What sand do I mix with lime putty plaster for finish coat?

[StephenStephen]

I'm about to put the finishing coat of lime and sand on the internal walls, over lime hemp plaster.

Can I use standard sharp sand from a builders merchant to mix with the putty?
I'm sure the putty supplier will answer this when I go there tomorrow, but I'd prefer to be just a little less ignorant when I have that conversation!
(I'm not looking for an utterly smooth finish, and will be limewashing.)

Cheers, Stephen

 

[StephenStephen]

Just to update - kiln dried sand is what's used and works well.

 

[Wayners]

I'd of thought building sand also.
Sharpe sand is gritty with stones that may drag.

 

[StephenStephen]

I'd of thought building sand also.
Sharpe sand is gritty with stones that may drag.

Kiln dried sand is very fine, which is what I needed for the top coat, though I don't understand why it needs to be kiln dried!

 

[JohnD]

That's interesting.

My previous house had original 1905 lime plaster and the finish was a skim coat without sand, polished very smooth.