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For most indoor applications, such as floors, walls, kitchen countertops, and bathrooms, sintered stone slab does not require sealing at all. Its waterproof and stain-resistant properties stem from its inherent structure, not from a surface coating.

Sintered Stone Slab is not simply "fake stone" in the truest sense; it is a high-performance artificial rock slab manufactured through a high-tech process. It is formed by sintering natural mineral raw materials (such as quartz powder, feldspar, silica, and natural clay) at temperatures exceeding 1200°C under high pressure.

Identifying sintered stone slab by appearance: Authentic sintered stone slab has a texture deep within the slab and will not disappear due to cutting or wear. Floors with overly regular or repetitive textures are likely imitations with decals or inkjet printing.

If cracks in a sintered stone slab are limited to the surface or shallow, caulking, resin, or specialized repair materials can restore the surface smoothness and aesthetics. Deep cracks that penetrate the slab require structural reinforcement techniques; otherwise, surface treatment alone cannot guarantee long-term durability.