The McSnapper is a tensile with impact testing machine designed specifically for polyolefin materials. It was developed to accurately test fusion joints. The McSnapper combines the tensile impact test ASTM D 1822 and high speed tensile test ASTM D 2289 to provide the most accurate test for fused joints by being critical to the fusion, but allowing the pipe to fail if the joint is good.

Using the Impact Resistance Test ASTM F 905 as a model, the McSnapper is capable of testing sidewall fusions. The machine can also be used in the development of new materials, quality assurance for existing materials, or in fusion compatibility to determine lot uniformity, strength and fuseability of pipe and fittings.