Overview. HydraTite® is an internal joint sealing system that offers customized mechanical remediation without expensive excavation. The system consists of a rubber seal held in place by stainless steel retaining bands. Each seal is custom-made. The seals can be interlocked to span long lengths of pipe, and can include a backing band to. Pipe penetration seal is a reusable, permanent, water-tight rubber seal. The MetraSeal Pipe Wall Penetration Seal quickly creates a mechanical water-tight seal, filling the space around any round pipe including: concrete, steel, plastic, cast iron, copper, and electrical conduit to name a few. The modular seal design creates a permanent.