Whether you are wanting to just touch up, patch or white wash an existing stucco surface or use just as stucco, this is a simple mix to use. I have used this stucco mix to roll on existing stucco with extra fluffy paint rollers and then used the thicker mix at the bottom of my 5 gallon bucket to patch with. You can make it thin or thick depending on your needs, just add more or less water. Here's the simple white stucco mix recipe:
How To Make Stucco
1 Part Hydrated Lime
2 Parts White Portland Cement
3 Parts White Sand
* Water