- Powerful Cooling System Stop Leak: Highly concentrated formula designed to provide exceptional stop-leak performance for automotive cooling systems.
- Helps Permanently Seal Engine Leaks: Designed to seal leaks in engine blocks and cylinder heads, helping address difficult cooling-system leaks.
- Multi-Point Leak Sealing: Helps seal leaks involving radiators, heater cores, freeze plugs, water pumps, thermostats and other cooling-system components.
- Compatible with Multiple Engine Materials: Suitable for engines constructed from cast iron, steel and aluminum.
- Suitable for Multiple Radiator Types: Designed for copper, brass, aluminum and plastic radiators, providing broad application coverage.
- Concentrated Formula: Uses multiple proven stop-leak components together with detergents for effective cooling-system treatment.
- Professional & DIY Applications: Suitable for automotive repair shops, mechanics and vehicle owners dealing with cooling-system leaks.
- Important Compatibility Note: Product instructions state specific antifreeze compatibility requirements. Read and follow the container instructions carefully before use.
Help tackle difficult automotive cooling-system leaks with LION Mega-Seal Radiator & Engine Block Seal, a highly concentrated stop-leak treatment formulated for demanding engine and radiator applications.
LION Mega-Seal combines a variety of proven stop-leak components with detergents to provide strong sealing performance throughout compatible automotive cooling systems. It is designed to help permanently seal leaks in engine blocks and cylinder heads, while also addressing leaks in other important cooling-system components.
Its broad application range includes radiators, heater cores, freeze plugs, water pumps and thermostats, making Mega-Seal a versatile solution when a cooling-system leak is difficult to isolate or occurs in multiple potential areas.
Mega-Seal is suitable for engines manufactured from cast iron, steel and aluminum, as well as radiators constructed from copper, brass, aluminum and plastic. This broad material compatibility makes it useful across many automotive cooling-system configurations.
For customers searching for a radiator stop leak, engine block sealer, cooling system leak sealer, head leak sealant, heater core stop leak or freeze plug leak treatment, LION Mega-Seal provides a concentrated solution designed specifically for automotive cooling-system sealing.
Important: Follow the directions and compatibility information on the actual product container before use, particularly regarding antifreeze/coolant compatibility.
