Simple past tense and past participle of rubberize.(verb)
Coated or treated with rubber(adjective)
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Use "rubberized" in a sentence
"Some aviators use what is called rubberized silk, others prefer balloon cloth."
"The material used in the construction of the rudders and auxiliary planes is the same as that used in the main planes -- spruce for the framework and some kind of rubberized or varnished cloth for the covering."
"Contractors are required to use "rubberized" asphalt, made from recycled tires."