Having removed a "cemented-in" toilet and vinyl tiles from a screeded
floor I'm tempted to use levelling compound to get a good surface for
vinyl flooring. The needed thickness will vary from about 6mm to 2mm ...
I'll PVA first but are there any problems with adherence when it's so thin?

I guess an alternative might be to repair the damaged bits of screed
with sand/cement and then cover the floor with a sheet of oiled
hardboard or thin marine ply before the vinyl ... any thoughts?

On 23/07/14 22:10, wrote:
Having removed a "cemented-in" toilet and vinyl tiles from a screeded
floor I'm tempted to use levelling compound to get a good surface for
vinyl flooring. The needed thickness will vary from about 6mm to 2mm ...
I'll PVA first but are there any problems with adherence when it's so thin?


Having done this in 3 rooms, I will recommend a specific product. It's
harder to get but it's not much more expensive than the crap sold in the
sheds.

http://www.yours4floors.co.uk/p/F-BALL-Stopgap-300-Hd/

Follow the instructions exactly and use the max permitted water (and not
a drop more). Mix with a whisk in a drill.

Prepare the floor with

http://www.yours4floors.co.uk/p/F-BALL-Stopgap-P131/

This will get the adhesion and stop the water being sucked out.

http://www.f-ball.co.uk/ has the full instructions for download.


From experience, whilst it will feather down to a mm or two, it levels
better if you can apply 3mm or more depth in one hit.

Keeping it agile with a spiked roller will help a lot. You must block
the doorways and anywhere else it can go as it is very mobile - I had it
"bleed" through a 3mm gap I'd failed to block properly first time I used it.

Used correctly it's amazing stuff. Sets like iron in less than an hour
(working time is about 20-25 minutes).

Last room I did was 20m2 and I put down 5 bags worth at once (with help)
and got the final floor within 2mm level.

On 23/07/2014 22:10, wrote:
Having removed a "cemented-in" toilet and vinyl tiles from a screeded
floor I'm tempted to use levelling compound to get a good surface for
vinyl flooring. The needed thickness will vary from about 6mm to 2mm ...
I'll PVA first but are there any problems with adherence when it's so thin?

I guess an alternative might be to repair the damaged bits of screed
with sand/cement and then cover the floor with a sheet of oiled
hardboard or thin marine ply before the vinyl ... any thoughts?

I used a fine surface filler. The guy who laid the vinyl said they do
the same. Use a 2 pack filler like Toolstation ProFil if you're in a hurry