04 Oct 2023 --- Dow has launched two ecological ionomers grades that use renewable and circular feedstocks. Surlyn CIR is an ionomer produced from mixed plastic waste, while Surlyn REN is an ionomer made from bio-waste from other industries, such as used cooking oil.Dow asserts that these two grades are significant for the cosmetic packaging and plastics industries. The new Surlyn grades will enable beauty brands and manufacturers to create sustainable and high-quality cosmetic packaging due to the properties that give the unique look, feel and performance for which the Surlyn material is known.