Check the listing for details. Thermocure Coolant System Rust Remover Remove Rust Scale Car Cooling System 32oz. Condition: New. Listed at 29.09 USD. CRC Thermocure Coolant System Rust Remover, 32 Oz, Rust Remover for Vehicle Cooling Systems, Removes Rust Scale and Deposits Description: EVAPO-RUST RUST REMOVER: Evapo-Rust effortlessly removes rust from automotive parts, hardware, tools, cookware, and antiques without any scrubbing or sanding.THERMOCURE FORMULA: Thermocure is made of a non-toxic and water-based solution that is easy-to-use on automotive cooling systems. It is non-corrosive and non-flammable.EASY APPLICATION: This non-toxic, non-flammable solution removes rust that causes overheating in three easy steps. Treats cooling systems up to 3 gallons.USE: The cooling system cleaner removes rust from the cooling system in three easy steps that include draining the coolant, adding the solution and topping off with water, let the solution stay in the car for 3-4 hours up to several days. Drain the cooling system and flush 3-4 times with water. Refill with manufacturer's recommended coolant.SPECIFICATIONS: Our Thermocure cleaner is available in a 32 oz bottle.