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250ml CT1 Miracle Seal Leak Repair for Radiators, Engine Blocks & Cooling Systems (740103)
Default Title
£12.99 ex. VAT £10.83
Overview ✕

Features:

  • 🛠 Seals Cooling System Leaks – Permanently fixes leaks in radiators, hoses, water pumps, and small engine block cracks.

  • 💧 Non-Clogging Formula – Advanced suspension ensures smooth flow without blocking the cooling system.

  • 🛡 Corrosion Protection – Built-in anti-corrosion additives extend the life of your cooling components.

  • ⚙️ Lubrication Benefits – Includes lubricating agents to keep the water pump and cooling system running efficiently.

  • ✅ Universal Compatibility – Safe for all water-based coolants and antifreeze, suitable for all radiator types.

Description:
CT1 Miracle Seal 250ml (740103) is a fast-acting and reliable leak repair solution for cooling systems. Designed to permanently seal small leaks in radiators, hose pipes, water pumps, and even hairline cracks in engine blocks, this water-based formula delivers lasting protection without clogging your system. Its blend of non-clogging particles, corrosion inhibitors, and lubrication additives ensures long-term performance and protection. Compatible with all radiator types, water-based coolants, and antifreeze, Miracle Seal is trusted by drivers, mechanics, and trade professionals for quick and effective cooling system repairs.

Delivery Details ✕

 

Our Delivery Options

Express 1/3 Day Delivery

  • Delivery Fee:
    • £3.79 delivery for orders under £30
    • Free delivery for orders over £30
  • Order By:
    • 2:30pm 
  • Delivery Time: Before 6pm Monday-Friday

Next Business Day Delivery

  • Delivery Fee:
    • £7.50
  • Order By:
    • 2:30pm 
  • Delivery Time: Before 6pm Monday-Friday

Pre-12 Next Business Day Delivery

  • Delivery Fee: £16.99 delivery for all pre-12 orders (Weekend Only)
  • Order By:
    • 2:30pm 
  • Delivery Time: Before 12pm Monday-Friday

Remote Areas Delivery

  • Delivery Fee:
    • £3.99 
  • Order By:
    • 2:30pm 
  • Delivery Time: Standard delivery (2-4 days)

Weekend Delivery

  • Delivery Fee:
    • £19.99
  • Order By:
    • 2:30pm Friday
  • Delivery Time: Before 6pm Saturday

Good To Know

For orders to some addresses, especially in the Highlands of Scotland and Offshore, next day delivery options are not available and delivery can take several days. Saturday delivery is not available for remote areas.

Items over 30kg: Items over 30kg can only be delivered from Monday to Friday. If ordered before 3pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.

 

 

 

 

250ml CT1 Miracle Seal Leak Repair for Radiators, Engine Blocks & Cooling Systems (740103)

Frequently bought together

250ml CT1 Miracle Seal Leak Repair for Radiators, Engine Blocks & Cooling Systems (740103)

£12.99

+
200ml MSV MULTISOLVE Multi Purpose Solvent Adhesive & Sealant Remover Clear CT1 (683042)

£7.58

+
290 ml CT1 Blue TRIBRID® Multi Purpose Sealant & Adhesive (535606)

£11.59

Total price:

BRAND: CT1

250ml CT1 Miracle Seal Leak Repair for Radiators, Engine Blocks & Cooling Systems (740103)

purchased in the last 24 hours
£12.99 inc VAT
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£10.83 ex VAT
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Frequently bought together

250ml CT1 Miracle Seal Leak Repair for Radiators, Engine Blocks & Cooling Systems (740103)

£12.99

+
200ml MSV MULTISOLVE Multi Purpose Solvent Adhesive & Sealant Remover Clear CT1 (683042)

£7.58

+
290 ml CT1 Blue TRIBRID® Multi Purpose Sealant & Adhesive (535606)

£11.59

Total price:

Features:

  • 🛠 Seals Cooling System Leaks – Permanently fixes leaks in radiators, hoses, water pumps, and small engine block cracks.

  • 💧 Non-Clogging Formula – Advanced suspension ensures smooth flow without blocking the cooling system.

  • 🛡 Corrosion Protection – Built-in anti-corrosion additives extend the life of your cooling components.

  • ⚙️ Lubrication Benefits – Includes lubricating agents to keep the water pump and cooling system running efficiently.

  • ✅ Universal Compatibility – Safe for all water-based coolants and antifreeze, suitable for all radiator types.

Description:
CT1 Miracle Seal 250ml (740103) is a fast-acting and reliable leak repair solution for cooling systems. Designed to permanently seal small leaks in radiators, hose pipes, water pumps, and even hairline cracks in engine blocks, this water-based formula delivers lasting protection without clogging your system. Its blend of non-clogging particles, corrosion inhibitors, and lubrication additives ensures long-term performance and protection. Compatible with all radiator types, water-based coolants, and antifreeze, Miracle Seal is trusted by drivers, mechanics, and trade professionals for quick and effective cooling system repairs.

Prices drop automatically as you add more to your basket — no code needed. Prices shown inc VAT.

Free express delivery on all orders over £30. Choose your speed at checkout.

Express Delivery

1–3 working days

Orders under £30
£3.79
Orders over £30
FREE

Next Day Delivery

Order by 2pm Mon–Fri

All orders
£7.50
FREE for Gold members

Pre 12 Delivery

Next working day, by midday

All orders
£16.99

Pre 10.30 Delivery

Next working day, by 10:30am

All orders
£19.99

Weekend Delivery

Saturday & Sunday

Orders under £30
£13.99
Orders over £30
£7.50

Remote Areas Delivery

Highlands, islands & remote postcodes

Orders under £30
£5.49
Orders over £30
£3.00

Orders before 2pm Mon–Fri dispatch same day. Remote-area surcharges apply to Highlands, islands & selected postcodes. All prices include VAT.

  • Free Shipping Over £30

    Orders over £30 ship free.

  • 30 Day Easy Returns

    Not right for the job? Send it back within 30 days for a full refund.

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