ABSTRACT
While the joint durability for structures which will primarily experience only interior weathering service may be adequate when employing vapor-degreased-only aluminum adherends, confirmation still is required by undertaking some testing of the final joint under the most severe conditions that might exist in the anticipated service. This often will take too long to adequately demonstrate, which is why laboratory weathering conditions such as condensing humidity at 125 °F (52 oq has been employed by the author. The extrapolation of durability test results using such an accelerated weathering condition is still very difficult (if even possible) to translate to some measure of time for a practical warranty for a bonded product. A good performance in such an accelerated laboratory weathering test environment does provide a degree of confidence in the product, however, that cannot be obtained by any theoretical assessment.
