also could be coated with nylon polymer to enhance surface properties these properties include for example abrasion resistance barrier properties or the modification of the surface of a polymer such as polyester to make the surface more polar for a subsequent operations where the modified surface may be more amenable articles to which the instant coating solutions have been applied are also disclosed and claimed herein a coated article comprising a substrate of polyamides polyesters or mixtures thereof is first provided then a coating solution is applied thereto to form a precoated substrate the coating solution comprises at least 0 5 weight percent of high imino partially alkylated or non alkylated formaldehyde resins selected from the group consisting of melamine formaldehyde glycoluril formaledhyde benzoguanamine formaldehyde and mixtures thereof finally a polyamide with a solubility of at least 0 5 weight percent in select organic solvents is applied to the precoated substrate the invention will become better understood and appreciated upon having reference to the following examples the thread coating was conducted in a laboratory coating unit similar to the one described in the dupont brochure relating to elvamide u00ae october 1977 and the u201c nylon plastics handbook u201d both referenced earlier the drying and fusing sections are heated with hot nitrogen passed through electrical tube heaters provided with controllers to allow independent temperature control of the two sections in a typical coating experiment the thread is passed between cheesecloth saturated with the coating solution by continuously dripping the coating solution onto the cloth from a dropping funnel the residence time of the thread in the drying section is six.