Rislone Liquid Aluminium Stop Leak

Use When You Notice…

• Temperature gauge climbing in traffic or summer heat: Slow leaks reduce coolant volume, cutting your engine's ability to shed heat — this liquid stop leak seals the source before serious damage sets in.
• Coolant level dropping with no visible puddle under the car: Internal or micro-seep leaks are often invisible — the sealing particles in this product find and plug them from inside the circuit.
• White residue or crusty deposits around hose joints or the radiator neck: A tell-tale sign of mineral scale from Indian hard water — the formula's dissolving agents break down and flush these deposits.
• Cooling system topped up repeatedly with untreated tap water: Hard water accelerates scale and rust buildup inside passages — treat the system now to prevent a blocked radiator later.
• Buying a used car with unknown cooling system history: A precautionary dose restores protection and seals any hairline leaks left by the previous owner.

Key Benefits

• Fast Leak Sealing: Works on contact with air and coolant at leak points — ideal for sudden breakdowns on Indian highways far from workshops.
• Overheating Protection: Maintains coolant volume and flow so your engine survives 20–30 minute traffic jams in Delhi, Mumbai, and Bengaluru without temperature spikes.
• Hard Water Scale Removal: Dissolves mineral deposits left by Indian tap water that narrow coolant passages and reduce heat exchange efficiency.
• Corrosion Inhibition: Lays a protective film on aluminium radiator fins and engine water jackets, extending component life in coastal humidity and monsoon conditions.
• Non-Clogging Formula: Safe for water pumps, thermostats, and narrow aluminium radiator passages — no blockage risk after treatment.

The Technology Inside

Rislone Liquid Aluminium Stop Leak uses a blend of platelet-shaped sealing particles suspended in a carrier fluid, sized specifically to lodge in micro-fractures and hairline cracks without blocking full-flow coolant passages. Corrosion inhibitors form a passive oxide-protective layer on aluminium and copper surfaces — the two metals most common in modern BS6-compliant Indian engine cooling systems. Scale-dissolving surfactants attack calcium and magnesium carbonate deposits — the exact minerals present in hard water from north and central Indian municipal supplies. The formula is pH-balanced to remain compatible with OAT, HOAT, and IAT coolant chemistries, meaning it works safely whether your Maruti Alto or Tata Nexon left the factory with green or orange coolant. No petroleum distillates are used, so there is zero risk of degrading rubber hoses or silicone seals.

Dosage & Coverage

One 500ml bottle treats a standard passenger car cooling system of 4–8 litres capacity — covering most Maruti Suzuki, Hyundai, Tata, Honda, and Mahindra models sold in India. Always add to a completely cool engine, pouring into the coolant reservoir or radiator filler without exceeding the maximum level mark. The product works progressively over one to two heat cycles; for persistent leaks, a second application after 500km is acceptable.

Compatibility

Safe to use with

• All coolant colours and formulations — green (IAT), pink, blue, and orange (OAT/HOAT)
• Aluminium, copper, brass, and plastic radiators and engine water jackets
• Petrol, diesel, and hybrid vehicle cooling systems
• Maruti Suzuki, Hyundai, Tata, Honda, Mahindra, Toyota, Kia, and MG cooling systems
• Heater cores, overflow tanks, and coolant hose joints

Not suitable for

• Overheating caused by a failed thermostat or seized water pump — mechanical faults need workshop repair
• Blown head gaskets with combustion gas entering the cooling circuit — chemical sealers cannot replace machining
• Large physical cracks in the radiator tank — requires radiator replacement

Why It Matters in India

India's cooling system challenge is unlike any other market. Ambient temperatures of 42–48°C in north and central India from April to June push engines to their thermal limits daily, while stop-and-go city traffic means the cooling fan and water pump work hardest precisely when airflow through the radiator is lowest. Most Indian vehicles are also topped up with hard tap water rather than distilled water, accelerating scale buildup that reduces radiator efficiency by as much as 30% over time. Addressing minor leaks and scale with a liquid stop leak product early — before the summer peak — prevents the roadside overheating events that cause warped cylinder heads and cracked engine blocks, repairs that cost lakhs and are rarely covered by insurance.

How To Use

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

Safety Note: Never open a hot radiator cap — escaping steam causes serious burns. Always allow the engine to cool completely before servicing the cooling system.

Frequently Asked Questions

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

Yes — Rislone Liquid Aluminium Stop Leak is compatible with all standard coolant formulations including green, orange, pink, and blue types. There is no need to flush before adding, though a flush is recommended if the coolant is older than two years.

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

The product neutralises existing scale deposits, but always top up with distilled or demineralised water going forward — available at most Indian petrol stations and auto parts shops for under ₹30 per litre. Using hard tap water again will simply restart the scale buildup cycle and reduce product effectiveness over time.

Is it safe for BS6-compliant petrol and diesel engines?

Yes — the formula contains no silicates, petroleum distillates, or compounds known to affect BS6 emission sensors or catalytic converters. It is safe for use in all modern BS6 Indian market vehicles including those with exhaust gas recirculation and diesel particulate filters.

How often should I use a coolant stop leak product?

One application is typically sufficient for minor leaks and seasonal protection. If your cooling system is in good condition, an annual precautionary dose before the Indian summer (March–April) is a practical maintenance habit that costs far less than a radiator repair.

Is Cash on Delivery available and how long does delivery take?

Yes — naredi.in offers Cash on Delivery across India with free shipping on all orders. Most metro cities including Delhi, Mumbai, Bengaluru, Hyderabad, and Chennai receive delivery within 2–4 business days; other pin codes within 5–7 business days.

Complete Your Kit

For complete cooling system care suited to Indian conditions, pair this stop leak with these Rislone companions:

• Rislone Radiator 10 Minute Flush (41211): Flush out years of scale, rust, and old coolant deposits before adding the stop leak — especially important if your cooling system has been topped up with hard Indian tap water.
• Rislone Hy-Per Cool Super Coolant (41300): Lowers operating temperature by up to 10°C — a must-add for vehicles regularly caught in Delhi or Mumbai traffic during the summer months when ambient heat exceeds 45°C.

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