Rubber Lining Adhesion Test

There are many conditions that can affect the adhesion of rubber to various substrates such as metal and fabrics.

Rubber lining adhesion test.

On metal substrates a more formal version of the knife test is the tape test. Relevant adhesion test results obtained during the last two projects performed by the lining applicator may be referred to in. For polymer rubber linings qualification of procedures may include adhesion testing. Adhesion testing is a critical aspect of multi component rubber products and frequently should be considered for both rubber to rubber interfaces and rubber to reinforcement interfaces.

The testing procedures include peel strength or tensile strength of the adhesion edge. This test peels rubber conveyor belting and measures the average peel force over a 5 section. A standard method for the application and performance of this test is available in astm d6677. There is no known correlation to other adhesion test methods pull off tape etc.

Note before applying adhesive to the lining the rubber may require to be freshened by giving it a wipe with solvent. Method c measuring adhesion of rubber to metal with a conical specimen. The standard is divided into. Method a rubber part assembled between two parallel metal plates.

Pressure sensitive tape is applied and removed over cuts made in the coating. The result is often critical to the acceptance or rejection of a coating process as the adhesion value quoted by. Allow to dry until tacky on both the substrate and the rubber approximate 1 hour. Chapter rubber compound and vulcanizate testing is related to the chapter on rubber raw material testing and provides a comprehensive description of the system of testing rubber compounds materials and vulcanizates starting from sampling and testing vessels up to evaluation of test results according to specific standards.

Pull off adhesion testing is widely used to assess the protective coating process and to determine if a coating is fit for service in new construction and for repairs to existing structures. Method b 90 stripping test rubber part assembled to one metal plate. Method e of astm d429 determines the adhesive strength of rubber tank lining to a tank wall using a 90 degree strip test. The astm d429 includes the test procedure to determine the adhesion of rubber to rigid metal substrates.

Either the rubber material fails internally or at the adhesion surface to the metal. 3 4 just prior to the application of the rubber repeat above step 3 3 using tack on substrate then apply tack on rubber lining. Once the test is complete you will want to record the force vs displacement. If a procedure that includes adhesion testing is used the quality control adhesion testing may be considered optional.