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IWH K-Seal Universal radiator leak repair, 236 ml, cooling system sealant
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IWH K-Seal Universal radiator leak repair, 236 ml, cooling system sealantIWH K-Seal Universal radiator leak repair, 236 ml, cooling system sealant
By the manufacturer
IWH K-Seal Universal radiator leak repair, 236 ml, cooling system sealantIWH K-Seal Universal radiator leak repair, 236 ml, cooling system sealantIWH K-Seal Universal radiator leak repair, 236 ml, cooling system sealant
ℹ The image may differ from the exact product. Always check the specifications for exact size, colour and features. In the generated lifestyle/demonstration photos (with captions created by XtremeOffice), the scale shown is not always realistic — the product is sometimes deliberately shown large and prominently for recognisability.
IWH

IWH K-Seal Universal radiator leak repair, 236 ml, cooling system sealant

€17,46
incl. VAT
€14,43 excl. VAT (21%)
Price excluding shipping costs: €4,95 incl. VAT for orders under €49,95. From €49,95 we ship for free.
✓ In stock (4 pieces)
Ordered now, delivered Wednesday
📦
Need more? New stock expected in week 46 (9 November - 15 November 2026).
Place your order and we'll make sure it's delivered on time.
Brand: IWH
Article number11570525
EAN5060002968154
OEM number968154
Weight0,260 kg
DimensionsB: 85 mm × H: 111 mm × D: 38 mm
Country of originVerenigde Staten
Customs tariff (HS code)38249996
VAT rate21%
Dex

This is why Dex likes this article

Need a quick and simple fix for leaks in your cooling system?⁠‌‌‌‍‌‌‌‌‍‌‍‍‌‌‌‌‍‌‌‌‍‍‌‍‌‍‌‍‍‍‌‍‌‍‌‌‌‍‍‌⁠ Add this sealant to the coolant and it stops leaks in the radiator, engine block, cylinder head or water pump.⁠‌‌‌‍‌‌‌‌‍‌‍‍‌‌‌‌‍‌‌‌‍‍‌‍‌‍‌‍‍‍‌‍‌‍‌‌‌‍‍‌⁠ A practical solution you can apply on the go, without any hassle.⁠‌‌‌‍‌‌‌‌‍‌‍‍‌‌‌‌‍‌‌‌‍‍‌‍‌‍‌‍‍‍‌‍‌‍‌‌‌‍‍‌⁠

When do you choose this product?

What does this radiator leak stopper do?
K-Seal Universal is a radiator sealant that stops leaks in vehicle cooling systems. You add it to the coolant, and it automatically seals leaks in radiators, engine blocks, cylinder heads, heater radiators and water pumps. This product is useful when you are experiencing coolant loss or overheating due to small leaks in the cooling system.

Why choose this universal variant?
This K-Seal product is universally applicable, which means you can use it in different types of vehicles without needing a brand- or model-specific product. The 236 ml pack contains enough product for a standard cooling system treatment. This universal formula works effectively on the various materials used in cooling systems.

How does the sealing process work?
The product circulates with the coolant throughout the entire cooling system. When it comes into contact with a leak, the active ingredients ensure the hole is sealed. The product has been specially developed to react only where coolant is escaping, without blocking the normal coolant passages.

Practical application and use
You add K-Seal directly to your vehicle's coolant. It works during normal driving and requires no disassembly of components. Please note that you should only use the product on a cooling system that is not overheated, and always follow the instructions on the packaging for the correct dosage and application.
Dex

Dex knows - user tips

Wear gloves and protect your eyes during use. If the product does come into contact with your eyes, rinse thoroughly with water immediately. Keep out of reach of children and make sure any residue does not end up in the drains or the environment; dispose of the empty packaging with chemical waste.

Specifications according to the manufacturer

dK-Seal Universal Cooling System Leak Repair
Long-lasting cooler sealant for the most demanding requirements
• Simply add the cooler sealant to the coolant – no draining or flushing required
• The sealant mixes effortlessly with coolants (G12, G13, etc.) and works at all temperatures
• Proven and tested by car mechanics worldwide

Application examples:
- ideal for petrol & diesel engines, hybrid & electric vehicles, motorcycles, lorries, boats, tractors & more
- stops leaks in coolers, engine blocks, cylinder heads, radiators and water pumps without a workshop visit

Manufacturer

IWH Vertriebs GmbH

Im Täle 15

75031 Eppingen-Mühlbach

D

www.iwh-vertrieb.de

Hazard information

GHS Pictograms

GHS07 GHS07

H-statements (Hazards)

  • EUH208: Contains LIMONENE, CITRONELLOL, HEXYL CINNAMAL, BENZYL SALICYLATE, TETRAMETHYL ACETYLOCTAHYDRONAPHTHALENES, HYDROXYCITRONELLAL. May cause an allergic reaction.
  • H319: Causes serious eye irritation.
  • H412: Harmful to aquatic life with long lasting effects.

P-statements (Precautionary measures)

  • P102: Keep out of the reach of children.
  • P273: Avoid release to the environment.
  • P280: Wear protective gloves/protective clothing/eye protection/face protection.
  • P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes.
  • P337+P313: If eye irritation persists: Get medical advice/attention.
  • P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
Product information checked by XtremeOffice
This page has been compiled based on information from the manufacturer and our supplier. Last checked on 31-10-2026.