Oil & grease on slate appear as darkened patches, blotchy areas, or permanently deepened color in localized sections of the stone. Because slate is layered and often porous, oil can penetrate below the surface and alter its appearance. What’s Happening Slate is a metamorphic stone with natural cleavage planes and variable density. Some slate varieties are…
Oil & grease on quartzite appear as darkened areas, blotchy patches, or spots that seem to deepen the color of the stone. Although quartzite is denser than many natural stones, it can still absorb oil under certain conditions. What’s Happening Quartzite is primarily composed of quartz, which is relatively dense and resistant to staining. However, quartzite…
Oil & grease on grout appear as darkened lines or blotchy discoloration between tiles. Because grout is porous and absorbent, oil-based substances can penetrate below the surface and create persistent staining. What’s Happening Grout is a cement-based material with an open pore structure. Unlike most tile surfaces, grout readily absorbs liquids — especially oil and grease….
Oil & grease on concrete appear as darkened patches or blotchy stains caused by absorption into the surface. Because concrete is porous, oil-based substances can penetrate below the surface and create long-lasting discoloration. What’s Happening Concrete is made from cement and aggregate and contains microscopic pores throughout the surface. When oil or grease sits on concrete,…
Oil & grease on terrazzo appear as darkened patches or blotchy areas, often in kitchens, food service spaces, or high-traffic commercial environments. Because terrazzo contains a binder matrix, oil can affect the surface differently depending on whether it is cement-based or epoxy-based. What’s Happening Terrazzo is composed of stone or marble chips set within either a…
Oil & grease on quartz typically appear as darkened smudges, shiny patches, or streaks near cooking areas. Although quartz is non-porous, surface residue from cooking oils and food preparation can build up and create visible discoloration. What’s Happening Quartz countertops are engineered using crushed quartz bound with polymer resins. Unlike natural stone, quartz does not absorb…
Oil & grease on limestone commonly appear as darkened areas, especially in kitchens, dining spaces, and outdoor cooking areas. Because limestone is porous and absorbent, oil-based substances can penetrate below the surface and create noticeable discoloration. What’s Happening Limestone is a calcium-based natural stone with a relatively open pore structure. When oil or grease sits on…
Oil & grease on granite are among the most common staining issues in kitchens and outdoor cooking areas. Cooking oils, food splatter, and grill residue can darken the stone, especially around cooktops, prep areas, and summer kitchens where exposure is frequent. What’s Happening Granite is generally dense, but it is still a natural stone with microscopic…
Oil & grease stains on travertine typically show up as darker patches where cooking oils, lotions, or greasy residues have absorbed into the stone. Because travertine is naturally porous, these stains can soak in below the surface if they aren’t removed promptly. What’s Happening Travertine has open pores and tiny voids that can pull in…