17% TO 82% BETTER RESISTANCE TO WATER-SPRAY-OFF THAN CONVENTIONAL SOAP BASE GREASES
WATER SPRAY OFF TEST (ASTM D-4049)
The test is used to evaluate the ability of a grease to adhere to a metal surface when subjected to an intense water spray.
In this test a stainless steel panel is coated with a 1/32 inch film of grease and weighed.
The panel is then sprayed with water at a temperature of 1000F and a pressure of 40 psi for 5 minutes. The spray apparatus is held 1 foot from the steel panel.
At the end of 5 minute test time the panel is oven dried for 1 hour at 1500F (660C).
After allowing to cool off to room temperature the steel panel is re-weighed to determine the weight and the percentage of the grease washed away.
