So what's the main difference between a flooring primer and the builders old favourite SBR? Was at a quote today and the builders had "levelled" the floor with Hilka compound (which on the bag has a compression strength of 27) but was primed with SBR. Had this a few times now. Can SBR act as a floor primer???
Yeah, think so mate, builders use it as a primer on walls before rendering and on floors before screeding.
Think its a slurry mix (runny) bit like real runny latex. It would depend what's going on top. I'd rather do the lot myself
I'd stick to normal floor primer g4l...I'm personally not a big fan of SBR, although it's never done me wrong like. It just gives me that uncomfortable feeling..I've used SBR to prime before installing insulation boards with flexi adhesive on a good few jobs and I've not been asked back lol Still, stick to your norm mate..
It's a plasticiser and primer for cement based mixes but I assume the screeds we use are much more complex than sand/cement/plaster and perform much better with a purpose manufactured primer. The thing is builder's merchant stock screeds but never the primer to go with them.