Abstract: An automated laboratory apparatus for dynamically testing the durability of a coating is provided. The apparatus includes an actuator that drives at least one test unit. Each test unit includes a pressure chamber assembly having a main body and a clamping member. The main body includes a monitoring window, an opening, and an inner chamber wall defining a pressure chamber within the main body. The clamping member includes a central opening. The clamping member and main body are adapted to sandwich a substrate including the coating therebetween to close the pressure chamber. A driven member extends through the central opening in the clamping member and is contactable with the substrate. The actuator drives one or both of an oscillating linear and an oscillating rocking motion of the driven member. A method of testing the durability of a tire coated with a self-sealing sealant for leak-proof performance is also provided.

Abstract: A slider for opening and closing first and second longitudinally elongate closure members including a body with at least one sidewall that defines a channel, side member articulably attached to the sidewall, wherein the side member is laterally displaceable about a hinge. Additionally, an engagement member is attached to the side member. The engagement member extends across at least one of the closure members and operationally engages at least one of the closure members.