““Kerapoxy Grout”. I have used a similar grout before, but probably 20 years ago. Back then it was difficult to use; nothing has changed. I do not doubt that it is waterproof, but the trouble is, it sticks to everything and is very difficult to clean off completely. The instructions say use plenty of water and clean off with “ScotchBrite” abrasive sponge. This is good advice, but I emphasis, it is not easy.
It comes in two parts and has to be mixed together before applying. The instructions assume that the whole pack is to be mixed in one go. My advice is only mix enough to tile for one hour. It will soon start to set solid (often less than an hour, but does depend upon temperature) and become unworkable. Kerapoxy has to be mixed Cement : Resin = 9 : 1. It is supplied in containers in these proportions. There is no advice on how to manage smaller quantities. To mix smaller amounts, shovel out with a stripping or filling knife enough cement to form a square on your mixing board, say about 8cm square and about 2cm thick. With the scraper mark three equally spaced lines across the square, then three lines at right angles to give nine equal sized squares. Scoop out enough resin equal to one of these squares. Spread this across the top of the nine squares like butter and mix thoroughly. This mix will be workable for at least 40minutes. Fill all joints completely, scrapping off any surplus as you go. After about half an hour rub out all the joints with a round wood stick [12 – 25mm] diameter with a smooth rounded end.
Kerapoxy is described as “White”; it is not. It is a pale whitish grey. It does not readily finish with a smooth surface from working with a trowel or a rounded wood stick. To get a smoother finish, rub over all joints with a wet thumb or a wet rounded rubber spatula. Once set, after four days, it can be sanded if so required. You must clean as you go, as once it has set it is very difficult to clean off from the surface of tiles.”
““Kerapoxy Grout”. I have used a similar grout before, but probably 20 years ago. Back then it was difficult to use; nothing has changed. I do not doubt that it is waterproof, but the trouble is, it sticks to everything and is very difficult to clean off completely. The instructions say use plenty of water and clean off with “ScotchBrite” abrasive sponge. This is good advice, but I emphasis, it is not easy.
It comes in two parts and has to be mixed together before applying. The instructions assume that the whole pack is to be mixed in one go. My advice is only mix enough to tile for one hour. It will soon start to set solid (often less than an hour, but does depend upon temperature) and become unworkable. Kerapoxy has to be mixed Cement : Resin = 9 : 1. It is supplied in containers in these proportions. There is no advice on how to manage smaller quantities. To mix smaller amounts, shovel out with a stripping or filling knife enough cement to form a square on your mixing board, say about 8cm square and about 2cm thick. With the scraper mark three equally spaced lines across the square, then three lines at right angles to give nine equal sized squares. Scoop out enough resin equal to one of these squares. Spread this across the top of the nine squares like butter and mix thoroughly. This mix will be workable for at least 40minutes. Fill all joints completely, scrapping off any surplus as you go. After about half an hour rub out all the joints with a round wood stick [12 – 25mm] diameter with a smooth rounded end.
Kerapoxy is described as “White”; it is not. It is a pale whitish grey. It does not readily finish with a smooth surface from working with a trowel or a rounded wood stick. To get a smoother finish, rub over all joints with a wet thumb or a wet rounded rubber spatula. Once set, after four days, it can be sanded if so required. You must clean as you go, as once it has set it is very difficult to clean off from the surface of tiles.”
