Turn yellowed grout back to bright white in minutes with a water-based marker that goes on smoothly and leaves a uniform finish over stained grout.
BioShieldSeal is not a cleaner; it lays down a thin, opaque layer over years of soap scum, mineral buildup, and mildew shadows, letting future grime wipe away rather than soak in.
In a single pass, drag the chisel-tip along each grout line to hide discoloration — no prep, no harsh chemicals, and no scrubbing required.
Choose from 12 grout colors — White, Gold, Black, Silver, Beige, Yellow, Light Gray, Dark Gray, Khaki, Bright Yellow, Brown, Coffee — to match your tile or create a designer contrast.
Safety is simple: the water-based ink is non-toxic and odorless, making it suitable for homes with kids and pets, even in small bathrooms with limited ventilation.
How it works: BioShieldSeal isn’t a cleaner; the ink forms a thin, even layer on top of porous grout. Once dry, it resists staining and can be wiped clean with a damp cloth, so soap and water no longer sink in and restart the staining cycle.
Results are designed to be durable through daily use. The coat dries to a smooth, water‑resistant finish that holds up to showers and routine cleaning, with most users needing only light maintenance over time.
Is it easy to refresh the look after years of neglect? A single square foot test often shows noticeable improvement in minutes, and many customers complete the rest of the space the same day.
Three simple steps to go from yellowed to brand-new: Step 1 — wipe the grout with a damp cloth and let it dry completely for best ink adhesion. Step 2 — press the chisel tip to start ink flow, then glide along each grout line for an even coat. Step 3 — allow about 20 minutes to cure; the finish becomes a smooth, water‑resistant layer that holds up under everyday use.
| BioShieldSeal | Grout Cleaners | Re-Grouting Kits |
|---|---|---|
| Covers deep stains in one pass | ❌ | ✓ |
| Done in 20 minutes, no tools | ❌ | ❌ |
| Water-based, odorless, family-safe | ❌ | ❌ |