I need to lay a 3-4mm smoothing underlayment on top of a screed floor prior
to fixing vinyl tiles (Karndean). Any tips to ensure a smooth even surface?
I thought either;
1) Just mix it up and pour it on; it's really easy; just do it! or
2) Use an 8mm notched adhesive spreader thing. This would ensure that the
underlayment is applied to the correct thickness, then I could smooth over
any ridges that didn't self-level.

It's going to be about 100kg of mix, and it'll be mixed in several loads. Is
there anything I should be aware of when applying a new load to the edge of
the existing stuff?

Thanks all.

Grumps wrote:
I need to lay a 3-4mm smoothing underlayment on top of a screed floor prior
to fixing vinyl tiles (Karndean). Any tips to ensure a smooth even surface?

Personally, I'd pay someone to do this job, who has done
it for a while before. The technique seems to be to mix
the stuff up and lay it on bloody fast, using a float
to distribute it quickly to an approximatly even
thickness, stopping after a few seconds, well before the
stuff's taken any sort of set.

"Chris Bacon" wrote in message
...
Grumps wrote:
I need to lay a 3-4mm smoothing underlayment on top of a screed floor
prior to fixing vinyl tiles (Karndean). Any tips to ensure a smooth even
surface?

Personally, I'd pay someone to do this job, who has done
it for a while before. The technique seems to be to mix
the stuff up and lay it on bloody fast, using a float
to distribute it quickly to an approximatly even
thickness, stopping after a few seconds, well before the
stuff's taken any sort of set.

I watched some men flatten levelling compound on a huge concrete area at
work prior to vinyl flooring. They mixed from what looked like a continous
supply mixer, but more interestingly spread it out using like a broom with
nails for the brush bit and had boots with spikes on to they could walk
around on the area under work. Also put tape covering on walls, as they
splashed a bit and cloths of floor areas to protect them, unlike the clown
the did our conservatory floor who mixed on our patio leaving splashed blobs
on both patio and wall that were a b*gger to get off.