What if ThermalWeld fails to repair a vehicle? Since failures occur in about 20% of the applications, Thermalweld has developed a policy that is both fair to the customer and the technician. The customer is charged nothing if ThermalWeld does not perform to the customer's satisfaction. If the treatment fails during the warranty period, the customer receives a free re-treatment. If re-treatment fails, then the vehicle head gasket is beyond ThermalWeld's capability to repair the head gasket, and the customer receives a 100% refund on the cost of the treatment.

Can ThermalWeld damage a Vehicle? Thermalweld is intended for use in vehicle cooling systems only. Vehicle cooling systems include the radiator, water pump, thermostat, radiator cap, and connecting hoses. ThermalWeld will not damage the water pump or clog the radiator.