Investigations into the influence of titanium dioxide pigments on the cracking of air‐drying exterior alkyd paints

A commonly accepted practice for comparative evaluations of the exterior durability properties of titanium dioxide pigment grades is to prepare alkyd paints on each pigment grade, then apply the paints on test panels and send the properly dried panels to a Floride exposure for 12 months. During these 12 months the condition of the panels is examined monthly and gloss, chalking, cracking and other eventual changes are recorded and reported.