[mieno]

Thanks for the tips.
Jim, just to clarify that a traditional stucco of 1 Portland : 1 Hydrated Lime : 2.5 to 4 Sand will be too hard / brittle right?
I will need to replace the Portland with a White Cement with a higher lime content. Unfortunately our white / ivory cements here are described as white portland and I can't find any reference to type N.
Would a traditional lime plaster (just lime and sand) work if the oven was sheltered? These seem to be used on earth/clay ovens that need to breathe.

Thanks