Patent ID: 8820155

Claim:
A method for conducting a peel test of a polymer coated metallic sample comprising the steps of: making a peel test specimen having a polymer joined to a substrate wherein an attached portion of said polymer is joined to said substrate and a free portion of said polymer is not attached to said substrate, a bonding region being present between said polymer and said substrate; providing an environmental test chamber capable of controlling an environment for testing; supporting said peel test specimen horizontally in the environment for testing in such a manner that said polymer is allowed to peel vertically downward from said substrate; joining a weight to said free portion of said polymer subjecting the bonding region to vertically downward tension at a region subject to the environment for testing; recording a start time when said weight is joined to said polymer; periodically measuring said attached portion of said polymer and said elapsed time from said recorded start time; and calculating a peel rate as a ratio of distance to time from said attached portion measurement and said elapsed time.