Lime Plaster and Wash
Links for Recipes
- 5 parts Hydrated lime 
- 1 part Salt
- 5 parts water (add more water if cracking appears)
- 5 gallon paint buckets
- Coating brushes 
- Mixer (either manual, mash-potato style or mixer attachment for power drill)
- a water mister/sprayer can be used to go over earth plaster cracks. these can be rubbed out with a wet rag before lime wash is applied.
if cracking occurs, more water can be used. it may also be worth experimenting with large grain sand if a thicker mix is desired. generally adding large grain sand to mix can reduce shrinkage. for example in clay plaster, 100% clay will shrink after drying. but using 15% - 30% clay and the rest large grain sand or soil can reduce shrinkage.