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