The graphs below display the lap shear strength of eight distinct Master Bond epoxy adhesives for dissimilar metal bonding. They show the bonding of aluminum to stainless steel, aluminum to titanium, and nickel to titanium. In every experiment, the 4 x 1 x 1/16 inch metal coupons were roughened and cleaned with acetone prior to bonding.
Supreme 10HT consistently displayed the highest lap shear strength among the products tested. However, when choosing an adhesive for dissimilar metal bonding, the processing and operating conditions play a large role as well. For example, if thermal conductivity is required, Supreme 10AOHT or Supreme 18TC may be better options. If a room temperature cure is needed, Supreme 11HT or EP21ND-LP may be desired. 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.
High Lap Shear Strength Adhesives for Titanium
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Supreme 10HT One part structural epoxy with high bond strength and excellent adhesion to similar and dissimilar substrates, especially composite materials. Requires oven curing at 250-300°F. NASA low outgassing approved. Serviceable from 4k to +400°F. Tough and durable. 85°C/85% RH resistance. |
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Supreme 10AOHT One part, oven cured epoxy system with excellent thermal conductivity and superb resistance to thermal cycling. Primarily used for bonding of heat sinks and sensors where heat transfer is desirable. Serviceable from 4k to +400°F. Convenient processing. |
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Supreme 18TC single component epoxy adhesive features unmatched heat transfer properties. Capable of being applied in bond lines as thin as 10-15 microns. Low coefficient of thermal expansion. Meets NASA low outgassing specifications. Low shrinkage upon curing Operating temperature is 4k to +400°F. |
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Supreme 11HT High peel and shear strength system. Convenient one to one mix ratio. Serviceable from -100°F to +400°F. Superior resistance to impact, thermal shock, vibration and stress fatigue cracking. Excellent toughness. Cures readily at room temperature. User friendly. Dependable dimensional stability. Readily machinable. |
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EP21ND-LP Two part, room temperature curing epoxy with easy handling and very good physical strength properties. Smooth paste. For bonding, sealing, coating. One to one mix ratio. Chemically resistant. Gap filling. Variable mix ratio allows adjusting hardness of cure. Low shrinkage. Service temperature range from -60°F to 250°F. |
