Cheapest Tyrolean-type finish over existing painter render?

[Benjamin Whitehouse]

Hi, I have a patchy render on the front of my house. It is sound but shows lots of old repairs etc. It is painted.
I would like to try a tyrolean style of finish with tyrolean gun, as cheaply as possible. I would prefer to pre-dye the finish white if possible to avoid having to paint it.
- What is the cheapest way to prime?
- What is the cheapest finish?

Thanks
 

[nod]

You would have to remove the paint first

Tyrolean won’t stick to paint 

 

[Benjamin Whitehouse]

Ok, I was hoping there might be a primer I can apply over the paint to provide a key: cement, microgobetis bond and a handful of and sand with some water, mixed to a slurry and applied with a roller, for example.

What would be the best way to remove the paint? It does not scrape off easily.

[markc]

Sandblasting or needle gun for smaller areas, no easy way to remove paint from masonry or render