Health, and many others. For more info, please call our office at (914) 428-2517 or email us at info@tripolymer.com
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