Which floor levelling compound?
Discussion
Well I quite liked the 2 part latex stuff last time I used it, there are lots to choose from.
You'll need to check if the base is sound or not (no point buying fibre reinforced stuff if you dont really need it), also check max depth and minimum especially if youre taking it to a feather edge as some cope with different thicknesses.
Also might need to prime the concrete depending on what's that's like.
If you're doing it yourself you'll need a way to mix it up quickly in volume (big container + powered mixer), a way to shift it around the floor & get air out (its not *that* self levelling) and suitable footwear if you haven't got easy access to move around the space you're levelling if its large.
You'll need to check if the base is sound or not (no point buying fibre reinforced stuff if you dont really need it), also check max depth and minimum especially if youre taking it to a feather edge as some cope with different thicknesses.
Also might need to prime the concrete depending on what's that's like.
If you're doing it yourself you'll need a way to mix it up quickly in volume (big container + powered mixer), a way to shift it around the floor & get air out (its not *that* self levelling) and suitable footwear if you haven't got easy access to move around the space you're levelling if its large.
I've got some plastic 40ltr buckets, its not a massive area(12sqm). base is circa 8 months old, totally sound, I might drop some PVA across it the day before just to help with suction a little.
its only 5.99 for next day delivery so saves me collecting etc.
This is what I was looking at
https://www.theunderfloorheatingstore.com/products...
its only 5.99 for next day delivery so saves me collecting etc.
This is what I was looking at
https://www.theunderfloorheatingstore.com/products...
Edited by Frankychops on Thursday 7th August 08:20
I’ve generally used the Mapei stuff from Screwfix for that sort of thickness and purpose, mixed in a couple of builders tubs.
You’ll need at least a second pair of hands to mix up while you pour. Ideal is to cover the area as quickly as possible with a consistent amount of mix. You’ll need a float to push it around a bit into corners, and I strongly recommend a spiked roller to encourage it to even out and get rid of air bubbles.
I mark the floor with points at metre intervals, then use shim packers and a level to find out the floor height difference at that point from some datum point. Gives an idea of low spots that need more mix, and also helps to calculate the number of bags accurately.
I’d recommend using a proper concrete primer for SLC as well, rather than just PVA. You don’t want any of it delaminating.
You’ll need at least a second pair of hands to mix up while you pour. Ideal is to cover the area as quickly as possible with a consistent amount of mix. You’ll need a float to push it around a bit into corners, and I strongly recommend a spiked roller to encourage it to even out and get rid of air bubbles.
I mark the floor with points at metre intervals, then use shim packers and a level to find out the floor height difference at that point from some datum point. Gives an idea of low spots that need more mix, and also helps to calculate the number of bags accurately.
I’d recommend using a proper concrete primer for SLC as well, rather than just PVA. You don’t want any of it delaminating.
...and of you go for the screwfx Mapei...buy a few more bags than you think you need. Can always return for a refund.
This is coming from someone who's had to down tools twice mid pour and complete the 1hr round trip to buy more whilst hoping there is still a wet edge to work to upon my return!
This is coming from someone who's had to down tools twice mid pour and complete the 1hr round trip to buy more whilst hoping there is still a wet edge to work to upon my return!
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