Definition - What does Peel Strength mean?
Peel strength is a measure of the adhesive strength of two or more materials that have been bonded together. A peel test is used to calculate the peel strength, which is then used to determine how effective an adhesive will be when joining certain types of materials.
Corrosionpedia explains Peel Strength
Peel strength is measured by means of a peel test. During a peel test the materials are pulled apart at a constant speed. The average force required to pull the materials apart is then used in conjunction with the width measurement of the bond to determine the peel strength. Frequently used angles of separation are 90 degrees and 180 degrees. Special equipment is required to perform this test.
Peel strength is a measurement used in many different industries and for a variety of applications. Coatings in the pipeline industry have their peel strength tested to ensure that the coating will have adhesive properties sufficient to protect the base material of the pipeline. Another application where peel strength is frequently tested is to ensure that adhesive labels will not fall off over time.