Unfortunately, this deal has expired 29 March 2023.
425°
Posted 27 February 2023

Hammerite Underbody Seal with added Waxoyl, 500ml - £2.40 (Free Click & Collect) @ Halfords

£2.40£5.9960% off
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Random1234 Super Poster
Joined in 2017
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About this deal

This deal is expired. Here are some options that might interest you:

Reduced from £5.99 to £2.40, Hammerite Underbody Seal seems to be a good deal at this price!

Next best price is from Amazon.co.uk for £5.99

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The Hammerite Underbody Seal with added Waxoyl, gives heavy-duty protection to high-impact areas of your vehicle, such as wheel arches, underbody etc.

Powerful rust inhibitors based on the proven Waxoyl system displace moisture and seal the surface against further corrosion to give lasting protection.

Features & Benefits:
  • Contains added Waxoyl
  • 500ml tin
  • One coat, heavy-duty protection
  • Excellent corrosion resistance
  • Remains flexible, will not crack or peel
  • Super smooth application
  • Free from gritty particles
  • Use on underbody, wheel arches and other high impact areas
  • Reduces drumming and road noise if applied in door panels and underfloor panels
Halfords More details at

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30 Comments

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  1. Wolfey's avatar
    quick mechanic tip

    You actually don't want to seal the bottom of your car, espcially the structrual steel, only the cabin of your car is designed to be waterproof, all other parts are designed to have water running through it.

    Applying underseal often than not trap moisture that is usually able to freely run down the car frame through various drain holes, and create serious rusting problems behind the seal after a few years.
    deleted2817570's avatar
    Great knowledge and makes sense, thank you
  2. Proveright's avatar
    Thanks OP. Good price. But as usual no stock near me or where ever I tried.
    Random1234's avatar
    Author
    Sorry Mate. But It seems to be available near my area and that is why I posted the deal

    49657524_1.jpg (edited)
  3. A77's avatar
    Stock available from White City Manchester, Manchester Fort and Ashton-U-L of helpful.
  4. netadeal's avatar
    used on lawnmower deck seems to help stop the grass sticking to it
  5. shug119's avatar
    Good find
  6. SqueakyWalker's avatar
    Any good for the shed roof?
    RagnarUK's avatar
    I don't think felt roofs rust pal
  7. sdenisss's avatar
    Would need about 10 cans to sort out my Transit
  8. eliHd452's avatar
    Can I use this to under coat my formula 1 car?.... It's Ferrari! (edited)
    rrr99gp's avatar
    Not you’re fine they’re carbon fibre or aluminium.
  9. BattleBeast1's avatar
    It's the sort of stuff you'd use on an old banger, this is 1970s bitumen type underseal....wouldn't use it on a newish car. If I was protecting the under side it would be with a coat of Waxoyl or Dinitrol
  10. Navcity's avatar
    Good for lubricating your undercarriage
    Bonedome123's avatar
    Badum Tissssshhh, thank you very much!  ‍.. 🍺
  11. sangheili08's avatar
    Does it have a BBE ? And how many tins to cover the vital parts of underbody average car ?
  12. namGB's avatar
    Got one in the leigh branch today there’s one left
  13. shubyz's avatar
    I’ve got an old 67 mustang. Would this be ok to use?
  14. Scenicblur's avatar
    My local store didn't have any 500ml tins but the 1L tin they did have, was only £3.70 - even cheaper per litre, than this.
  15. Lauren_Alice's avatar
    Wandsworth have them in stock 
's avatar