1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

prime/seal cut tarmac edge before laying cold tarmac repair?

Discussion in 'Building' started by Draughtsman, 31 Jul 2019.

  1. Draughtsman

    Draughtsman

    Joined:
    30 Mar 2012
    Messages:
    549
    Thanks Received:
    2
    Location:
    Monmouthshire
    Country:
    United Kingdom
    Would a bituminous roofing felt adhesive be suitable for priming a (cut) tarmac edge, before laying some cold repair tarmac down adjacent to it? It has to be a better job if a primer or edge sealant is used but the spray-on stuff is quite pricey.

    I was thinking of using something like Cementone Feltfix?

    Thank you,

    Dain
     
  2. Sponsored Links
  3. scbk

    scbk

    Joined:
    22 Dec 2012
    Messages:
    835
    Thanks Received:
    155
    Location:
    Ross-shire
    Country:
    United Kingdom
    TBH I don't think it's worth the effort, not sure a primer will add much to a cold tar repair.
     
  4. Draughtsman

    Draughtsman

    Joined:
    30 Mar 2012
    Messages:
    549
    Thanks Received:
    2
    Location:
    Monmouthshire
    Country:
    United Kingdom
    Those bags of patch repair look like they would be ok if not driven over, in a corner etc.

    Would a tin of bituminous roofing felt adhesive not be suitable for bonding new tarmac to old along a cut edge?
     
  5. ^woody^

    ^woody^

    Joined:
    3 Sep 2006
    Messages:
    32,393
    Thanks Received:
    4,387
    Location:
    West Mids
    Country:
    United Kingdom
    The tarmac sticks to anything without priming.
     
    • Thanks Thanks x 1
  6. Draughtsman

    Draughtsman

    Joined:
    30 Mar 2012
    Messages:
    549
    Thanks Received:
    2
    Location:
    Monmouthshire
    Country:
    United Kingdom
    Sry, I haven't been very clear, but I was thinking more about having it act as an edge sealant to prevent water ingress along the joint between old and new?

    I'm not kitted out for cooking up bitumen block and I wouldn't know where I could find a small piece anyway, it seems to come in large quantities.
     
  7. ^woody^

    ^woody^

    Joined:
    3 Sep 2006
    Messages:
    32,393
    Thanks Received:
    4,387
    Location:
    West Mids
    Country:
    United Kingdom
    I can't see how this would be an issue. If the joint is clean and the new tarmac well compacted then thats enough.You dont see any drive way have joints sealed and looking around the public paths, its not done on them either.
     
  8. Ian H

    Ian H

    Joined:
    14 Sep 2010
    Messages:
    7,024
    Thanks Received:
    851
    Location:
    Rochdale
    Country:
    United Kingdom
    I use the edge sealer spray, to me it seems a bit watery to make a decent joint but I don’t pay for it so I use it every time. The tubbed tarmac is much better than the bags.

    5FD12181-86C8-49AF-87D5-1A9E45D3DCEB.jpeg
     
  9. Mottie

    Mottie

    Joined:
    27 Feb 2017
    Messages:
    14,773
    Thanks Received:
    1,675
    Location:
    Essexshire
    Country:
    United Kingdom
    I’ve bought three or four bags of cold tarmac to repair a patch in my drive a while ago. Pretty sure I bought a tin of spray edge sealer too. I remember it was quite expensive for what it was. This post has reminded me that it’s still sitting in my garage so I must get my lazy arse in gear and get it done.
     
  10. Sponsored Links
  11. scbk

    scbk

    Joined:
    22 Dec 2012
    Messages:
    835
    Thanks Received:
    155
    Location:
    Ross-shire
    Country:
    United Kingdom
    If you wanted to you can use overbanding tape. Just needs a blow torch.

    It's not really necessary though
     
  12. Draughtsman

    Draughtsman

    Joined:
    30 Mar 2012
    Messages:
    549
    Thanks Received:
    2
    Location:
    Monmouthshire
    Country:
    United Kingdom
    You do see it used on patches and alterations, where can I pick some up? What are the brandd names please?

    Thanks,

    Dain
     
  13. Draughtsman

    Draughtsman

    Joined:
    30 Mar 2012
    Messages:
    549
    Thanks Received:
    2
    Location:
    Monmouthshire
    Country:
    United Kingdom
    Woody,
    Bagged tarmac to tie in to edge of existing drive, tidying a 170 wide strip along the outer edge of extension footing, I cleaned out the blockwork and render spillage, and weeds (diyer lets grass grow shock horror) so maybe just run a pressure washer along top of exposed footing too.

    What's the min depth of tarmac required?

    Does cold tarmac need to be laid in dry conditions?

    Can a decent finish be achieved with a 150sq tamper? I see that screwfix's are quite elongated.

    Thanks
    Dain
     
  14. scbk

    scbk

    Joined:
    22 Dec 2012
    Messages:
    835
    Thanks Received:
    155
    Location:
    Ross-shire
    Country:
    United Kingdom
    You can get it online, or locally, builders merchants/industrial trade counters etc

    If it's just along the edge of a building, it's not going to get driven on, so I wouldn't worry about depth. Dry day is best but not life or death.
     
  15. Ian H

    Ian H

    Joined:
    14 Sep 2010
    Messages:
    7,024
    Thanks Received:
    851
    Location:
    Rochdale
    Country:
    United Kingdom

    https://www.instarmac.co.uk/ stuff is great, tubs are better than bags.

    I’d hire a small wacker.
     
  16. ^woody^

    ^woody^

    Joined:
    3 Sep 2006
    Messages:
    32,393
    Thanks Received:
    4,387
    Location:
    West Mids
    Country:
    United Kingdom
    Look on the bag for minimum depths, but from experience, I've done it feathered to about 15mm and it's been fine. The main thing is to ensure you compact it well, so it all bonds together.

    Yes a 150 tamper will do your strip. What I tend to use is a block of wood (or make an inverted T - like a tamper) and put some polythene on the wood, dampen it and tamp or use a mallet or lump hammer. Warm the bag up if its cold outside, and I've always dried the area first with a torch, but it does not need to be bone dry.
     
    • Thanks Thanks x 1
  17. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page