I have done this.
1. Spackle all puctures in the wall surface and sand flat all walls.
2. Damp sponge clean all walls and let dry for 24 hours so as not to have moisture under your paint and cause bubbling.
3. primer your surface to ensure there is a layer over your drywall before you paint. Drywall has a tendency to soak in paint and you will end up buy more paint than necessary.
4. Make sure the granules you picked are not showing through your paint color. (Take a box lid and paint a little on it and let it dry. The reason I say this is that I was going to try to go the short cut route with the granules with sand and pale yellow... not a good idea!) As for mixing your granules into the paint, I think wherever you purchase the paint can shake it for you so that you get an even mix.
5. Tape, drop cloth, face mask, and if you are latex sensitive, gloves.
6. Pick a slightly furry or spongy roller and go to town in V's on the wall until all is covered. Only use paint brushes when necessary to cut into small areas. Brushes and texture don't do well together unless you are looking for a drag technique.
7. Always clean your brushes and rollers thoroughly with dish soap and water between coats and make sure they are dry before using again.
Things to remember:
- Don't get discouraged with the first coat. The first coat is always ugly... it gets better with the second and sometimes third coat.
- I always suggest with this type of paint to let it set for at least 12 hours before adding another coat. Even if the manufacturer says less time, you never know with textured paint how much is under each bump and it needs to fully dry or it will cause bubbles.
- While painting, don't go back over an area if you think it looks bad. Let it set and go back over it later. Textured paint and primer has a tendency to come back up if it is still sticky and you try to go over it with more. Worse comes to worse, you just sand that area a little bit to smooth it and add another coat.
I hope this helps!
Jodi