Recently, the advantages of thick film coatings and linings have led to uses in many different applications in the industrial, commercial and automotive markets. Although these polyurethane and polyurea materials have excellent physical properties, they are based on aromatic chemistry which is susceptible to damage from UV radiation and is not light stable. These aromatic-based materials discolor with sunshine and UV exposure. This presentation discusses a new type of thick film coating that utilizes aliphatic polyurethane chemistry. This material is relatively unaffected by UV radiation and is thus light stable. At the same time, they have been specially formulated to have excellent physical properties and wear performance. They exhibit excellent abrasion resistance, toughness and slip resistance while providing exceptional protection from detrimental effects of UV light. This paper presents the physical properties and performance characteristics of this new class of material. Weathering data comparing standard aromatic products versus the new aliphatic lining is provided. Potential applications for such protective linings are also discussed.
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