A variety of Master Bond products were tested for their lap shear strength for PEEK to PEEK, with the results displayed below. In order to perform this test, 4 x 1 x 1/16 inch coupons were roughened and cleaned with Isopropyl alcohol.
Graph 1 depicts Master Bond one component epoxy systems. Among these one part epoxy systems, EP3RR-80 has the highest lap shear strength value.
As shown in graph 2 below, EP31ND displays exceptional lap shear strength.
However, when choosing the proper adhesive, strength properties are not the only factors to take into consideration. Specific processing and operation conditions must also be kept in mind. For example if thermal conductivity is needed, SUP12AOHT-LO may be desirable. If a lower viscosity is needed, EP30-2 may be more suitable. For more information on Master Bond high strength epoxy adhesives, please contact our technical advisors.
Disclaimer: The findings in this article are not meant to be used for specification purposes.
Lap Shear Strength Adhesives for PEEK
Two part epoxy system with ultra low viscosity and remarkable cryogenic properties. Withstands rapid drop in temperature and is NASA low outgassing approved. Optically clear. Long working life. Low exotherm. Excellent resistance to acids, bases and many solvents. Outstanding electrical insulative properties. Service operating temperature range from 4K to +275°F.