Product selection, as well as proper application is crucial to the success of the repair. As a guideline, the following issues should be considered when selecting the correct product:
Chemical compatibility – All the chemicals in the service application should be verified for their chemical compatibility realizing the effect of their individual component concentrations.
Service operating pressure and severity of leak – Will the addition of fibers be required to prevent extrusion and provide additional bridging?
Service operating temperature and surface temperatures
Size of the sealant cavity or void – Will the addition of liquids be required to increase the sealants travel characteristics?
Necessary cure or work time – Slower curing sealants have better travel characteristics while faster curing sealants enhance leak containment.
Is an elemental analysis or nuclear grade sealant required?
Are silica free or food grade sealants required?
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