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About GST

GST Family of Products“Our commitment to our customers is to create the best possible products using only the finest raw materials available.”

– Jim Glessner, President

Global Sealer Technologies is a leader in the development and manufacture of innovative and advanced chemical products for the enhancement, protection and maintenance of all concrete, masonry and natural stone surfaces.  Our professional staff has a combined industry experience of over 100 years, from laboratory design to field application.

We continue to provide the marketplace with cost effective solutions for the construction industry, as well as for maintenance and restoration, with unparalleled knowledge and technical support.  Global Sealer Technologies is dedicated to serving our customers’ needs through education and the development of the latest technologies for the advancement of our product lines.