How To by Hernon: Guide to Types of Adhesives Strength
Guide to Types of Adhesives Strength By Hernon Manufacturing
Most of the time when people talk about the strength of an adhesive they are really talking about a specific type of strength called tensile strength. Tensile strength refers to resistance against forces pulling a material directly apart. Such strain could result in a failure perpendicular to the applied forces. However, it is necessary to consider what other types of strength may be required by your adhesive as well since adhesives are not equally resistant to all types of force. Shear strength, for instance, resists forces moving in parallel but opposite directions. Failures due to shearing forces are parallel to the forces applied. Torque is the tendency of a force to rotate an object around an axis. Examples of torque
include the turning of bolts, screws or shaft and collar assemblies.
You will also want to consider whether the forces your adhesive must endure will be steady and predictable or erratic and variable. If they vary significantly ask your adhesive supplier for information on impact resistant adhesives. Drone manufacturing is a great example of an industry in need of impact resistant adhesives. The high probability of a rough landing, particularly for hobby drone aircraft creates the need for adhesives that can resist sudden changes
in force direction and intensity.
Finally, some adhesives are designed to maintain a gap that has been engineered into the product design. These adhesives exhibit compression resistance and endure forces applied from opposite directions converging on the same point. Failures due to compression include a material breakdown or inordinate expression of material from the adhesive joint.
If you are looking for the best impact resistance, Fusionbond® 375 from Hernon Manufacturing successfully withstood impacts from a 50 joule hammer and offers the highest impact resistance available today.
Click to learn more about: Fusionbond® 375