Jay A. Johnston

Jay A. Johnston

Jay A. Johnston is a Senior Scientist at Bayer MaterialScience LLC.
Articles

ARTICLES

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Put Some Moxie in Your Epoxy: Toughening Epoxy Adhesives with a Polyurethane Prepolymer

The addition of a low-viscosity, blocked polyurethane prepolymer improves the strength and reduces the cure time of epoxy adhesives.
Jay Johnston Covestro
Jay A. Johnston
Cassie Popovski
Cassie Popovski
October 5, 2020

Adhesives play an important role in creating sustainable and resilient infrastructure. While the hybridization of adhesives is not a novel concept, recent innovations in raw materials have unlocked new possibilities for toughened epoxy systems.


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Toughening Epoxy Adhesives

Toughening Epoxy Adhesives

The addition of a polyurethane segment into the epoxy polymer improves strength and heat resistance for commercial epoxy adhesives.
Jay Johnston Covestro
Jay A. Johnston
July 1, 2013

Due to their different physical properties, epoxy adhesives and polyurethane adhesives are sold into different segments of the adhesives market.


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