Self-leveling over SBR.ed concrete?
 

I've just poured a lot of diluted SBR over the concrete in the office floor
as it was clearly not put down right and patches were breaking up [1].

Self-leveling over SBR.ed concrete?
 

"Paul D Smith" wrote in message
...
I've just poured a lot of diluted SBR over the concrete in the office
floor as it was clearly not put down right and patches were breaking up
[1].

Curse you Microsoft - managed to send too early! Now where was I?

Right, done the SBR, filling some small holes tonight, but whilst working on
the floor it was clear that every expense had been spared when levelling it.
It's not terrible but it's clear why the carpet was suffering in places.

So, self-levelling compound all over? But will it bond to the SBR? Should
I give the floor a quick "paint" with some SBR beforehand or should I add
SBR to the levelling compound to help it bond?

If you've done this before, and it worked, all suggestions appreciated.

Thanks,
Paul DS

[1] For anyone doing this, the NG recommended a 1:1 SBR/water mix. I poured
almost 5+5litres over 6m2 of floor - in some places it pooled immediately
but in others the "concrete" seemed more like "sponge bob square pants"
requiring me to pour, and pour, and pour again. So my tip is buy a lot more
SBR than you think and return any unopened containers which you don't use.

Self-leveling over SBR.ed concrete?
 

Paul D Smith wrote:

"Paul D Smith" wrote in message
...
I've just poured a lot of diluted SBR over the concrete in the office
floor as it was clearly not put down right and patches were breaking up
[1].

Curse you Microsoft - managed to send too early! Now where was I?

Right, done the SBR, filling some small holes tonight, but whilst working
on the floor it was clear that every expense had been spared when
levelling it. It's not terrible but it's clear why the carpet was
suffering in places.

So, self-levelling compound all over? But will it bond to the SBR?
Should I give the floor a quick "paint" with some SBR beforehand or should
I add SBR to the levelling compound to help it bond?

If you've done this before, and it worked, all suggestions appreciated.

Yes - I've done exactly that. Soaked a load of soft crap screed with several
gallons of ditute 1:1 SBR, then SBR modified screed patches for the bits I
had to cut out (no longer attached to concrete below).

Then levelling compound over the top.

No - I did not re-SBR it prior to applying (couple of weeks later IIRC) and
the compound stuck fast IME.

I would not add SBR to the compound as you don't know its chemical makeup
and it may bugger the properties. But I don't see it would do any harm to
paint dilute SBR down 30 mins before pouring and apply compound as soon as
it's just dry (ie no white puddles).

Thanks,
Paul DS

[1] For anyone doing this, the NG recommended a 1:1 SBR/water mix. I
[poured
almost 5+5litres over 6m2 of floor - in some places it pooled immediately
but in others the "concrete" seemed more like "sponge bob square pants"
requiring me to pour, and pour, and pour again.

Mine did that. Brown screed that seemed to be 95% plaster's sand and 5%
"misc".

So my tip is buy a lot
more SBR than you think and return any unopened containers which you don't
use.

I bought a 25l mega bottle on the internet for £75 - very well worth it:

http://www.permagard.co.uk/sbr-bonding-
additive.html?gclid=CLqinISV_KwCFcwMtAodPV48Rw

BTW - what compound are you using, because if you've not bought it, I
totally recommend F Ball's Stopgap 300 (and you'll need a bottle of the
green neoprene primer).

Cheers

Tim

--
Tim Watts

Self-leveling over SBR.ed concrete?
 

Sending too soon, are you using a laptop with one of those pesky pads on
it by any chance?
Brian

--
Brian Gaff -
Note:- In order to reduce spam, any email without 'Brian Gaff'
in the display name may be lost.
Blind user, so no pictures please!
"Paul D Smith" wrote in message
...
I've just poured a lot of diluted SBR over the concrete in the office
floor as it was clearly not put down right and patches were breaking up
[1].

Self-leveling over SBR.ed concrete?
 

"Brian Gaff" wrote in message
...
Sending too soon, are you using a laptop with one of those pesky pads on
it by any chance?
Brian

No, just some stubby fingers with minds of their own. But my daughter is
currently learning how to swear - sorry I mean use one of those pesky pads.
I get on alright with them but my daughter tends to rest her hand on the
buttons whilst using it so the pad then does unexpected things.

Paul DS.

Self-leveling over SBR.ed concrete?
 

Paul D Smith wrote:
I've just poured a lot of diluted SBR over the concrete in the office
floor as it was clearly not put down right and patches were breaking up
[1].



SBR Sequencing Batch Reactor
SBR Spectral Band Replication (Coding Technologies)
SBR Subaru
SBR Steel Belted Radius
SBR Stone Brothers Racing
SBR Space-Based Radar
SBR Sportsbook Review (website)
SBR Skills-Based Routing
SBR Scarff-Bloom-Richardson (prognostic factor in breast cancer)
SBR Statistical Bit Rate
SBR Shooting and Bouncing Ray (cavity analysis method)
SBR Sveriges Biodlares Riksförbund (Swedish: Swedish Beekeepers Association)
SBR Short Barrel Rifle
SBR Serum Bilirubin
SBR Saturable Bragg Reflector
SBR Special Boat Squadron (US Navy designation)
SBR Sit Back & Relax
SBR Stolen Base Runs (baseball statistic)
SBR Small Business Reserve Program (Maryland)
SBR Silver Birch Ranch
SBR Shiny Black Rubber
SBR Signal Bias Removal
SBR Store Bought Rebels (band)
SBR Subsystem-Backup-Routing
SBR Summary Billing Record
SBR Selection Board Results
SBR Schotterbettreinigungsmaschine (German)
SBR Speaker Back Right
SBR Silver-Bronze Medal
SBR Stabilized Breakdown Rate
SBR Service Business Relation (Fujitsu)
SBR somatosensory blink response
SBR Steel Bulb Rectifier
SBR Society for Biological Rhythm

Self-leveling over SBR.ed concrete?
 

F Murtz wrote:

Paul D Smith wrote:

I've just poured a lot of diluted SBR over the concrete in the office
floor as it was clearly not put down right and patches were breaking up

SBR

Styrene Butadiene Rubber