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cold rubber

noun
  1. a synthetic rubber made at a relatively low temperature (about 40°F or 4°C) and having greater strength and durability than that made at the usual temperature (about 120°F or 49°C): used chiefly for retreading tires.
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Origin of cold rubber

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for cold rubber

cold rubber

noun
  1. synthetic rubber made at low temperatures (about 5°C). It is stronger than that made at higher temperatures and is used for car tyres
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012