Insignia seals were developed to address the fact that CIPP does not bond due to incompatibility of materials, shrinking of resins and the difficulties of bonding to a contaminated sewer pipe. An annular space is almost always formed between the CIPP liner and the host pipe. The annular space and lack of long-term bonding is resolved by placing Insignia gaskets between the host pipe and the CIPP lining. The gaskets are available as an End Seal, O-Ring or Connection Hat.