AquaFix SPC: Smart Tile Series - OnyxOnyx captures the rich, layered look of natural stone in a format that's actually practical to live with. Deep, dark tones with organic variation it reads as sophisticated and grounded, not cold and sterile the way some dark tiles can. Built on an SPC (Stone Plastic Composite) core, Onyx is completely waterproof and dimensionally stable. It won't expand and contract with temperature swings, which makes it ideal for slab on grade installation in