Self Levelling Compound issue (pictures)

[JordanLincs]

So this is my first time using SLC, it's Mapei ULTRAPLAN 3240. Once I was coming to the end of the mix I notice a sludge at the bottom, I assume because I've mixed too fast *Facepalm. I mixed half a 25kg bag. Any advice would be greatly appreciated. I'm worried the mixed might be too wet now...

 

[GoneGuy]

When mixing slc always mix the whole bag,
Follow the instructions on the bag to how much water you need and how long to mix it for.
As you use the mixer dip it up and down in the bucket to move the material around to mix it

 

[JordanLincs]

Lesson learned. I probably should have mixed with a smaller whisk too. Is this mix likely to fail?

 

[Qwerty]

Lesson learned. I probably should have mixed with a smaller whisk too. Is this mix likely to fail?

Knowing that SLC very well I would say it wont likely fail but it certainly wont be as strong a mix as if the whole bag was mixed with a paddle mixer. I presume it was very wet when your poured it?

 

[JordanLincs]

Knowing that SLC very well I would say it wont likely fail but it certainly wont be as strong a mix as if the whole bag was mixed with a paddle mixer. I presume it was very wet when your poured it?

Not sure what very wet is as this is my first time, it seemed fairly thick. I noticed the top layer of SLC was runny and there was a sludge underneath the top web layer

 

[Qwerty]

You need to mix the aggregate and fibres as the whole bag with the correct amount (ratio) of water to avoid that happening

 

[Flintstone]

Time will tell really if it sets right, if it was too wet it could have a weak layer on the top once set

 

[LM]

Did you prime the floor with eco prime t?

 

[LM]

Why haven’t you took the toilet out.

 

[JordanLincs]

Why haven’t you took the toilet out.

Ermmm facepalm. Note to self, always take the toilet out

 

[JordanLincs]

Did you prime the floor with eco prime t?

I used mapei primer G, is this incorrect@

 

[Spare Tool]

Why haven’t you took the toilet out.

Well it ain't coming out now....or ever!!

 

[JordanLincs]

Well it ain't coming out now....or ever!!

You got that right! Good job it's family and bathroom is gonna be demolished.

 

[Boggs]

I’ve never use this Mapei slc before, but it does look a bit cloudy, like it’s not mixed right.

As said above always mix the whole bag, but I tend to hold back a handful in the bag as it just allows the mix to be a bit better at flowing without affecting its strength.

 

[JordanLincs]

I’ve never use this Mapei slc before, but it does look a bit cloudy, like it’s not mixed right.

As said above always mix the whole bag, but I tend to hold back a handful in the bag as it just allows the mix to be a bit better at flowing without affecting its strength.

Appreciate your advice, thankyou.

Although, I was very careful when halfing the bag, I had weighing scales. Still recommend to use the whole bag? Do you use the whole bag as the fibres may have settled at the bottom?

 

[JordanLincs]

Let the games begin! Any ideas why this has happened?

 

[Bond]

 

[Boggs]

Yep.

The thing with slc is not to worry about it, follow the instructions on the bag and don’t play around with it.

Mix, pour and smooth out with a spiked roller.

 

[Bond]

Done the above floor yesterday with Mapei ultraplan perhaps the best slc I’ve used, was able to walk onto this floor without marking it in 4 hours.
The residue in your backed looked a bit off colour.

 

[Bond]

The residue in your bucket.

 

[Boggs]

That’s the fibres.

What did you mix it with, and how long for?

 

[JordanLincs]

That’s the fibres.

What did you mix it with, and how long for?

I can see it's the fibres, just curious why it's dried so quickly in that area in particular. Two coats of primer needed?

I mixed with clean water as stated on the packaging

I mixed 2mins at a guess, until the right texture, I let it stand for a few mins and gave it another quick mix.

I did mix at very high speed which I now realise the bag says mix slowly...

 

[Boggs]

But if you only mixed half the bag then the fibre to aggregate ratio is no longer correct meaning you probably have more fibres in the floor than aggregate to set it.

To be honest it doesn’t matter how long it was mixed for or how fast or slow it was not going to be right.

 

[JordanLincs]

But if you only mixed half the bag then the fibre to aggregate ratio is no longer correct meaning you probably have more fibres in the floor than aggregate to set it.

To be honest it doesn’t matter how long it was mixed for or how fast or slow it was not going to be right.

Okay thanks

 

[Old Mod]

Okay thanks

Don’t loose heart, wait until it’s set, you’ll know if it hasn’t worked.

 

[JordanLincs]

Don’t loose heart, wait until it’s set, you’ll know if it hasn’t worked.

Oh I haven't, I'm excited to see what it's gonna be like in the morning. Just trying to learn from my mistakes

The one think that won't change by the morning is that dry oatch near the door frame.

 

[Old Mod]

Kool.
Sometimes things get over analysed.
Hope it works out.

 

[LM]

I mix part bags all the time. Experience tells you if it’s too wet or too dry. Did you let the mix stand long in the bucket? It looks fine to me on the floor. With renovation screed I always use eco prime t although it states primer g is ok in certain circumstances.
As Marc says don’t worry about it tonight if when you next walk on it it’s solid enough and a light poke with a scraper can’t do too much damage to it it’ll be fine.
What tiles are you laying around the toilet?

 

[JordanLincs]

To my knowledge I only let it stand for a few minutes.

Im bit confused as to the difference between Primer G and Eco Prim T.

I'm using 330x330 gray ceramic tiles

 

[LM]

Eco prime will help it stick better to the floor as it’s a water based compound. That’s not to say it won’t stick with primer g, I think you’ll be fine.