How to Use Self Levelling Compound with Bostik

Bostik's range of floor levelling compounds.

A complete range of floor self-levelling concrete and resurfacing products.

Floor Levelling Compound - A self-levelling compound for finishing rough or uneven concrete floors.

Cempolatex - Latex modified self-levelling sub-floor compound.

Cempolatex Fibreflex - A highly flexible, fibre-reinforced self-levelling compound.

Cempolatex (2 Pack) - A latex subfloor levelling compound for smoothing uneven internal floors.

Cempolay - Self-levelling compound.

Cempolay Deep - Levels up to 50mm deep in one application.

Cempolay Ultra - Ultra-fast self-levelling compound that you can walk on in just 2 hours!

Product Overview:

- Self-levelling compound for finishing rough or uneven concrete floors.

- Provides a sound, smooth level base for most types of floor covering.

- Excellent coverage.

- Light foot traffic in 4 hours fast drying

For interior use

Uses: Concrete floors, asphalt and flooring screeds

==========================================
#Bostik #Screeding #SelfLevellingScreed

🛒 As an Amazon Associate, we earn from qualifying purchases

◾ Out of respect to our channel sponsors and the wide variety of people who watch our videos, we'll remove comments that do not follow common standards of politeness and decency.

[karma]

What about priming the existing floor before leveling?

[mikethedigitaldoctorjarvis]

When i was a floorlayer/carpet fitter, have laid tonnes of latex/screed...it's one of the jobs i really enjoyed doing :-)

[richardpalusaar]

Nice product awareness video. What I would have like to see come after is an in depth series describing and showing the whole process from beginning to end, for each product. By in depth I mean: what pitfalls to watch out for, the examination of the substrate or slap, more in depth explanation of the whole process, per product.

[EppingBlogger]

It would be useful to have a better explanation nof which product to use in different sitiations. Over existing thermoplastic or vinyl tiles, for example and mixed substrates where floors of extensions meet the pre-existing building.

[infraprods]

The reason to use a self leveling is to not get down on your hands and knees and use a trowel. In the US all but the smallest leveling projects are done using a pump. However even for a small or DYI project, it does not make sense to trowel, which defeats the capabilities of the material itself. Smoothers are tools that are specific to floor leveling that look like plaster knives at the end of a broom handle - sometimes they have spacer nubs on the blade to get a predetermined fixed thickness ( not always good for a floor that needs a variable thickness of leveler). For thicknesses up to a 1/4" (6 mm) spiked rollers, also called porcupine rollers, work very well. Much beyond that thickness though the roller may leave dimples in the surface of the leveling compound.
Bostik are tile people trying to figure out self leveling. Tile people are used to troweling everything.

[skodanorman]

I wish I'd watched this before starting my job! Good video, thanks.

[drotkerman]

This man is both terrifying and very knowledgeable.

[macplastering]

Those spiked rollers put a real good shine to the floor nice vid mate

[chrislesser]

Having used Bostik Cempolatex to level our kitchen floor, I can honestly say that self levelling compound is not the solution that many people may think it is. The first application went down reasonably well, but after drying out there were quite a few dips, ridges and lumps all over the floor. I soon found out that to correct the imperfections was not possible and after a few choice words with my wife I decided to lay a second application over the first. Using four 25Kg bags at a time, this turned out to be quite an expensive exercise, so I was keen to follow the instructions precisely. The floor was sealed again with PVA and a friend mixed the compound while I spread it out on the floor. As soon as the compound was poured, I could tell that it wasn't going to happen, as the compound started to "go off" as it hit the floor. The end result after drying was a disgrace. The surface was rippled in places with deep ridges that were worse than the first layer and certainly not usable as a surface to work with. We are now in the process of employing a builder to concrete the whole floor, which we should have done in the first place.
Needles to say, I'll not be using self leveling compound again, well not Bostik anyway, simply because it doesn't. Like many others, I believed that you mix it, pour it, spread it and leave it to dry, hopefully giving a nice even floor. This belief couldn't be further from the truth. Be warned. If you haven't used this product before, employ the services of a builder

[gdfggggg]

I found by trowelling you’ll get a ridge even if it looks smooth when you do it. Apparently, a spiked roller sorts that issue.

[enelikofaatauvaaalo-emile]

This gentleman answered to my problem, you have a brilliant idea.

[TheRich]

What happens if you don't mix the product for long enough in the bucket and then pour product over the area we're was needed thank you

[annstilwell]

Hi Roger, I have a veranda which has been covered in bitumen for years and painted over with silver paint, it has a number of channels in it where it was laid badly, can I use any of these products to fill these. Thank you

I use caulking in my board joints so the leveled won't creep in between , great video

[kophyoarsenal]

How many days should we check for this levelling for SPC Vinyl flooring especially crack?

[leerussell]

I always pilot where I’m screwing otherwise the screws will lift the board making you take it out and back in.Wood clue is the same as PVA.And nails are no good on floors good job Rodger👍🏻

[razu]

Can someone please tell me why you still need to level if it is “self levelling”!

[glynsavery]

Hi, I need to level the wooden floor in the bathroom I've sealed the floor with pva can I put leveling compound on this

[tobycromwell]

Could this be used as a finished floor surface on an outdoor balcony? Can it be sealed/stained/painted?

[adrianlawrence]

Hi, I’ve got a first floor bedroom which has sunk in all directions, probably because it’s either missing noggings or maybe spaced at limits which squeaked until I added more screws, I then have added strategically placed hardboard to bring it up and on top of that cereal packet cardboard to even out anomalies. But still have a gap of about 4 mm . As this is isn’t working what floor levelling compound should I use which won’t be too heavy and make it worse, ie sinking further, or have you any other ideas please. Many thanks Adrian
Ps floor is wood beams /conti board floor panels