Adhesive Tape Peel Testing

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Adhesive Tape Peel Testing

Peel testing of adhesive and pressure sensitive tapes is used for quality assurance, and provides a means of assessing uniformity of the adhesion of a given type of tape. The assessment may be within a roll of tape, between rolls, or between production lots. Adhesive properties for tapes are measured using a standard test surface, a specified angle and test speed. Test results monitor uniformity of adhesive coatings, bonding adhesion strength and force to remove face stock. Sample failures reveal the weak link of a product or process. Cohesive failure produce a tacky residue on both surfaces, adhesive failure reveals a premature peel, failure along the adhesive face stock and test surface, and substrate tearing. Tape testing in accordance with international standards ASTM D3330 is used to determine the peel strength of pressure sensitive tape. There are 6 different test procedures within ASTM D3330 for peel adhesion strength testing. These methods include 180 degree peel testing of single and double sided tape, and 90 degree peel testing of single sided tape. EN 1939 is a European testing standard for determining the adhesive strength of tape through peel testing. Required equipment for peel testing TestResources universal material testing machines determine the peel strength, bonding strength, and shear properties of adhesives and tapes. TestResources test machines meet the requirements specified in ASTM D3330 and EN 1939 with test procedures for constant-rate-of-extension and constant-rate-of-load machines. Load cells are fitted to specific load applications to ensure the highest resolution of tests.