Epoxy is the most water-resistant of all grouts and is probably one of the most durable, making it a good grout for a ceramic tile kitchen countertop where you will be scrubbing it clean all the time. But there are some tips for working with it.
It comes as a kit with three pouches: the A and B parts of the epoxy resin and a pouch of sand. Mix it exactly as it asks for on the package. Properly mixed it is very thick and a bit hard to work with, and it will get thicken fairly quickly as it begins to set up. Work with small batches and move systematically across the surface, completing the application as you go. Don’t spread it all over and then come back to work it in. Because of its thick consistency, you really have to work it into the joints. So work with a hard rubber spatula that allows you to push it in all directions to get the grout into the joints and the air bubbles out.
As with all epoxy mixes; you can slow down the setting process by working in a colder environment or even by putting your bucket of grout into a bucket of ice. If you are working on a hot day or have sunlight streaming through the window, epoxy grout will set up even faster than it says on the box; block out the sun.
YOU NOT MUST WORK WITH A PARTNER
1> Kastar has two-part, Apart for epoxy resin and cosmetic grade pigment, the B part for hardner. The nozzle with a spiral design can help mix A and B well.
2> Pressing tool kit can help Kastar tile grout going into the grout joint.
3> After grouting, Kastar tile grout is easy to clean.
Kastar epoxy grout is a lot less work to apply than regular grout, but it is just about maintenance-free. And yes you can as you like. Just make sure that the coloring you use is appropriate for the grout you are using floor.