Struggling to find a solution..... But came up with this on the web.
"...No authoritative bodies recommend abrasive techniques on old London bricks - both sand blasting and chipping damage or remove the hard outside layer of the brick, leaving exposed the soft, extremely porous middle. This will erode quickly and absorb any moisture causing further problems.
However, there is a good case for grinding; if done carefully it will cause a minimal loss of brick. This process makes re-pointing easier as the brick arrises (corners) will be made sharper so that joints can be well-filled without spreading around the bricks..."
That is paint - I've done Snowcem back in the day(with my late Dad) Lovely smell to the powder as we mixed it but it probably didn't do our lungs much good specially combined with Empire St. Julian baccy - happy days.
Snowcem paint is mostly cement and has a fine texture, purely Matt finish. The images look more like a coating with polymer content. I mostly apply Snowcem with a paint trowel which looks great but does not has no fine stone like the specks I your pictures. Obviously cannot roll it. Spraying is good.
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