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-   -   Failing Self-Leveling Compound? (http://www.diychatroom.com/f5/failing-self-leveling-compound-150686/)

Toilet Bowl 07-18-2012 10:40 AM

Failing Self-Leveling Compound?
 
Hi, I recently poured some SLC in my bathroom on top of old mortar which is on top of concrete for the first time and failed miserably.


first off I mixed 2 batches which I know is a mistake but I didnt want to commit to a whole bag and not mix it properly. The first half I mixed 2 days ago has dried perfectly to a dark grey.

the half I mixed yesterday was a complete mess, the compound separated and didnt work basically, its a light grey shown in the picture below.


I would like to know if I can pour another batch on top of the failed SLC. It IS dry, and has a slight dusty feel to it. It is also very thin (you can still see the marks from the old mortar). Will it eventually crack up?

http://i49.tinypic.com/2dltba1.jpg

oh'mike 07-18-2012 10:45 AM

Did you prime the floor before adding the SLC?

You blew the mixture---if one batch looked good and the next odd---must have done something different---

What brand?

Is the bad batch bonded well to the old floor?

You might be all right simply priming the bad mix and adding another layer---More info needed before I would say yes to that---

Toilet Bowl 07-18-2012 10:57 AM

Quote:

Originally Posted by oh'mike (Post 968760)
Did you prime the floor before adding the SLC?

You blew the mixture---if one batch looked good and the next odd---must have done something different---

What brand?

Is the bad batch bonded well to the old floor?

You might be all right simply priming the bad mix and adding another layer---More info needed before I would say yes to that---

Hi, mike.

I used Henry 565. I just tried to chip some off and yes its bonded well, I didnt prime cause the mortar is very rough and I figured it would stick no problem


1 thing to note is that in the second mix, there was a bunch of compound sunk to the bottom of the bucket.

oh'mike 07-18-2012 11:46 AM

Sounds like you can add another layer without issue---Henry makes very trusted products,although I have never used that one--


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