Malkyd No.6 Maleic resin Arakawa Chemical Maleic Resins Inks INKS MALKYD No.6 is maleic resin in flakes form. It shows very light color, good weather resistance, compatibility and color retention. It is used in oil varnish, Clear lacquer enamel. Maleic resin. Shows very light color, good weather resistance, compatibility and color retention. Used in oil varnish, Clear lacquer enamel.