Rubber Lining Adhesion Test

This test peels rubber conveyor belting and measures the average peel force over a 5 section.

Rubber lining adhesion test.

Method c measuring adhesion of rubber to metal with a conical specimen. 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. Either the rubber material fails internally or at the adhesion surface to the metal. Pressure sensitive tape is applied and removed over cuts made in the coating.

If a procedure that includes adhesion testing is used the quality control adhesion testing may be considered optional. The astm d429 includes the test procedure to determine the adhesion of rubber to rigid metal substrates. On metal substrates a more formal version of the knife test is the tape test. The testing procedures include peel strength or tensile strength of the adhesion edge.

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. 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. For polymer rubber linings qualification of procedures may include adhesion testing. The vehicle engine mounts rubber coated metal components and rubber lined tanks and containers use the astm d429 standard.

The result is often critical to the acceptance or rejection of a coating process as the adhesion value quoted by. To read more about astm d413 astm d378 and the equipment req. Method e of astm d429 determines the adhesive strength of rubber tank lining to a tank wall using a 90 degree strip test. 1 1 these test methods cover procedures for testing the static adhesional strength of rubber to rigid materials in most cases metals.

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. Note before applying adhesive to the lining the rubber may require to be freshened by giving it a wipe with solvent. There is no known correlation to other adhesion test methods pull off tape etc. A standard method for the application and performance of this test is available in astm d6677.

Allow to dry until tacky on both the substrate and the rubber approximate 1 hour. Method a rubber part assembled between two parallel metal plates. Relevant adhesion test results obtained during the last two projects performed by the lining applicator may be referred to in. Once the test is complete you will want to record the force vs displacement.