Easy to contact. Easy to purchase. Pick up or delivery available. We chose pick up as wanted the item quickly. Staff at shop when picking up were very friendly and helpful. Item is fantastic ( broke discs). Thank you. Will shop again if looking for car parts.
Radiator Stop Leak 300mL - Nulon
Delivery & Shipping
Delivery & Shipping
At Universal Auto Spares, we are committed to getting your auto parts to you quickly and efficiently. Our streamlined shipping process kicks into gear the moment your order is placed. Shipping costs are conveniently calculated at checkout, ensuring transparency and no hidden fees.
Download Tax Invoice
Download Tax Invoice
Download a business tax invoice instantly after your purchase in just a few clicks. Whether you're buying for your business, accounting records, or tax purposes, you can easily access and download your invoice whenever you need it. Fast, simple, and available immediately after checkout.
Returns & Warranty
Returns & Warranty
At Universal Auto Spares, your satisfaction is our top priority. We understand that sometimes an item may not be what you expected, or you may change your mind. That's why we've made our returns process as straightforward and hassle-free as possible. If you need to return an item, you can do so within 30 days of your purchase.
Radiator Stop Leak 300ml - Nulon
Nulon Radiator Stop Leak (R50) is formulated to effectively seal leaks in radiator and heater cores, weeping cylinder head gaskets and to temporarily repair corroded welsh plugs.
Nulon R50 is formulated with a base of fibre materials. Safe for seals and hoses, has no effect on metals, including aluminium, and is safe to use in all radiators. R50 is compatible with all corrosion inhibitor and all other anti-freeze/anti-boil products.
Note:Â If the cooling system is dirty or restricted, first clean it with Nulon R40 Radiator Cleaner.Â
NOTE: EXERCISE CAUTION when removing radiator cap if engine is hot.
- Before adding this product, fill coolant to above top radiator hose
- Start engine and turn heater on
- Run engine until normal operating temperature is achieved
- Shake bottle well & add slowly to radiator
- Top up coolant & refit radiator cap securely
- Run engine for 15 minutes to allow product to circulate
- Inspect for leaks
Application Rates
Add 1 bottle for every 10 litres of water or part thereof. To protect cooling systems against corrosion and electrolysis use Nulon R45 Ultra Cool Concentrated Radiator Treatment or one of Nulon's Long Life Coolants.
Caution
Radiator stop leak products should only be used as a temporary repair. You should have a mechanic check and repair the problem at the first available opportunity.
Warning
Often when a cooling system has overheated and boiled, scale and sludge within the system is dislodged and can easily block the core of a radiator that was previously functioning satisfactorily. The sludge and scale can then quite easily cause a blockage in the radiator core when the engine is next operated. Always be aware of this possibility. If such a problem occurs, the best course of action is to have the radiator professionally removed and cleaned.
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