... satisfactory compatibility with fireproof hydraulic fluids, ketones, hot and cold water, and alkalis, and unsatisfactory compatibility with most oils, ... insulation, vibrators, O-rings, solar panel heat collectors, UV protection (for tubular motors in shutters) and speaker cone ... Other uses in vehicles include cooling system circuit hoses where water pumps, thermostats, EGR valves, EGR coolers, heaters, ...