Peel strength

Peel strength refers to the ability of an adhesive to resist forces that attempt to pull it off a surface. This parameter is of great importance as it affects adhesion to different surfaces.

Peel strength depends on various factors such as the type of materials, surface preparation, temperature and humidity. To measure peel strength, a test specimen is usually used that is applied to a surface with an adhesive or coating. The test specimen is then peeled from the surface under controlled conditions and the force required to remove the material is measured.-Examples of different claims for peel strength are armour tape and masking tape. These two tapes are intended for different locations and require different peel strength at the same time.

• Armour tape has to withstand different weathering, environmental conditions and loads.
• The masking tape hingen is not supposed to have this. It should prevent paint from flowing underneath, but also be easy to remove from the wall (peelable).

Peel strength is the average load value per bonded sample width required to separate the bonded materials at a separation angle of 180 degrees and a separation rate of 152.4 mm/min.