Thermo self adhesive heating pads thermo technologies therm230v7w the thermo therm230v 7w heating foil is made from flame retardant polyester foil with a silicon protective paper and one self adhesive face it is suitable for application to all surfaces and is cut and rupture resistant this quality product protects surfaces equipment housings circuits even various fluids against freezing temperatures safely it is not thermostatically controlled and should not be operated continuously wi