Welcome to the home of LymTal International and the Iso-Flex brand of products. LymTal International was founded by Frank Lymburner and Magdy Talaat, two senior executives of the Harry S. Peterson Co. (HSP), a nationally known manufacturer and installer of waterproofing products established in 1929.
In 1994, LymTal purchased the manufacturing, research and warehouse facilities of HSP and absorbed much of the experienced workforce at these facilities.

With over 50 years of experience in the development, manufacturing and use of polyurethane technologies, LymTal provides the highest quality products and services in the industry. To insure consistency and quality, all Iso-Flex products are developed and manufactured in a controlled environment within our own facility.

Our combination of manufacturing and construction experience brings unique benefits to engineers, owners and contractors. The Iso-Flex product line of traffic coatings, roof coatings, sealants, penetrating sealers and expansion joint systems provides a complete package of products for the protection of concrete structures.

In addition to its premier Iso-Flex product line, LymTal is constantly expanding its role by providing innovative and custom new products, private labeling, toll manufacturing, and toll packaging services. 

For further information on all of LymTal's products and services, please choose from one of our four operating divisions by clicking on the provided links.

Our Divisions


Commercial Waterproofing Division


Bridge & Transit Division



Roofing Division


Toll Manufacturing Division



If you have a question regarding the use, application, or performance features of our products, our technical support staff is here to help. Simply click on the icon below to send us an e-mail message. We'll direct it to the appropriate individual and get an answer for you, usually by the next business day.



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