Flexible coating composition and method of applying same

B - Operations – Transporting – 32 – B

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117/142

B32B 7/08 (2006.01) B05D 3/02 (2006.01) B05D 7/14 (2006.01) B05D 7/16 (2006.01)

Patent

CA 1219181

ABSTRACT OF THE DISCLOSURE A method of protecting surfaces of structural items from exposure to the elements, which includes forming first and second protective films upon the surface to be protected. The primary coating is an adherent-coherent film having a formulation including: 1.) Methylmethacrylate copolymer film formers 2.) A solvent system of toluene and 2-methoxyethanol 3.) Fillers, such as SiO2 4.) Miscellaneous solvents which is applied as a working film-forming solution and permitted to air dry. Thereafter, a secondary or top coating of an adherent-coherent film is applied over the surface of the primary coating, with the top coat or secondary coating having a formulation including: 1.) Thermoplastic Rubber 2.) Fillers, such as SiO2 and CaCO3 3.) Tackifier 4.) Heat and Light Stabilizers 5.) Miscellaneous Solvents and applied in a working solution and permitted to air dry. The resulting layers provide a synergistic effect when sequentially applied, and result in an air-tight film preventing the occurrence of either corrosion or rust, particularly when applied over metal surfaces.

454872

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