JENNMAR’s J-Panels are an economical solution for underground mine ventilation control and can be used in conjunction with J-SEAL or 1-Day J-SEAL, specialized MSHA-approved foaming cement. These seals are designed to be installed with a JENNCHEM continuous placer type pump and are also used for general backfilling applications in coal or hard rock mining. J-SEALs are significantly thinner in design than competing brands, yet maintain greater shear strength. The rapid strength gain provides immediate ground support to the surrounding strata with quicker cure times to meet seal approval specifications in days rather than weeks.
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