Vinyl Coating
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Standard Coating Thickness and Verification
Normally .032 ±.015 excluding trailing / leading edges and drip areas of part. Since thickness is related directly to the temperature of the part when dipped, there will be some slight variation in coating thickness between parts made from widely different metal thicknesses.
Verification of clamping diameter is done before and after vinyl coating using a mandrel. In both inspections, the part must "hold" the appropriate mandrel in place and holes must be visually aligned.
Appearance
Decorative, improves appearance. Has dry and glossy surface. Black vinyl is standard. Other colors can be furnished on request.
Hardness
Normally 65 to 75 as measured on a Shore Durometer Type "A" on .25" thick sections properly cured. Hardness can be varied with special formulations.
Tensile Strength
Approximately 2,000 PSI as measured on a Model 1P-4 Scott tester on properly fused film .01-.02" thick. Elongation 300-350%. Both tensile and elongation can be increased or decreased as required by changing specifications.
Dielectric Strength
Approximately 200 volts per mil of coating thickness as measured on properly fused film .03" thick. Formulations that will provide dielectric strength to 700 volts per mil of coating thickness, and vinyls with high arc resistance, can be furnished with special formulations.
Resistance to Heat and Cold
Formulations used by KMC for catalog parts do not deteriorate at 180°F for as long as 2,000 hours, and 300°F for over two hours, and will remain flexible to -30°F. Will not support combustion, is self-extinguishing. Formulations that withstand higher temperatures are available.
Resistance to Chemical Action
Unusual resistance to abrasion and chemical action from water, detergents, gasoline, oil, grease, strong alkalies, acids, and many other substances. Not recommended for use with ketones, esters, chlorinated solvents, and aromatic solvents such as toluol and zylol.
