The views of Dr. Michael R. Van De Mark of University of Missouri--Rolla on nonbake coatings are discussed. The factors that indirectly affect test results in nonbake coatings include, coating thickness, time, temperature, air movement and humidity. These factors often affect adhesion, hardness, abrasion, corrosion, flex, impact, elongation and tensile strength. Control over all the variables is necessary to produce reliable test data.