1 Scope
This document specifies a method for the determination of the static vulcanized adhesion
strength of rubber compounds to rigid materials. The test piece is composed of two
conical ends of the rigid material, joined by a cylinder of rubber.
The adhesion is obtained by a bonding system which can include not only the rigid
material and the rubber compound, but other elements such as thin alloy coatings or
chemical treatments of rigid parts and either a single cement or both primer and cover
cements. The bonding system for preparing the test pieces should be adequately specified
by the user, but provision is made in this document for the evaluation of different
types of failure related to a complex bonding system.
The method is designed primarily for test pieces prepared in the laboratory under
standard conditions in order to provide data for development and control of bonding
systems and their components, such as cements or special rubber compounds, and of
methods of manufacture. While intended to be applied where the rubber is bonded to
rigid supporting pieces, it might not cover such cases where the support, although
of high-modulus material, has a low rigidity due to small transverse dimensions, as
in the case of rubber bonded to metal wires, cords or thin sheets.