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Visbella® radiator stop leak is a non-toxic, high-performance compound engineered to fix leaks in automotive, commercial, and agricultural cooling systems. This innovative cooling system leak sealer quickly mixes with antifreeze, flowing through radiators, heater cores, and freeze plugs to form a permanent seal—without clogging hoses, water pumps, or delicate components. Crafted with a safe, biodegradable formula, it’s compatible with all types of antifreeze (ethylene glycol, propylene glycol) and protects against rust, corrosion, and wear.

The non-toxic stop leak is free of harmful chemicals, making it safe for humans, pets, and the environment. It’s biodegradable and won’t contaminate soil or water sources.
Designed for rapid leak repair, the powder mixes instantly with coolant, flowing to leak points and forming a permanent seal within 15 minutes of engine operation. No waiting for hours—get back to use quickly.
Compatible with all types of antifreeze and coolants, the antifreeze-compatible sealer won’t react with existing fluids or damage cooling system components. It’s safe for both old and new vehicles.
The ultra-fine powder particles seal only leaks, not coolant passages. This clog-free stop leak ensures optimal coolant flow, preventing overheating and damage to water pumps or radiators.
Beyond sealing leaks, the formula acts as a rust inhibitor and water pump lubricant, reducing friction and wear on internal components. This extends the lifespan of radiators, water pumps, and hoses.
Works with all vehicles—cars, trucks, vans, buses, tractors, and agricultural machinery. The multi-vehicle stop leak adapts to different cooling system sizes and configurations.
Forms a chemical bond with metal and plastic components, creating a permanent leak seal that withstands temperature changes, pressure, and vibration. No need for repeated applications.
Ideal for car radiator leaks, heater core issues, and freeze plug leaks in sedans, SUVs, and pickup trucks. Fixes common cooling system problems without expensive repairs.
Suitable for truck cooling systems, bus radiators, and van heater cores. Keeps commercial fleets on the road, reducing downtime and maintenance costs.
Used in construction machinery (excavators, bulldozers) cooling systems. Seals leaks caused by heavy use and harsh job site environments.
Safe for classic car radiators and older cooling systems. Provides gentle, effective leak repair without damaging delicate or rare components.
Visbella® radiator stop leak is a non-toxic, high-performance compound engineered to fix leaks in automotive, commercial, and agricultural cooling systems. This innovative cooling system leak sealer quickly mixes with antifreeze, flowing through radiators, heater cores, and freeze plugs to form a permanent seal—without clogging hoses, water pumps, or delicate components. Crafted with a safe, biodegradable formula, it’s compatible with all types of antifreeze (ethylene glycol, propylene glycol) and protects against rust, corrosion, and wear.

The non-toxic stop leak is free of harmful chemicals, making it safe for humans, pets, and the environment. It’s biodegradable and won’t contaminate soil or water sources.
Designed for rapid leak repair, the powder mixes instantly with coolant, flowing to leak points and forming a permanent seal within 15 minutes of engine operation. No waiting for hours—get back to use quickly.
Compatible with all types of antifreeze and coolants, the antifreeze-compatible sealer won’t react with existing fluids or damage cooling system components. It’s safe for both old and new vehicles.
The ultra-fine powder particles seal only leaks, not coolant passages. This clog-free stop leak ensures optimal coolant flow, preventing overheating and damage to water pumps or radiators.
Beyond sealing leaks, the formula acts as a rust inhibitor and water pump lubricant, reducing friction and wear on internal components. This extends the lifespan of radiators, water pumps, and hoses.
Works with all vehicles—cars, trucks, vans, buses, tractors, and agricultural machinery. The multi-vehicle stop leak adapts to different cooling system sizes and configurations.
Forms a chemical bond with metal and plastic components, creating a permanent leak seal that withstands temperature changes, pressure, and vibration. No need for repeated applications.
Ideal for car radiator leaks, heater core issues, and freeze plug leaks in sedans, SUVs, and pickup trucks. Fixes common cooling system problems without expensive repairs.
Suitable for truck cooling systems, bus radiators, and van heater cores. Keeps commercial fleets on the road, reducing downtime and maintenance costs.
Used in construction machinery (excavators, bulldozers) cooling systems. Seals leaks caused by heavy use and harsh job site environments.
Safe for classic car radiators and older cooling systems. Provides gentle, effective leak repair without damaging delicate or rare components.
Whether you’re dealing with small pinholes or moderate leaks in cars, trucks, buses, or tractors, this fast-acting leak repair product delivers immediate results, getting you back on the road or field in minutes. It acts as both a rust inhibitor and water pump lubricant, extending the life of your cooling system while providing reliable, long-term leak protection.
Physical state | Solid powder |
Colour | Grayish yellow |
Particle characteristics | Powder size: 80-100 mesh |
Density(20℃) | 0.52±0.05 g/cm3 |
Whether you’re dealing with small pinholes or moderate leaks in cars, trucks, buses, or tractors, this fast-acting leak repair product delivers immediate results, getting you back on the road or field in minutes. It acts as both a rust inhibitor and water pump lubricant, extending the life of your cooling system while providing reliable, long-term leak protection.
Physical state | Solid powder |
Colour | Grayish yellow |
Particle characteristics | Powder size: 80-100 mesh |
Density(20℃) | 0.52±0.05 g/cm3 |
