Protective sealant for new swimming pool coping stones

Hello all

I was just seeking some help from anyone that can recommend a type of sealant  I could use to put on my new swimming pool coping stones. The purpose being to help rain/tap water run off without staining and even strengthen the stones if possible as my garden either side of the pool is narrow and I regularly have to walk on them to get front and back. Live in Los Alcazares, Murcia although assume Leroy Merlin would be a suitable place to buy such a product.

As always any help would be appreciated

Paul

If you do decide to apply a product, take care that it does not leave the surface slippery when wet. 

I used a silicon based product to seal (with a shine)  the tiles on my terrace. It was recommended by Pinturas Andalucía.  It never dried completely, although not wet to the touch, but it was 'sticky' which meant dust adhered to the tiles, especially in the 'non slip' indentations, which was impossible to remove with conventional methods

I had representatives from  Pinturas Andalucía and the sealant manufacturer  at my place several times, and despite all the removal products they supplied (free) I finally had to buy a power washer to remove, 100%, of the sealant.  Quite  a time consuming job with 100m2 of terrace.  It is now sealant free, albeit dull !