hello my name is Robert Keller I am the owner of the company which finishes and renovates buildings I know that professional construction work requires both the right working technique and best products for many years I've been relying on using services products in my construction and renovation projects services portfolio is full of advanced and easy to use solutions each time I have used serices products I was very happy with the final result now service it offers even more that is the professional support for anyone wants to achieve perfect results watch our short video that will help you to work fast and efficiently in the past few years natural stones have become increasingly popular as wall and floor coverings when laying this material there are two tricky factors to watch out for one is the danger of moisture penetration the other is choosing too dark color of the mortar bed to avoid problems stick to a few rules always use products dedicated to natural stones choose the motor bed of the lighter color as a dark one may change the natural shade of this term this is especially important when you're using light colored stone with very delicate stones it is worth to perform a quick test to check if the motor or the ground does not cause the stones discoloration finally use special products for permanent elastic sealing of expansion joints of course such as it has the right high quality products you need for each step of a natural stone installation preparation make sure that all substrates are level dry and free from dirt and dust to strengthen the surface and reduce the absorbency of the substrate apply a suitable primer for the walls we recommend sir acids see t17 deeply penetrating primer and CN 94 powerful floor primer for the floor apply and spread it with a paint brush or a roller to avoid the formation of puddles when the substrate has dried you may start laying the tiles tiling for tiling natural stones use a mortar specifically designed for this purpose we recommend serices cm 15 marble with a very light color with very delicate stones do a trial application before to check the suitability of the products when preparing the mortar leave it to mature for approximately 5 minutes and then stir again mark the area where the bottom row of your tiles will be installed this row will be done later after the tiles on the floor are fixed apply CM 15 marble mortar on the wall using a suitable notched trowel place the tiles pressing them carefully into the motor the motor coverage in other words the contact area at the back of the tile must be at least 65% always start from the bottom of your tiling area working your way up the wall keep an equal distance between tiles and make sure they are level for fixing natural stone tiles on your floor use CM 15 mortar again although this time the mass doesn't need to be as dense as for the walls apply the mortar with a suitable notched trowel and then place the tiles pressing them into the mortar check the tiles with a spirit level to make sure they are laid evenly when the adhesive has dried and the tiled floor is ready to step on apply the missing tiles on the bottom row of the wall grouting when the tile adhesive is sufficiently set and the joints have been cleared of any remaining bits of mortar you may start grouting choose the flexible grout solicit seee forty aqua static which is suitable for grouting natural stone tiles remember to use the correct mixing ratio with water as defined on the packaging and observe a three-minute maturing time during mixing completely fill the joints after the grout has started to set which can be tested with a finger emulsify the tiles and clean the area by wiping it with a sponge and little water in circular movements the second cleaning is best done with diagonal movements and clean water then move to the floor after the second cleaning left the grout dry completely for aftercare cleaning recommended chemical agents can be used after seven days enjoy your natural stone tiles they look perfect it is worth doing the job as if I was doing it for myself prime the surface fix the tiles grout the joints