Highlights- Forms a glass hard layer when exposed to air.
- Repairs cracks in cylinder blocks of cast iron, steel and aluminium, without dismantling.
- Stops small leaks/cracks in metal head gaskets.
- Assures a permanent repair in 30 minutes.
- Wynn’s Cylinder Block Seal is NOT compatible with cooling liquids. It should only be added to water. Do not pour it into oil or directly into the cylinders. See technical data sheet for directions.
- Compatibility Engine Petrol & Hybrid petrol, Diesel & Hybrid diesel
OverviewCylinder Block Seal
W72250 · 325ml / H72278 · 325ml
Repairs cracks in cylinder blocks without dismantling.
Forms a glass hard layer when exposed to air.
Repairs cracks in cylinder blocks of cast iron, steel and aluminium, without dismantling.
Stops small leaks/cracks in metal head gaskets.
Assures a permanent repair in 30 minutes.
Parts Effectiveness
Cooling System
TDS
Download
MSDS
Download
Image
Download
Add to Compare Find Stores
Compatibility
Engine Petrol & Hybrid petrol, Diesel & Hybrid diesel
Internal and external cracks in cylinder blocks, which lead to external or internal water loss to the oil system or combustion chamber.In case of coffee coloured oil/water emulsion in the oil system (can be seen on filler cap).
How to use
Use when required
Wynn’s Cylinder Block Seal is NOT compatible with cooling liquids. It should only be added to water. Do not pour it into oil or directly into the cylinders. See technical data sheet for directions.
Free & Easy Returns
Best Deals
![/fashion-men/adidas/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-men-brands-01.png)
![/fashion-men/reebok/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-men-brands-02.png)
![/fashion-men/puma/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-men-brands-03.png)
![/fashion-men/jack_jones/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-men-brands-04.png)
![/fashion-men/american_eagle/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-men-brands-05.png)
![/fashion-men/tommy_hilfiger/tommy_jeans/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-men-brands-06.png)
![/fashion-men/calvin_klein/calvin_klein_jeans/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-men-brands-07.png)
![/fashion-men/seventy_five/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-womens-new-brands-01.png)
![/fashion-men/skechers/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-womens-new-brands-02.png)
![/fashion-women/adidas/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-women-brands-01.png)
![/fashion-women/puma/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-women-brands-03.png)
![/fashion-women/mango/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-women-brands-05.png)
![/fashion-women/guess/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-women-brands-09.png)
![/fashion-women/calvin_klein/calvin_klein_jeans/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-women-brands-07.png)
![/fashion-women/tommy_hilfiger/tommy_jeans/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240305/4ef48af441e2b44cea1673cd2e4aff67/en_dk-women-brands-06.png)
![/fashion-women/ella/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20241812/en_dk-nav-brands-01.png)
![/fashion-women/skechers/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20241812/en_dk-nav-brands-02.png)
![/fashion-women/american_eagle/?sort[by]=popularity&sort[dir]=desc&limit=50](https://f.nooncdn.com/cms/pages/20250317/womens/en_dk-nav-brands-09.png)
![/fashion/view-all-kids-clothing/adidas/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240911/nav-web/en_mb_uae_brand-02.png)
![/fashion/view-all-kids-clothing/puma/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240911/nav-web/en_mb_uae_brand-04.png)
![/fashion/view-all-kids-clothing/nike/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240911/nav-web/en_mb_uae_brand-01.png)
![/fashion/view-all-kids-clothing/disney/disney_minnie_mouse/disney_frozen/disney_princess/disney_mickey_mouse/disney_baby/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240911/nav-web/en_mb_uae_brand-03.png)
![/fashion/view-all-kids-clothing/tommy_hilfiger/tommy_jeans/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240911/nav-web/en_mb_uae_brand-07.png)
![/fashion/view-all-kids-clothing/calvin_klein/calvin_klein_jeans/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240911/nav-web/en_mb_uae_brand-08.png)
![/fashion/view-all-kids-clothing/mothercare/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240911/nav-web/en_mb_uae_brand-06.png)
![/fashion/view-all-kids-clothing/kappa/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240911/nav-web/en_mb_uae_brand-10.png)
![/fashion/view-all-kids-clothing/new_balance/?sort[by]=popularity&sort[dir]=desc&limit=50](https://a.nooncdn.com/cms/pages/20240911/nav-web/en_mb_uae_brand-11.png)
![/baby-products/momcozy/?f[partner][]=p_9404&sort[by]=popularity&sort[dir]=desc&limit=50&page=1&isCarouselView=false&av=0](https://a.nooncdn.com/cms/pages/20241031/navrev-baby/en_uae_dk-nav-04.png)
![/music-movies-and-tv-shows/musical-instruments-24670/pianos-keyboards-synthesizers/roland/?sort[by]=popularity&sort[dir]=desc&limit=50&page=1&isCarouselView=false](https://f.nooncdn.com/cms/pages/20250407/books-nav/en_uae_dk-nav-brands-05.png)
![/music-movies-and-tv-shows/musical-instruments-24670/pianos-keyboards-synthesizers/mike_music/?sort[by]=popularity&sort[dir]=desc&limit=50&page=1&isCarouselView=false](https://f.nooncdn.com/cms/pages/20250407/books-nav/en_ksa_dk-nav-brands-04.png)
