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Thermostat Wax

Thermostat waxes, also known as expansion waxes, are specially designed waxes used in thermostatic control devices for a variety of industries, including automotive, marine and aerospace engines, and building heating and cooling systems.

How Thermostat Wax Works

Thermostats contain a pellet of wax which is designed to melt at a particular temperature or over a certain temperature range. When the wax melts, the volume expansion in the system works against and finally overcomes the loaded seal, effectively introducing coolant into the system and regulating the temperature.

Wax elements are the core of thermostats and thermostat inserts and result in reliable, maintenance-free, durable components for a wide range of applications.

Carmel thermostat waxes can be tailored to client specifications and formulated to regulate wax elements within a temperature range spanning from -20 °C to +130 °C.