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Thread: slc on ufh

  1. #1
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    Default slc on ufh

    ive recently self levelled over ufh a couple of times but the floor ended up a bit up and down to say the least. which is a pain when it was flat to start with. I used a spike roller mixed the slc a bit on the thick side then rollered it. but it didnt come out that level. which in turn made the tiling harder and slowed me down. both floors looked fine when down but it was a bit of a pain and time as they say is money. was going to ditch the roller and use groat float to try and achieve a flatter floor. any ideas ? which is best method? cheers

  2. #2
    Tilers Forums Super Moderator whitebeam's Avatar
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    Default Re: slc on ufh

    Sound like you may have mixed it to thick, don't throw spiked roller away just yet. You don't mention what slc you used
    "Experience is simply the name we give our mistakes"

  3. #3
    doug boardley
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    Default Re: slc on ufh

    I believe that the spiked rollers are more for getting out air bubbles than for levelling tho' groucho

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    Default Re: slc on ufh

    I used granfix slc. I think its a new one goes up to 50 mm. how runny do you normally mix it? i thought if it was runny it would fall through the ufh and not cover it. maybe with a groat flout I can get it level ish

  5. #5
    DHTiling
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    Default Re: slc on ufh

    The amont of water to use will be on the bag...

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    Tilers Forums Super Moderator whitebeam's Avatar
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    Default Re: slc on ufh

    Never used granfix, I use mapei eco and levels superb
    "Experience is simply the name we give our mistakes"

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    Default Re: slc on ufh

    normally just mix it by feel or I guess with slc its best to follow the guides cheers guys

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    Tilers Forums Arms Member charlie1's Avatar
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    recently used this stuff due to local mapei supplier running out of renovation screen... it should be renamed as granfix compound....its soooo bad i can't stress this enough. i should have realised when reading instructions ... mix 3.75 (i think) L of water with 25 kg bad... the end result was i floor that had to be re levelled....furious!!

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    Tilers Forums Super Moderator whitebeam's Avatar
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    Thats not alot of water....
    "Experience is simply the name we give our mistakes"

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    Tilers Forums Arms AliGage's Avatar
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    Default

    I've just used ultra level-it on a slate floor with UFH i'm doing this week. I think sometimes people misconstrue SLC. Yes to an extent you it "self levels" but you have to trowel it out to help it along. It's sometimes easy to go through the motions of mixing addy as we do it day in day out. I make a point of measuring out the exact amount of water with a cheap plastic measuring jug i carry. OCD i know, but it gets my mind set on the fact it's SLC and not addy so i don't mix it too thick. The stuff i used this week was 4.25 litres to a bag.
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    Tilers Forums Arms Member charlie1's Avatar
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    all points taken and i have used loads of different types...lesson learned i will never use granfix anything ever again

  12. #12
    Tilers Forums Super Moderator whitebeam's Avatar
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    Tilemaster levelflex is 4.5-5.0 litres of water and 20kg bags...
    Likes Doug Boardley, John Benton liked this post
     
    "Experience is simply the name we give our mistakes"

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