SBR modified site mix render

[FreeD]

Parex say you can add SBR to Monorex to modify it so it will bond to engineering bricks etc...can you do the same with a standard 4-1 site mix? if so what's the ratio sbr/water?

Thanks X

 

[CeeVee]

I thought that was what microgobetis was for on parex?
Re. S/C not sure exactly but I do know the tub will have instructions that tell you how much to add.

 

[FreeD]

I want a mix for dubbing out.

 

[FreeD]

And I don't want to Rend Aid - (Dub out) OCR - Rend Aid - OCR

Just want to Dub out - Rend Aid (with mesh) - OCR (10mm beads)

 

[malc]

i would say your ok to sbr the brickwork, and add sbr to the render mix on flettons or brick with decent suction. but with engineering bricks you will have no suction and your dubbing out coat will slump.