PROFI-CAR RADIATOR SEALER – Cooling System Leak Sealer 300ml

PROFI-CAR RADIATOR SEALER is a radiator and cooling-system sealing additive designed to seal small and difficult-to-locate leaks in vehicle cooling and heating systems. It is intended for situations such as hairline cracks in the radiator or cylinder head, leakage around water-pump sealing rings, porous areas in hoses or heat exchangers, and small damage caused by stone chips.

The product uses a combination of active ingredients that provides a reliable and long-lasting sealing effect. According to PROFI-CAR, the sealing material does not harden in water; it remains permanently flexible and can be flushed out again when required. This characteristic helps the product perform as a cooling-system sealant without forming a permanently hardened material inside the cooling circuit.

PROFI-CAR RADIATOR SEALER is suitable for water-cooled systems and radiators and is compatible with standard antifreeze and coolant fluids. The product information also states that its corrosion-protection properties help prevent problems affecting components such as heating valves and thermostats.

The additive can be used for sealing different types of leaks in cooling and heating systems, helping reduce coolant loss and seal minor seepage. PROFI-CAR also lists applications involving water-pump sealing rings and certain cylinder-head cracks, as well as preventive protection against coolant loss and corrosion.

For correct application, PROFI-CAR instructs the user to shake the product before use, check the coolant level, and add the product directly when the engine is warm with the heater valves open, or introduce it through the expansion tank. The coolant level should then be checked again.

PROFI-CAR RADIATOR SEALER is intended for minor leaks and seepage. It should not be considered a replacement for mechanical repair of major radiator, hose, water-pump, gasket or cylinder-head damage. The cooling system and vehicle manufacturer’s instructions should always be taken into account before use.

Recommendation for Use:

• For sealing small leaks and difficult-to-locate leaks in cooling systems
• For radiators and water-cooled systems
• For minor leaks around water-pump sealing rings
• For porous areas in hoses or heat exchangers
• For certain small/hairline cracks in radiators or cylinder heads
• For reducing coolant loss and minor seepage
• For preventive protection against coolant loss and corrosion
• Compatible with standard antifreeze and coolant fluids

Key Benefits:

• Seals small and difficult-to-find cooling-system leaks
• Reliable and long-lasting sealing effect
• Remains permanently flexible rather than hardening in water
• Can be flushed out when required
• Suitable for water-cooled radiators
• Compatible with standard antifreeze and coolant fluids
• Helps reduce coolant loss
• Suitable for minor seepage
• Provides corrosion-protection properties
• Can be used for preventive protection against coolant loss and corrosion

Product Specifications:

These specifications are based on the current official PROFI-CAR product page: www.profi-car.com

How to Use:

1. Shake the product well before use.
2. Check the coolant level before adding the product.
3. Warm up the engine.
4. Make sure the heater valves are open.
5. Add the product directly to the cooling system, or introduce it through the expansion tank.
6. Recheck the coolant level after adding the product.
7. Operate the vehicle/cooling system according to the vehicle manufacturer’s normal procedure and check for continued coolant leakage.

Important: The product is intended for sealing minor leaks. Major mechanical damage should be properly diagnosed and repaired rather than relying on a sealing additive.

FAQ:

What is PROFI-CAR RADIATOR SEALER?

It is an additive designed to seal small and difficult-to-locate leaks in vehicle cooling and heating systems.

What types of leaks can it seal?

PROFI-CAR mentions applications including hairline cracks in radiators or cylinder heads, water-pump sealing-ring leaks, porous hoses or heat exchangers, and minor damage such as stone-chip-related leaks.

Can it be used with antifreeze?

Yes. PROFI-CAR states that it is compatible with standard antifreeze and coolant fluids.

Does the product harden inside the cooling system?

According to the manufacturer, it does not harden in water and remains permanently flexible. It can also be flushed out when necessary.

Is it suitable for all radiators?

PROFI-CAR states that the product is suitable for all water coolers/radiators.

Can it repair a major radiator or cylinder-head failure?

It is designed for small leaks and minor seepage. Major mechanical damage should be repaired properly rather than relying on a radiator-sealing additive.

Should the engine be warm when adding the product?

Yes. The official application instructions specify adding the product when the engine is warm and the heater valves are open.

Can it be used preventively?

Yes. PROFI-CAR lists preventive protection against coolant loss and corrosion among the product’s applications.