Concrete panels

[claremont]

Morning,
I’ve got about 100 m2 of Plain face render to do onto pre cast concrete panels around garden walls.
I’m gonna use an ocr for top coat but wondered If there was a spec for this?
was gonna use render grip to start but do I need base coat and mesh also?
thanks

 

[owls]

It depends on what the type of concrete panels are,stick a picture up, I'd be looking at some kind of adhesive as a base rather than an ocr, the possible movement of the panels would be my issue with it, mesh wouldn't be enough.

 

[claremont]

Thanks Owls,
I haven’t got any pics to hand sorry. The largest wall is 15 x 1.7 and the rest are small areas. I meant top coat with ocr sorry didn’t explain very well!!
Do you think pre grit and rend aid would do the job?

 

[owls]

Bit hard to say without seeing it, If you use an adhesive it wouldn't need any primer. But Rend aids good stuff and you wouldn't need a primer. I'd look at thin coat system as a whole though it's lighter and a lot more flexible.

 

[claremont]

Ok thanks for the info.

 

[Rigsby]

As Owls has said rend aid and ocr but maybe expansion beads on any joints and make sure your substrate is clean.

Garden wall are usually troublesome so avoid any warranty.