ASTM D413 : rubber property – adhesion to flexible substrates
These test methods are used to ensure the quality of a product by determining the force per unit width required to separate a rubber layer from a flexible substrate such as fabric, fibre, wire, or sheet metal.
The acceptable value of adhesion measured will, of course, vary from product to product due to different rubber formulations, flexible substrates, and types of products.
However, once a product is established, minimum values of separation force can be determined and agreed to by producer and consumer and both can monitor to assure maintenance of the agreed-upon minimum value.
ASTM D413 determines the adhesion strength required to separate a rubber layer from a flexible substrate such as a fabric, fiber, or sheet metal. Our universal testing machines can be used to perform the method described in this standard.
In an adhesion test, a layer is stripped off a test specimen using an applied tensile force – this results in tearing at the bonded surfaces. The value of interest is the Adhesion Strength – defined as the average force divided by the width of the specimen.
The standard defines three types of specimens: Type A – 180º peel, Type B – 90º peel, and Ring specimens.