The addition of at least 20 weight percent of at least one member of a specified class of monobenzoates to at least one member of a specified class of dibenzoates that freeze at 28.degree. C. or above results in a mixture that is both a liquid at this temperature and an unexpectedly effective plasticizer for many organic polymers. The plasticized polymer compositions are useful in various end use applications including adhesives and caulks.