What Is Peel Testing?

A peel test is a basic form of mechanical testing that measures the properties of an adhesive bond. Peel tests involve applying a tensile force to a flexible substrate that is bound by an adhesive to either another flexible substrate (such as tape, thin film, or rubber) or a rigid substrate (such as metal, rigid plastic, or composite). Common results from a peel test are initial peak force, average force over the seal, and peel strength (average force per width of the specimen).

Related Video(s)

ASTM D903: Peel or Stripping Strength of Adhesive Bonds

ASTM D903 is a common tensile test used to evaluate the peel or stripping characteristics of adhesively bonded materials used in a wide variety of applications in an even wider range of industries. Some examples of materials tested to ASTM D903 are plastic films, adhesive labels, and waterproofing materials.

ASTM D3330: Test Method for Peel Adhesion of Pressure-Sensitive Tape

ASTM D3330 is a major peel testing standard that outlines the requirements for determining the peel adhesion properties of pressure-sensitive tapes such as surgical, electrical, packing, and duct tape. The standard includes 6 different methods (A-F) for measuring peel adhesion with both 90° and 180° peel tests. This guide is designed to introduce you to the basic elements of ASTM D3330 testing, including an overview of the equipment, software, and specimens needed.

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