Method for stabilizing an engine coolant concentrate and preventing hard water salt formation upon dilution

摘要: Disclosed is a method of simultaneously stabilizing an engine coolant concentrate and preventing hard water salt formation upon dilution the with water. The comprises making stabilized by adding to at least one stabilizer selected from group consisting polyacrylate polymers formula (I): where R1 H; R4 terminating group; X formula(II): R2 R3 are each independently hydrogen, alkali earth metal or alkaline metal, sum m n provide number average equivalent weight less than 6500, molecular comprising 90 more wt % freezing point depressant then diluting final composition.