EXCELLENT ADHESION: The HRS - heat resistant sealant will provide excellent adhesion, designed for the Sealing or fixing ceramics, glass and metal, sealing other silica based materials. CONVERTS TO ROCK: The HRS - heat resistant sealant will convert itself to rock like hardness when it is exposed to air. The composition is made in a way that it hardens up when exposed to open air. FOR SEALING: Vitcas HRS - heat resistant sealant is best option Sealing or fixing ceramics, glass and metal, sealing other silica based materials. EASY TO USE: Apply using a cartridge gun, HRS - heat resistant sealant comes in a smooth paste, you can directly apply it to the broken area and it will harden up once it comes in contact with open air. APPLICATION METHOD: Before applying the HRS - heat resistant sealant make sure to clean all the dirt and dust, then dampen the area of application and then apply using a cartridge gun.