Product Overview
Calacatta Violet Purple Polished Marble 1/2" x 12" Pencil Liner is an exotic natural stone architectural trim piece crafted from rare Calacatta Viola marble. Characterized by its dramatic, high-contrast palette of creamy white, deep violet-burgundy, cabernet, and warm plum veining, this rounded pencil molding provides an elegant finishing edge for high-end tile installations.
Polished to a mirror-like sheen, this 1/2" x 12" convex trim is designed to transition tile borders, cap backsplashes, frame decorative accent panels, and cover raw tile edges along primary bathroom walls, shower niches, and kitchen backsplashes.
Technical Specifications
| Technical Property |
Value / Specification |
Standard / Compliance |
| Material Type |
Authentic Natural Marble (Calcite) |
100% Natural Stone Trim |
| Color Palette |
Creamy White Field with Deep Violet, Wine & Cabernet Veining |
High Natural Color Variation |
| Nominal Dimensions |
1/2" Width x 12" Length (~1.27 cm x 30.5 cm) |
Bullnose / Rounded Pencil Profile |
| Thickness / Projection |
Approx. 1/2" Depth (~12.7 mm Profile Height) |
Dimensional Molding Profile |
| Surface Finish |
High-Gloss Polished |
Smooth Reflective Finish |
| Shade / Tone Variation |
V3–V4 (Moderate to High Veining & Tone Variation) |
Exotic Natural Stone |
| Water Absorption |
Low to Moderate (< 0.5%) |
ASTM C97 |
| Applications |
Interior Trim Edging, Niche Framing, Backsplash Caps, Wall Accent Borders |
Interior Dry & Wet Wall Areas |
Recommended Applications
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Bathroom & Shower Trim: Framing shower niches, capping half-wall tile wainscoting, and bordering vanity backsplashes.
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Kitchen Backsplash Accents: Framing stove backsplash feature panels and capping tile runs against drywall or cabinetry.
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Architectural Borders: Transitioning between contrasting wall tiles, mosaics, or stone fields in primary suites and powder rooms.
Installation & Handling Guidelines
⚠️ CRITICAL WARNING: NATURAL MARBLE MORTAR & SEALING PROTOCOL
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White Thinset Mortar Required: Calacatta Viola marble features a translucent cream-white background. Never use gray thinset mortar, as dark mortar will bleed through the stone and alter its natural color. Always set using an ANSI A118.4 / A118.15-compliant pure white polymer-modified thinset (such as MAPEI® Ultraflex 2 White or LATICRETE® 254 Platinum White).
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Mortar Coverage: Ensure complete thinset contact behind each pencil liner piece to prevent air pockets during setting.
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Sealing Strategy: Apply a premium solvent-based impregnating penetrating sealer (such as Miracle Sealants 511 Impregnator or StoneTech® BulletProof®) prior to grouting to protect delicate marble from absorbing grout dyes, and apply again after full grout cure.
Professional Recommendations
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Grout Selection: Pair with a non-sanded grout or fine epoxy grout in "Bright White", "Alabaster", or "Warm Gray" to protect polished marble surfaces from scratching.
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Mitering Corners: For 90-degree corner joins (such as framing a shower niche), use a wet diamond-blade tile saw to miter edges cleanly at a 45-degree angle.
Care & Maintenance
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Routine Cleaning: Clean exclusively with pH-neutral stone cleaners. Never use acidic cleaners, vinegar, bleach, or abrasive pads on natural marble.
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Spill Protection: Wipe up acidic liquids (wine, lemon juice, cosmetics) immediately to prevent surface etching on the polished finish.
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Resealing Schedule: Reapply an impregnating penetrating sealer every 12 to 18 months in high-moisture wet areas.
Design Profile
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Aesthetic Inspiration: Modern Eclectic, Italian Luxe, Dramatic Art Deco, and High-Contrast Spa Sanctuaries.
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Pairing Ideas: Excellent for finishing field tiles like Calacatta Violet, Thassos White, Carrara, or warm cream subway tiles.
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Complementary Fixtures: Aged brass, unlacquered copper, polished nickel, and matte black hardware.
Frequently Asked Questions
What is the primary purpose of a pencil liner tile?
A pencil liner (or pencil molding) is a narrow, rounded trim piece used to finish exposed raw tile edges, frame decorative mosaic feature panels, or create a clean transition between different wall tiles.
Why is white thinset mortar necessary for Calacatta Violet marble?
Because light-colored marbles are slightly porous and translucent, dark or gray thinset mortar can bleed through the body of the stone, giving your white and violet pencil trim a dull or muddy tone. Pure white thinset maintains the true color of the marble.
Can this pencil trim be used on shower walls?
Yes! When properly sealed with a penetrating sealer and installed using pure white thinset mortar, this marble pencil liner is fully rated for shower walls, niche surrounds, and bathroom wainscoting.
Does every piece feature the same amount of purple veining?
No. Calacatta Violet (Viola) is famous for its rich, high-contrast natural variation (V3–V4). Some pencil pieces will feature intense wine-colored veining, while others will have a creamier field with lighter plum streaks. Dry-laying pieces prior to installation is recommended to blend the veining naturally across your wall.
