

🛠️ Seal the deal on rust before it seals your fate!
Hammerite HAM6711403 is a 1-litre bitumen-based underbody seal designed to provide heavy-duty protection against abrasion, impact, moisture, and salt. Utilizing powerful Waxoyl rust inhibitors, it displaces moisture and seals surfaces to prevent corrosion, ideal for wheel arches and floor panels. Compact and easy to apply, it’s a trusted solution with a 4.6-star rating from over 1,400 users, extending vehicle life by safeguarding vulnerable underbody areas.

















| ASIN | B002HMTZG4 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 1,511 in Automotive ( See Top 100 in Automotive ) 12 in Fillers, Adhesives & Sealants |
| Colour | 1 litre |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,407) |
| Date First Available | 15 July 2009 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Package Quantity | 1 |
| Item Weight | 998 g |
| Item model number | 5092952 |
| Manufacturer | Hammerite Products ICI Ltd. |
| Material | Bitumen |
| Part Number | 5092952 |
| Product Dimensions | 12 x 11.5 x 11.5 cm; 998 g |
| Size | 1 Litre |
| Style | Compact |
J**N
Good paint
Always good results
N**X
Under seal
Good stuff easy to apply well worth it
R**Y
Good underbody protection but remains tacky
I was looking for a classic car factory style under seal. I’ve used waxoyl products over many years and they are great at curbing rust so no concerns there. The product looks right but remains tacky after drying. It may dry out fully as time passes but I was hoping for a closer match to the wax-based product applied to the car originally.
S**T
very impressed
The Hammerite 1L Underbody Seal Tin offers a practical solution for protecting vehicle undercarriages. This product is designed to create a durable, flexible barrier against rust, corrosion, and stone chips. Application from the tin is straightforward, suitable for brushing or rolling onto clean, prepared surfaces. It dries to a robust finish that appears capable of withstanding typical road conditions, including moisture and salt exposure. The 1-litre size is convenient for spot repairs or smaller projects, providing adequate coverage without excessive waste. Overall, it functions as expected, delivering a protective layer intended to prolong the life of metallic components underneath a vehicle. A solid option for routine DIY maintenance.
S**S
Good product
Used for underneath motorhome floor. Did the job
Y**V
Exellent
Of course, this product is tested by time, but I am very satisfied with it. It applies easily with a brush, though towards the end of the can it became a bit difficult to spread. It’s better to buy a little acetone to make it slightly more liquid
R**T
Evri be careful !
Product seems very good .Unfortunately the courier isn't my parcel was delivered by a friendly builder who found it dumped along with other parcels ! Evri !
C**Y
as described
as described
Trustpilot
4 days ago
2 months ago