NOVELTY - Contact medium (11) comprises a substrate, and a water insoluble thermoplastic composition in contact with the substrate, where the water insoluble thermoplastic composition comprises 1-40 wt.% of PVC, 1-25 wt.% polyacrylonitrile, 1-55 wt.% of poly(methyl acrylate), 1-25 wt.% of poly(amide-imide), and 2-30 wt.% of poly(butyl acrylate).    USE - The contact medium is useful: on a substrate such as a polymeric substrate (all claimed); and in stacked arrays or formed into drip pads, sprayed pads, packed cells, rotating wheels, or other shapes, in evaporative cooling equipment and in operations such as heating, cooling and evaporative distillation, which involve heat transfer, cooling water scale inhibition, producing water-absorbing polymer particles, water management in fuel cells, physical barriers to minimize evaporative heat losses, cooling hollow fiber cross-flow separators, device adapted to cool a gas or liquid flowing through a conduit, compositions and methods for forming shaped articles, and filaments and films shaped from the compositions, system for conditioning the airflow entering a turbomachine, removing polyvalent metal ions from the makeup source water, reverse osmosis, reverse osmosis, electrochemical removal, chemical precipitation, or evaporation/distillation, gastric retentive extended-release dosage forms comprising combinations of a non-opioid analgesic and an opioid analgesic, bandages, fabric, apparel, garment, clothing, shoes, underbody thermal blanket, roofing system and other similar devices.    ADVANTAGE - The economical contact medium has high water resistance and strength, good wetting properties, improved longevity and increased durability, and resists the growth of mold, algae, mildew and other microbes and chemical breakdown in the presence of acidic or alkaline conditions.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a polymeric substrate comprising the substrate comprising at least a top layer and a bottom layer in contact at one or more regions, and a thermoplastic compound that contacts the substrate, where the thermoplastic compound comprises 2-10 wt.% of polyacrylonitrile, 5-20 wt.% of poly(methyl acrylate), 2-20 wt.% of poly(amide-imide), 5-25 wt.% of poly(butyl acrylate), 30-55 wt.% of polystyrene and 20-40 wt.% of polybutadiene.    DESCRIPTION OF DRAWING(S) - The figure shows a perspective view of a structure of the contact media.    Contact medium (11)    Individual sheets (13)    Channels. (15)