Holes in Self levelling compound?

Hi. My builder was apparently self leveled the new extension floor today to match the height of the existing floor level. .
Originally we were to have the 50mm screed to bring it up to the floor level but we were more or less at the height of the existing apart from being alot lower at the bifolds, so he said he was going to latex it. I've come home to bags of no nonsense self level screed 0-10mm that he has mixed with water. So please tell me if I'm wrong but I'm thinking this is not latex!? But my other issue is that it has alot.... Alot of holes in it and its not level. And also doesn't actually join the original house. I will upload pictures.....
I can't get in touch with my builder right now but is this how it's supposed to look with holes? Thanks

Where is your permemeter insulation?

Holes are due to air bubbles. usually you can prevent that with a special roller used on the floor when its wet. I've got the same in my garage however it doesn't really affect anything, especially if flooring is going over that.

Some of the no-nonsense leveller is latex, some is cement based if I recall. And whenever I’ve used it it’s not bad stuff. Can’t see any issues in any case, seen far worse!

My understanding is that all self leveller is latex based as the latex gives it the self-levelling properties. However, some products come with the latex as liquid to be added and others with the latex already in the powder and water is added.

The pinholes are either a lack of priming of the base, mixing method or application technique or all of them. Basically a poor quality issue rather than a performance issue as long as the pinholes are relatively few and the coating appears sound and not hollow when dry

Surface bubbles can be sanded flat and large holes re-filled

Lp123 said:

not level

Click to expand...

If your floor ran out say 25mm in 3m it will still run out 25mm in 3m after the floor levelling compound has been applied.
What these compounds do is transform a rough bumpy floor into one that is less so. They don't actually self level either.

A lot of builders will use the term 'Latex' when they really just mean self smoothing compound. Latex is normally specified for floors that are prone to movement - like suspended timber floors etc. On a solid concrete floor it shouldn't make any difference whether it's latex or cement based.