AQUA-QUENCH 251 is pale amber coloured fluid concentrate based upon polyalkylene glycol.It mixes readily with water to produce a solution, which is instantly ready for use.As AQUA-QUENCH 251 solutions are heated the organic polymer becomes insoluble in the water at temperatures above 74 °C.

When the solution is cooled the polymer goes back into solution and is fully miscible.It is this property known as"inverse solubility" which imparts the unique cooling mechanism to AQUA-QUENCH 251.

AQUA-QUENCH 251 complies with Aerospace Material Specification(AMS)  3025(C) as a Type 2.