GemSeal manufactures asphalt pavement maintenance products for use by commercial contractors on asphalt surfaces surrounding retail, residential, and industrial properties. Founded in 1957, GemSeal produces the finest coal tar pitch emulsion in the industry. Respected for high business ethics and service, the family owned enterprise, now in its third generation of ownership and management, has earned its position as the leading manufacturer of quality sealers and services in the U.S.