Seal-Tite® International has developed a line of unique pressure activated sealants that are designed to seal tubing hanger, casing hanger and wellhead leaks; production tubing and casing leaks; microannulus, sustained casing pressure and salt dome storage cavern leaks; control line, safety valve and packer leaks; as well as umbilical, flowline and subsea connection leaks. After the sealant has reached the leak site, the sealant begins to plate out on the edges of the leak, and simultaneously bridges across the leak to seal it.