This test method covers a laboratory test for estimating (after application of traffic or pavement-marking paint) the drying period required for no-pick-up by the tire of an automobile.

The apparatus consists of a cylinder with two 3/8" cross section diameter “O” rings made of a synthetic rubber meeting the requirements of HK 715 Specification D2000. The rings will retain their flexibility indefinitely. Total weight of the tester including “O” rings is 11 pounds 14 ounces (± 1 oz)(5386 g, ±28 g), which is equivalent to tire pressure of 100 pounds per square inch on the pavement. The rolling ramp furnished is made of aluminum with a 1:6 slope measuring 6" long, 3-1/2" wide and 1" high at the upper slotted end.

About a glass plate of the type called for in the specification against the ramp. At regular intervals remove the wheel from ramp and free roll it down the incline over the paint film. Position the panel for every run so that a clean surface comes in contact with the rings. Clean wheel with solvent at intervals. Note point for no pick-up time. See ASTM D711 for details.

The end to end spliced rings are easily replaced by simply rolling along the cylinder until positioned in the grooves.