Pressure sensitive tape is applied and removed over cuts made in the coating.
Rubber lining adhesion test.
Method b 90 stripping test rubber part assembled to one metal plate.
The astm d429 includes the test procedure to determine the adhesion of rubber to rigid metal substrates.
This test peels rubber conveyor belting and measures the average peel force over a 5 section.
If a procedure that includes adhesion testing is used the quality control adhesion testing may be considered optional.
On metal substrates a more formal version of the knife test is the tape test.
Method e of astm d429 determines the adhesive strength of rubber tank lining to a tank wall using a 90 degree strip test.
Either the rubber material fails internally or at the adhesion surface to the metal.
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.
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.
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.
For polymer rubber linings qualification of procedures may include adhesion testing.
There are many conditions that can affect the adhesion of rubber to various substrates such as metal and fabrics.
Relevant adhesion test results obtained during the last two projects performed by the lining applicator may be referred to in.
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.
The standard is divided into.
Allow to dry until tacky on both the substrate and the rubber approximate 1 hour.
To read more about astm d413 astm d378 and the equipment req.
Method a rubber part assembled between two parallel metal plates.
A standard method for the application and performance of this test is available in astm d6677.
The result is often critical to the acceptance or rejection of a coating process as the adhesion value quoted by.
The testing procedures include peel strength or tensile strength of the adhesion edge.
There is no known correlation to other adhesion test methods pull off tape etc.
Once the test is complete you will want to record the force vs displacement.
