painted rendagrip on a plain wall 2 days ago,looking at it i got no confidence its going to adhere to it and stay on could i use sbr slurry over the rendagrip to give a better key,if it was a small wall i would take a chance but this wall is 40 sq ms and exposed to the weather,thanks


TPF Special Forces
I have used it and it works. How the render sticks I dont know. But it does.

Parex sell something similar called Microgobetis and sells a lot of it. You can spray 15mm straight on top of it and get their 10 year warranty.

If I do a sand and cement job now I Rendagrip it. More so because of my tennis elbow. I can slap the gobbo on without the pull of suction and have time to rule it flat.