Accelerometer Adhesives

Many accelerometer adhesives have been successfully used for securing mounting bases to test objects. These include epoxies, waxes, glues, gels, and dental cement. Some provide more permanent attachment than others. Stiffer adhesives provide better transmission of high frequencies. Adhesives should be selected which perform adequately for the required application and environmental conditions. PCB® offers petro wax and quick bonding gel.

How do I remove an accelerometer adhesive mount sensor?

Obviously, the mounting of an accelerometer is critical to a successful measurement. Accelerometers have a cost. You want to protect your investment. The proper removal of an accelerometer extends its useful life. Improperly removing the sensor may cause immediate damage and failure. Do not use an impact technique (hammer, chisel, knife) to remove the sensor. Soften the adhesive first by use of a debonding agent. Then use a removal tool by gently twisting the accelerometer free of its mount.

To avoid damaging the accelerometer, a debonding agent must be applied to the adhesive prior to sensor removal. With so many adhesives in use (glues, dental cement, epoxies, etc.), there is no universal debonder available. The debonder for the Loctite 454 adhesive that PCB® offers is Acetone. If you are using anything other than Loctite 454, you will have to check with the individual manufacturer for the debonding recommendation. The debonding agent must be allowed to penetrate the surface in order to properly react with the adhesive, so it is advisable to wait a few minutes after applying before removing the sensor.