Fernox Super concentrate Central Heating Leak Sealer 290ml

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Fernox Super concentrate Central Heating Leak Sealer 290ml

SKU: CC4480

Estimated Delivery:

5 to 8 Working Days ✝FREE
Orders placed before 1pm are processed the same day, delivery times are between 8am & 6pm Monday to Friday, all deliveries require a signature, for delivery instructions please use the notes section during checkout.
Please see below for Items you will also require for this product.

Availability: In stock

Regular Price: £39.95

£32.35 (inc VAT)

✝ Subject to stock availability. UK Mainland only. Delivery fees and times to Northern Ireland, Scottish Highlands & Isles, Isle of Man, Isle of Wight, Isles of Scilly, and the Channel Isles may vary. Deliveries are made during working days only.

Product Description


Fernox Super Concentrate Central Heating Leak Sealer

Product Uses

Fernox Superconcentrate Leak Sealer is used throughout domestic heating systems for sealing small inaccessible leaks.  Leak Sealer works best in warm/hot circulating water and once evenly dispersed will usually be effective within 1 - 24 hours.

The sealing efficiency of Leak Sealer has been intentionally limited to prevent blockage of safety devices, pumps, etc.  For long term protection against corrosion and limescale we recommend systems are cleansed using an appropriate Fernox Restorer and then protected with a Fernox Protector.

One bottle, Superconcentrate cartridge, or aerosol is designed to treat a 100 litre system (up to 10 single radiators). The rule of thumb is to use the entire product to dose correctly. There is no detrimental affect from overdosing the system but under dosing can result in reduced protection.

Product Features

  • Ideal for reducing pressure loss from sealed systems
  • Seeks out and seals most weeps and leaks
  • Saves time and money on draining down and repairing
  • Does not cause blockages of pumps, air vents, etc.
  • Compatible with all Fernox corrosion Protectors
  • Easily and quickly added via one of the radiators
  • Universal applicator included
  • Patented application
  • Ideal for pressurised systems and combination boilers
  • Non-toxic, environmentally friendly 

Technical Information

Additional Information

SKU CC4480
Manufacturer ID TPARB1405


Here at TradePlumbing.co.uk we have voluntarily extended our returns period to 90 days, as we understand that sometimes there may be the odd item left over from a project or you may have an unexpected delay to a project meaning that you need the added peace of mind when ordering products in case a return is necessary.

We truly believe in being able to offer customers a flexible service and this extended period allows us to go that little extra to help you when in need, as long as goods are returned in the same condition as received we are happy to help.

To return any time initially please email your request to our Customer Support team at customerservice@tradeplumbing.co.uk along with your TP - Order Reference, please allow at least 1 working day for response and we will take it from there.

To View our complete Return Policy Click on Return and Refunds