Rislone Liquid Aluminium Stop Leak – Seals Radiator Leaks, 500ml

Use When You Notice…

• Temperature gauge creeping high in traffic or summer heat: Slow leaks reduce coolant volume, causing overheating — this product seals the source before damage occurs.
• Coolant level dropping with no visible puddle under the car: Internal seeps in the heater core or gasket joints lose coolant silently — liquid aluminium stop leak targets these hidden points.
• White residue or scale inside the reservoir: Hard Indian tap water leaves mineral deposits that restrict flow — the formula's scale dissolvers break these down.
• Radiator showing minor weeping or staining around joints: Early-stage radiator joint leaks respond well to a liquid aluminum radiator stop leak applied promptly.
• Cooling system topped up with untreated tap water over time: Mineral buildup accelerates corrosion — this product addresses both the leak and the underlying rust damage.

Key Benefits

• Fast Leak Sealing: Works on contact with leak points — ideal for sudden radiator failures on Indian highways far from the nearest workshop.
• Overheating Protection: Restores full coolant volume and flow, directly reducing the risk of engine overheating in Delhi, Mumbai, or Nagpur summer traffic jams.
• Scale and Rust Removal: Corrosion inhibitors and scale dissolvers tackle the mineral deposits that Indian hard water leaves inside cooling passages.
• Aluminium-Safe Chemistry: Specifically engineered for modern aluminium radiators and engine water jackets — no erosion, no clogging.
• Universal Coolant Compatibility: Safe with green, pink, blue, and orange coolant formulations — no draining required before use.

The Technology Inside

Rislone's liquid aluminium stop leak uses a blend of corrosion inhibitors, controlled-particle sealing agents, and wetting compounds that activate at normal engine operating temperature. The sealing particles are sized specifically to block micro-fissures and porous joints in aluminium, copper, and plastic radiator assemblies without obstructing the narrow coolant passages found in modern BS6-era engines. Scale dissolvers break down calcium and magnesium deposits — the direct result of using mineral-rich Indian tap water — restoring optimal coolant circulation. The corrosion inhibitor package then forms a protective film on exposed metal surfaces, preventing future oxidation inside the cooling circuit. This multi-action approach is why it outperforms single-ingredient stop leak products on the market.

Dosage & Coverage

One 500ml bottle treats a standard passenger vehicle cooling system of 4–7 litres capacity — covering most Maruti Suzuki, Hyundai, Tata, Honda, and Mahindra models. Add the full bottle directly to the radiator or coolant reservoir on a completely cool engine, without exceeding the maximum level mark. For best results, allow the product to work progressively over one to two full heat cycles before evaluating results; a second application is rarely needed for minor leaks.

Compatibility

Safe to use with

• All coolant colours — green, pink, blue, and orange OAT formulations
• Aluminium, copper, brass, and plastic radiators and engine water jackets
• Petrol, diesel, and hybrid vehicles including BS6-compliant engines
• Compatible with Maruti Suzuki, Hyundai, Tata, Honda, and Mahindra cooling systems

Not suitable for

• Does not fix overheating caused by a failed thermostat or water pump — these require mechanical repair
• Not a permanent solution for large radiator cracks or physically damaged hoses
• Head gasket failures with combustion gas ingress require professional workshop repair

Why It Matters in India

Radiator and cooling system failures are among the top causes of roadside breakdowns in India, particularly across Rajasthan, Uttar Pradesh, Maharashtra, and Gujarat during the April–June heat peak, where ambient temperatures regularly touch 48°C. Engines idling in Delhi or Bengaluru stop-and-go traffic for 20–30 minutes at a stretch place enormous thermal stress on cooling system seals. Add to this the widespread habit of topping up radiators with hard tap water, and minor seeps become serious overheating events alarmingly quickly. Addressing small leaks early with a proven liquid aluminum radiator stop leak is far cheaper than an engine rebuild on the roadside.

How To Use

1. Ensure the engine is completely cool before removing the radiator or reservoir cap.
2. Shake the bottle well and pour the full 500ml into the radiator or coolant reservoir.
3. Replace the cap, start the engine, and run at normal operating temperature for 15–20 minutes.
4. Check coolant level and top up with distilled water if required; monitor over the next two heat cycles.

Safety Note: Never open a hot radiator cap — scalding coolant under pressure can cause serious burns. Always allow the engine to cool fully before servicing the cooling system.

Frequently Asked Questions

Is this safe for my BS6 Maruti or Hyundai engine?

Yes — Rislone liquid aluminium stop leak is formulated to be safe with modern aluminium engine components and BS6-era cooling systems. It will not void your vehicle's cooling system warranty when used as directed and is compatible with factory-fill coolants used by Maruti Suzuki, Hyundai, Tata, Honda, and Mahindra.

Can I use this with any coolant colour already in my system?

Absolutely. This product is compatible with all standard coolant formulations — green, blue, pink, and orange. There is no need to drain and flush the system before adding it, making it genuinely convenient for roadside use.

Will hard Indian tap water cause problems after I use this product?

The product's scale dissolvers will address existing mineral deposits, but always top up or refill your cooling system with distilled or demineralised water going forward. Continuing to use hard tap water will undo the benefits over time and accelerate corrosion inside the radiator.

How quickly will the leak stop?

Most minor radiator seeps and heater core leaks seal within one to two heat cycles — typically within 30–60 minutes of normal driving. If the leak persists after two heat cycles, the damage may be mechanical and requires a workshop inspection.

Is Cash on Delivery available and how fast will it arrive?

Yes — naredi.in offers Cash on Delivery across India with free shipping on all orders. Most metro cities receive delivery within 2–4 business days; Tier-2 and Tier-3 cities within 4–7 business days.

Complete Your Kit

For a complete cooling system service, pair this stop leak with these Rislone companions available at naredi.in:

• Rislone Radiator 10 Minute Flush (41211): Flush out old scale, rust sludge, and mineral deposits before sealing — ensures the stop leak bonds to clean metal for a longer-lasting result.
• Rislone Hy-Per Cool Super Coolant (41300): A wetting agent that lowers coolant surface tension, improving heat transfer efficiency — especially valuable during Indian summer peak when engine temperatures are at their highest.

Warranty & Support in India

• Warranty: 1-year warranty against manufacturing defects
• Customer Support: Monday–Saturday, 9 AM–6 PM IST. WhatsApp / Phone: +91 93112 11157 · hello@naredi.in
• Returns: 14-day return and exchange policy, COD returns accepted
• Delivery: Free delivery across India, Cash on Delivery available