Penetrating stone sealer that forms a barrier between the pores of natural stone that include granite, marble, travertine. Provides protection for stone and granite bench tops. Prevents stains while preserving the stone’s natural appearance. Treated stone surfaces become water repellent. Creates a barrier that provides protection against chemical attack, deterioration and contamination. Invisible and non film forming (won't peel or flake). Suitable for use on both internal and external surfaces.