Tecflow Radiator Sealer is a fast-acting stop-leak for small leaks and hairline cracks in the cooling system. Compatible with all coolants, safe for seals and metals, and helps protect against corrosion. One bottle treats up to 12 litres.
Got a small leak in your cooling system? That’s the kind of problem you want solved before it turns into overheating, downtime, or a costly repair. Tecflow Radiator Sealer is a reliable stop-leak designed to seal small leaks and hairline cracks in the cooling system quickly and effectively, without putting unnecessary strain on the system.
It not only helps stop leaks, but also provides corrosion protection, reducing the risk of rust deposits. This helps key components such as the water pump and the heater circuit keep working smoothly, without causing blockages.
Why choose Tecflow Radiator Sealer?
- Seals hairline cracks and small leaks fast and durably
- Helps prevent corrosion and rust in the cooling system
- Compatible with all common antifreeze and coolant types
- Safe for seals and metals (won’t damage gaskets or components)
- Supports water pump and heater circulation
- One bottle treats up to 12 litres of coolant
- Long-lasting protection, up to around 1 year
Application and use
Tecflow Radiator Sealer can be added directly to your existing coolant. Because it’s compatible with most coolants, it’s ideal for quick and practical use. For best results, annual use is recommended as part of regular maintenance.
Suitable for
- Cooling systems with small leaks or hairline cracks
- Preventive maintenance to help reduce corrosion and rust build-up
- Most vehicles with up to 12 litres coolant capacity
