[Strawbale] any experience with oil, wax,soap, stucco sealers?

[Leanne Rellstab]

All of my walls have lime plaster, inside and out.  

On the inside, I have beautiful living room walls where we put the color into the plaster (as opposed to a lime wash), but then we had to sponge the walls because of cracks, which of corse, brought out the sand.  Now, I would like to set the sand into the plaster, and have smoother walls.  The sand is coming off the walls when you brush up against them, and I'd like a more "formal" look.  We used a 30 grit sand in the plaster.  Burnishing with water and a trowel cause really ugly black lines on the walls (I've tried both metal and plastic trowels).  We also spray on potasium silicate on the some of the walls.  This is a great sealer/durability product, but it doesn't solve my issues in this case.

I was considering using any of the following products, and wondered if any one had any experience with them.  My main concern is about the permiability of my walls.  Also, would they change the color?  If I buff them in, what will that do to the sand?

1.  Bio Shield hard oil #9.

2.  Raw linseed oil.  

3.  Frescatti Natural Black Soap.

4.  OSMO Polyx oil.

5.  Bio Shield Hardwax #32.  

6.  Olivetti Stucco and Lime Paint sealer.

Any input or other suggestions would be greatly appreciated as always.

Thanks,

Leanne