Sealwel Coolant System Conditioner - Single Pack

SealWel Coolant System Conditioner – Single Pack

What It Does

SealWel is a cooling system conditioner that cleans, seals and protects in one treatment.

• First, it removes rust and scale from inside the cooling system.
• Then it begins sealing small cracks and seepage points from the inside out.
• The repair material forms a flexible, plastic-like seal that expands and contracts with engine temperature changes.
• A final non-oily lubricant helps reduce wear on water pumps, thermostats and heater valves.

How To Use

1. Allow the engine to cool completely.

2. Remove the radiator cap (do not open when hot).

3. If using cube form: Break the cube into smaller pieces before adding to the radiator.
   
   If using powder form: Add the recommended number of scoops directly into the radiator. 

4. Refit the radiator cap.

5. Start the engine and bring it up to normal operating temperature so the product can circulate through the system.

You may notice increased coolant flow at first — this is normal. The product cleans the system before sealing begins.

Recommended Dosage

• Small leaks: 1–2 cubes
• Larger leaks or minor head gasket issues: 2–3 cubes
• 6 or 8 cylinder engines: Add one extra cube to suit the larger cooling system capacity

One pack (cube) is sufficient for most standard passenger vehicles.

Why Choose SealWel?

• Safe for aluminium, alloy and all common cooling system metals
• No need to drain antifreeze
• Helps stop minor leaks and prevent new seepage
• Trusted by radiator shops and engine reconditioners for over 75 years

Ideal for minor radiator leaks, heater core seepage, small head gasket leaks and preventative maintenance in older cooling systems.