The Lubrizol Corp. has introduced Permax 805 vinylidene chloride emulsion, an APE-fee, low VOC, small particle size vinylidene chloride acrylate copolymer emulsion that exhibits extremely low moisture vapor permeability and excellent oxygen barrier properties, according to the firm. Permax 805 emulsion is recommended for a variety of coatings in OEM and industrial metal applications, such as maintenance primers, underhood and underbody coatings, rust converting products and barrier coatings. Recommended at a film thickness of 3-4 mils dry, coatings based on this emulsion provide both superior corrosion and humidity resistance, as well as adhering well to a variety of metal substrates, according to the company.