Product Overview
Thassos White Marble 3/4" x 12" Bullnose Liner Molding provides ultra-clean architectural edge transition, pristine crystalline brightness, and custom stone finishing to interior tile installations. Quarried from the Greek island of Thassos, Thassos White is world-celebrated as the purest, snow-white natural marble in existence, known for its brilliant light reflection and near-total absence of heavy veining or dark mineral inclusions.
Featuring a smooth 3/4" rounded bullnose profile in a 12" linear strip, this versatile trim molding is engineered to frame wall field tiles, cap shower niches, border kitchen backsplashes, and soften exposed, raw tile edges. Available in high-gloss polished or satin honed finishes, it adds refined dimensional depth and a clean masonry edge to luxury stone designs.
Technical Specifications
| Technical Property |
Value / Specification |
Notes / Compliance |
| Material Type |
100% Genuine Greek Natural Marble |
Quarried in Thassos, Greece |
| Series / Colorway |
Thassos Pure White |
Crisp Crystalline White (Minimal/No Veining) |
| Nominal Dimensions |
3/4" W x 12" L (1.9 cm x 30.5 cm) |
Linear Rounded Bullnose Trim Profile |
| Profile Shape |
Half-Round / Bullnose Pencil Liner |
Smooth Rounded Architectural Molding |
| Surface Finish |
Polished or Honed |
Luminous Gloss or Soft Satin Matte |
| Shade & Graphic Variation |
Uniform / Low Variation (V1) |
Exceptionally Pure White Field |
| Edge Detail |
Smooth Rounded Crown / Flat Back |
Designed to Butt Tightly Against Field Tile |
| Recommended Applications |
Shower Niche Frames, Wall Borders, Backsplash Edging, Chair Rails |
Interior Vertical & Low-Impact Horizontal |
Recommended Applications
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Shower Niche & Window Frame Capping: Softens and seals exposed tile edges around recessed shower niches, window sills, and tub surrounds with a smooth, finished marble edge.
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Kitchen Backsplash Transitions: Serves as a crisp linear border between subway tile fields and mosaic cooktop feature panels.
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Wainscoting & Accent Wall Borders: Acts as a slim, elegant cap trim along tiled wainscoting, vanity accent walls, and mirror perimeters.
Installation & Handling Guidelines
⚠️ IMPORTANT: PURE WHITE GREEK MARBLE SETTING & SEALING PROTOCOL
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Pure White Thin-Set Mortar Required: Thassos White marble is highly translucent. Always set bullnose liners using a high-performance, polymer-modified pure white thin-set mortar (ANSI A118.4 / ANSI A118.15). Using gray thinset will bleed through the stone body and permanently darken its pure white field.
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Pre-Sealing Before Grouting: Apply a high-quality penetrating natural stone sealer to the trim piece prior to grouting to guard against grout haze and pigment absorption into delicate marble pores.
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Cutting Protocol: Cut delicate bullnose trim using a continuous-rim diamond wet tile saw to prevent chipping along the thin, rounded crown.
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Non-Abrasive Grout Selection: Use a non-sanded grout or high-performance flexible grout formulated for delicate natural stone to avoid scratching polished surfaces.
Care & Maintenance
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Routine Cleaning: Wipe clean regularly using warm water and a neutral pH natural stone cleaner or mild dish soap.
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Avoid Acidic Cleaners: Never use vinegar, bleach, muriatic acid, or abrasive bathroom cleansers, which will etch calcium carbonate marble surfaces.
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Periodic Resealing: Reapply a penetrating stone sealer every 1 to 2 years (or more frequently in wet shower environments) to maintain water repellency and stain defense.
Design Profile
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Aesthetic Inspiration: High-End Contemporary, Neo-Classical, Greek Island Coastal, Modern Minimalist.
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Visual Advantage: Pure snow-white color profile creates a seamless edge match for Thassos subway tiles, hexagon mosaics, and light quartz slabs without color clashes.
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Complementary Finishes: Pairs exceptionally well with Thassos field tile, polished chrome, champagne bronze, or matte black plumbing fixtures, and crisp white vanity cabinetry.
Frequently Asked Questions
Why is a bullnose liner used instead of a standard tile edge?
Bullnose liners feature a finished, rounded edge profile that covers raw, unglazed, or rough-cut tile edges, giving shower niches, wainscoting, and backsplash borders a smooth, professional stone finish.
Does Thassos White bullnose liner require sealing?
Yes. As genuine natural marble, it is porous and must be sealed with an impregnating natural stone sealer prior to grouting and maintained periodically over time.
Is Thassos White bullnose liner real marble or ceramic?
This listing specifies 100% genuine natural Greek Thassos White marble quarried in Greece, featuring authentic crystalline structure throughout the stone body.
