Profile: HMT Rubbaglas Ltd. is a supplier of aluminum dome, external primary seals, internal primary seals, external secondary seals, internal secondary seals, roof drain systems, and fire fighting systems. We also supply external floating roofs, internal floating roofs, flat panel covers, oily water separator covers, seal emission control devices, specialty products, and miscellaneous seals & tank parts. We also offer services like tank repair, turnkey inspection, calibration of new tanks, coatings & linings, and engineering fabrication. Our external primary seals are used for aboveground floating roof storage tanks. These primary seal designs include state-of-the-art mechanical shoe seals, wiper seals, tube seals, foam seals, and special application type seals.