How to measure properties of pressure sensitive adhesive tapes

Force that is generated by peeling off the tape from stainless plate to the angle of 180° (or 90°).

It is the most common property to make a selection of tape. The value of adhesion varies by temperature,adherend (material the tape to be applied to), applyingcondition.

Force that is needed to adhere to adherend by light force. The measurement is done by setting adhesive tape with the adhesive face upward to the inclined plate with the angle of 30° (or 15°), and measure the maximum size of SUS ball, which stops completely within the adhesive face. This is the ef fective method to find initial adhesion oradhesion at low temperatures.

Resistant force of tape, which is applied to stainless plate with static load (typically 1kg) attached to the length direction.

Distance (mm) of displacement af ter 24 hours or time (min.) elapsed until the tape drops from the stainless plate.

Force when tape is pulled from both ends and breaks. As larger the value is, the higher the strength of the backing material.

This is measured at the same time of measuring tensile strength.

Percentage of elongation, when tape is to be pulled from both ends until break, is measured.

If the value is 50%, it means 100mm tape is able to elongate to 150mm.

Force when double sided tape is sandwiched with two test panels and pulled from both ends until break.