GLYCOL MC, a polyalkylene glycol ether is a high-cloud-point additive designed for medium-to-high salinity polyglycol systems. It can provide improved wellbore stability, lubricity, high-temperature filtration control, plus reduce dilution rates and bit balling. While polyglycols are most effective when used in conjunction with an inhibitive salt, such as KCl, in a non-dispersed polymer system, they can be used as additives in most water-base systems. GLYCOL MC is acceptable for most applications specifying low-toxicity additives.