Study Demonstrates the Effect of Heat on Lap Shear Strength of Structural Adhesives

Posted on 5/16/2019 8:49:38 AM By ASC

A recent MasterBond study demonstrated the company’s success in engineering structural adhesives that retain their lap sheer strength despite being exposed to high temperatures over an extended period of time. A standard two-part epoxy that can be cured at room temperature was used as the control for comparison purposes and lap sheer strength for aluminum to aluminum bonding and aluminum to stainless steel was measured before and after 500 hours of exposure to temperatures of 150C.

After the appropriate heat-curing curing schedule for the adhesives had been applied, and the heat exposure test had been conducted, the research team measured the lap sheer strength of MasterBond’s EP17HTDA-1, SUP12A OHT-L9, FLM 36, and SUP10HT structural adhesives as compared to the standard epoxy.

While regular epoxy was unable to retain its lap sheer strength, MasterBond’s structural adhesives were not significantly affected, according to the company, with FLM36 showing the least difference in lap sheer strength after heat exposure.

comments powered by Disqus