Nulon Radiator & Engine Block Stop Leak 500ml (Pickup Only)

Nulon Radiator & Engine Block Stop Leak combines DuPont™ Kevlar fibre with liquid resin to deliver a powerful, long-lasting repair solution. Designed to permanently seal leaks in radiators, inlet manifolds and engine blocks - including cracks, leaking welch plugs and failing gaskets - all without the need for expensive mechanical work. Its advanced microfibre technology actively targets small leaks and cracks that lead to coolant loss, pressure drops and overheating.

DuPont™ Kevlar fibres work by meshing together to block the leak or crack, which is then locked in place with a hardened liquid glass resin for a permanent, watertight result. Suitable for use in cars, trucks, vans, utes and light commercial vehicles, Nulon Radiator & Engine Block Stop Leak is safe for all plastic, aluminium and metal (copper/steel) radiators, heater cores, gaskets and welch plugs.

Compatible to mix with all glycol and water based coolants

Benefits

• Seals radiator and inlet manifold leaks and cracks, welch plugs and leaking gaskets and pipe leaks fast
• Contains DuPont™ Kevlar® fibre and liquid glass resin for the ultimate permanent water tight seal
• Stops leaks from small pinholes (up to 0.8mm diameter) and small cracks (up to 0.8mm width) in any cooling system
• Saves costly mechanical repairs Maintains cooling system pressure and temperature to prevent overheating
• Safe to use with all types of glycol anti-freeze/anti-boil coolants and water based corrosion inhibitors