Firstly let‘s boil the water to 100℃(Degrees Celsius) in an electromagnetic oven, then put the sample of Kastar Ceramic Tile Sealer in it for more than 30 minutes, now turn off the oven, took out Kastar sample. We can see that the sample did not fade, did not deform, which proofs that Kastar has wonderful high-temperature resistance effect and it will have great performance for houses equipped with the floor-heating system.