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8,90 €

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UNIL OPAL radiator leak-stop - bottle - 300ml

UNIL OPAL 300ml radiator stop leak is a preventive and curative treatment designed to prevent and seal leaks to ensure a perfect cooling system seal . It is compatible with all types of coolant (mineral or organic).

Its effective formu...

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ref : UD30405

In stock

Shipped by Mecatechnic on: Monday, December 8, 2025

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Home delivery : 42.00€

Collect at store Wambrechies (France) : Free

Description Customer review

Description Product

Details about : UNIL OPAL radiator leak-stop - bottle - 300ml


UNIL OPAL 300ml radiator stop leak is a preventive and curative treatment designed to prevent and seal leaks to ensure a perfect cooling system seal . It is compatible with all types of coolant (mineral or organic).

Its effective formula, based onclogging and sequesteringagents and stabilized in demineralized water, attacks and micro-leaks for long-lasting action (except major perforations).

Dosage: 1 bottle of 300ml treats circuits containing up to 6L of coolant.

Advantages :
- Easy to use.
- Restores radiator and gasket tightness.
- Prevents engine overheating.
- Extends radiator life.
- Long-lasting action.

Directions for use:
- With engine cold and switched off, set heater to warm.
- Shake bottle well.
- Empty the bottle into the radiator or expansion tank (depending on access).
- Run the engine at idle speed until it reaches normal operating temperature.
- The cooling circuit must be clean and free of scale: if necessary, clean it first.

Unil Opal is a French manufacturer offering a wide range of lubricants for all your applications. Its presence in the military sector is a real guarantee of quality.

Please observe our safety precautions.



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JM
José M
25/06/2024 - France (except Dom-Tom-Corsica)

To plug a micro coolant leak on my scooter.