has anybody used everbuild rendagrip and would they recommend it just going to start a job next week rendering over face brick was going to use sbr/cement slurry for key but seen rendagrip for sale on r&j builders hardware web site so I thought if it was ok I would rather use that, paint it on one day render the next or would I be better off with sbr/cement slurry at least I know the rendering wont come off any thoughts anybody