Casing End Seals are designed to prevent electrolytes from forming in the annular space between a carrier pipe and casing. Casing end seals are installed to allow for lateral movement of pipe due to expansion or contraction. Casing end seals are available for installations involving a need for fire retention. These seals are made of a high expansion wraparound sleeve specifically designed to provide a waterproof seal on pipeline casings. Casing end seals are used to eliminate the possibility of foreign material and small rodents from entering the void area between casing and carrier pipes.