HT adhesive

Discussion in 'Vinyl / Impervious floor coverings' started by dazlight, Apr 4, 2011.

  1. SandyFloor

    SandyFloor Well-Known Member

    962
    289
    63
    The way I've always looked at it is that HT adhesive dries similar to cement in that it is hard and won't allow tiles to expand/shrink with heat variation. Other adhesives dry gummy and always have a certain amount of movement in them so can only be used where there aren't regular temperature changes. Another thing I've been led to believe is vinyl tiles will dry over time (accelerated with temperature variation) and shrink but HT adhesive once again will prevent this. I'm very aware the site needs to maintain a level temperature over the fitting and drying period of HT adhesive. I should add I've never had a problem with shrinkage with PS and I put that down to being able to fit it really tight so it won't show even after some shrinkage.

    Have I got it wrong for years?
     
  2. tedmaced

    tedmaced Well-Known Member

    1,331
    12
    0
    Chelsea FANS are TACKY
     
  3. Lambchop

    Lambchop Well-Known Member

    241
    10
    18
    I agree with you Hippyfitter VS90 is real good, can use with almost anything even carpet!
     
  4. dazlight

    dazlight Super Moderator

    7,203
    1,704
    113
    So Matt , would you say in a conservatory with direct sunlight you would use f46 instead of HT
     
  5. Matt

    Matt Well-Known Member Staff Member

    6,328
    1,402
    113

    Yes i would.

    But you need to make sure the flooring is cooler than the area your fitting in. You also need to keep the sun off the flooring while you install (templating paper maybe at the windows). You also need to fit teh floor with the temp in the room below around 20c.

    Some people may laugh but this is easy done with a mobile aircon unit. People may think im mad saying using a aircon unit, but think of the aircon as a tool. You can buy a good mobile aircon unit for £200 quid. Its no different to you working in th winter months in a property with no heating and taking a heater with you or getting the site maybe to supply a portable heater.

    LVT's change there size with temperature. If you fit a LVT in a hot area and the product is at the same temp (lets say 30c in a conservatory), well there is only one thing that is going to happen to that product when it gets cold in there. It will shrink! This is why i always say to fit the product colder than the room, so below 20c as most peoples rooms are 20c+ all year round. The only thing the lvt can do now is grow, it will make the joints tighter. Worse case is that a plank may pop up as its grown to much, again if you fit on F46 you can pull the plank out and trim the plank and refit on the same adhesive.
     
  6. dazlight

    dazlight Super Moderator

    7,203
    1,704
    113
    Sounds good logic mate
     
  7. SandyFloor

    SandyFloor Well-Known Member

    962
    289
    63
    I don't know if I'd be brave enough to do that in a conservatory with plank formats. I like the idea of an air conditioner though. I've done a few jobs on hot summer days. Have left the tiles in a cool place and take them out just before fitting but still there is shrinkage. It's never been bad enough to cause a problem from the customer but I think we would all like it as tight as possible :D
     
  8. Matt

    Matt Well-Known Member Staff Member

    6,328
    1,402
    113
    Problem is sandy, you may keep the product colder. But if the room your fitting is hot then the flooring will be growing as you install. You have to get the whole floor fitted and butted up aginst the skirts while the room is cold. If the room is hot before you have got the flooring trapped in it will of already of grown and it will start to shrink.

    As for being scared of using F46, like i have pointed out - F46 is recommended over underfloor heating. So why use HT when F46 is recomended over a floor that is going to go hot / cold/ hot/ cold all year round compared to a conservatory that only does this 6 months of the year? The difference is that HT is 'supposed' to hold the planks at what size they was fitted, but like i say, fit teh planks a temperature that they can only grow and your sorted.

    Hence you install on underfloor heating with it turned off, so the product grows rather than shrinks
     
  9. dazlight

    dazlight Super Moderator

    7,203
    1,704
    113
    I think on my next conservatory I will do the HT as I do but do a section in f46.
    If it's someone I know.
     
  10. SandyFloor

    SandyFloor Well-Known Member

    962
    289
    63
    Yep I would consider it on ufh ok but still not convinced by a conservatory. Direct sunlight can be so much hotter :D
     
  11. SandyFloor

    SandyFloor Well-Known Member

    962
    289
    63
    Yep I would consider it on ufh ok but still not convinced by a conservatory. Direct sunlight can be so much hotter :D
     
  12. Matt

    Matt Well-Known Member Staff Member

    6,328
    1,402
    113

    If Fball put a HT after the F46 would you use it?

    So its now called F46HT for instance?
     
  13. dazlight

    dazlight Super Moderator

    7,203
    1,704
    113
    Lol I would, but that Phil nightingale did say yesterday they want to invent a ps HT adhesive.
    Might be worth you chatting with him Matt.
    I can give you his number tomorrow mate
     
  14. Matt

    Matt Well-Known Member Staff Member

    6,328
    1,402
    113

    Im sure he can find me if he wants to talk about it! LOL

    They know my number
     
  15. merit

    merit Well-Known Member

    8,208
    1,676
    113
    I always thought you couldnt lay products like Lino on ps adhesive as it would allow it to shrink, does the same not happen with Amtico. Ive alway used HT for this reason. I have never rolled out the adhesive tho so I will have to try that on the next one
     
  16. bladerunner

    bladerunner Well-Known Member

    1,280
    17
    38
    Ive laid many a lino using ps,its the accliming the product that is the key!.
     
  17. Jay

    Jay Well-Known Member

    686
    30
    0
    I always use forbos lino adhesive its the best the stuff is like chewing gum they can keep that F54 it goes dead to quick at least with the forbo you get a good open time and the stuff grabs instantly.
     
  18. doidgey

    doidgey Well-Known Member

    378
    28
    28
    Matt you are a very clever man! you do think about things, i have always used F46 or Morelys PS don't like HT you have to fit a meter at a time.

    Steve.
     
  19. Matt

    Matt Well-Known Member Staff Member

    6,328
    1,402
    113

    LOL, :shock: Im actually pretty stupid mate. I just try alot of things and sometimes it works!
     
  20. bladerunner

    bladerunner Well-Known Member

    1,280
    17
    38
    I have to agree with Steve,F46 and Morleys all the way but to be honest i have used HT in the past and it is something that you can get used to and quite a few retailers that i know swear by using HT (ONLY).
     

Share This Page