Ed Sirett wrote:

Hi all,

Does anyone know if there is an off-the-shelf product for treating/coating
some rather smooth and slippery flag stones. They are getting very
hazardous in the wet weather. I beleive they are york-stone if that make
a difference.

The type of product I imagine might help would consist of a fine gritty
shingle and an adhesive.

TIA

sand blast or pressure wash them.

Or even just use patio cleaner and a hose.