Thassos White Marble 1/2 X 12 Pencil Liner

Product Overview

This is the "Architectural Frame" of the collection. While the intricate mosaics provide the texture and pattern, the Thassos White 1/2 x 12 Pencil Liner provides the essential structure. It is the definitive choice for a "Couture" or "Classic Gallery" aesthetic, serving as the crisp, tailored border that separates a standard tile job from a custom stone masterpiece.

Thassos White Marble 1/2" x 12" Polished Pencil Liner Molding

Achieve architectural perfection with the Thassos White Polished Pencil Liner. Designed to serve as the ultimate finishing trim, this slim, demi-bullnose molding is carved from the world's most prestigious "Snow White" marble. With its signature crystalline structure and lack of heavy veining, it provides a clean, luminous boundary for any tile installation.

The Thassos Pencil Liner is the "versatile essential" for high-end masonry. Whether used to cap off a wainscot, frame a decorative Florita or Lattice mosaic "picture frame," or provide a smooth transition between different tile thicknesses, its 1/2-inch profile offers a subtle, sophisticated lift. The high-polished finish ensures that your borders catch the light just as brilliantly as your primary field tiles, creating a cohesive, high-luxury environment.

Technical Specifications

Recommended Applications

Confirm the current manufacturer approval for the intended floor, wall, shower, pool, exterior, or commercial installation before specifying this product.

Installation & Handling Guidelines

⚠️ CRITICAL: Pencil liners are structural focal points. Because they sit higher than the surrounding tile, any "crooked" placement is immediately obvious. Use a laser level or a physical "straight-edge" during installation to ensure your border remains perfectly horizontal or vertical.

Manufacturer Recommendations:

• Recommended Adhesive: Use a White Non-Slump Thin-set. This prevents the heavy pencil liner from "sliding" down the wall before the mortar sets, ensuring your border stays exactly where you placed it.

• Sealing Requirement: As with all Thassos products, apply a high-grade penetrating sealer. Pay special attention to the "ends" of the pencil liner where they meet, as these joints are susceptible to moisture.

• The "Dry-Miter" Check: Always "dry-fit" your mitered corners before applying mortar. If the corner isn't a perfect 90 degrees, use a diamond hand-sanding pad to gently "tweak" the angle for a seamless fit.

• Grout Color Coordination: Use the same grout for the pencil liner as you did for your mosaic. This makes the trim feel like a natural extension of the tile field rather than a separate additive.

• Protect the "Nose": During the grouting process, be careful not to strike the polished "nose" of the pencil with a metal tool. Use a rubber grout float to protect the high-shine finish from scratches.

Care & Maintenance

Use a cleaner appropriate to the listed material and follow the manufacturer’s maintenance instructions. Test any cleaner or sealer on a spare piece first.

Design Profile

• Elite Thassos Purity: The brightest white natural stone available, providing a neutral yet radiant border that coordinates with any color palette.

• Slim Demi-Bullnose Profile: A delicate 1/2-inch rounded face that adds a three-dimensional "finished" edge to raw tile ends.

• Seamless 12-Inch Lengths: Precisely calibrated to 12 inches to align perfectly with standard mosaic sheets and field tiles, minimizing grout joints.

• Multi-Functional Trim: Ideal for edging backsplashes, framing shower niches, or acting as a decorative "dado" rail between different tile styles.

• Hand-Polished Brilliance: Each piece is buffed to a mirror-like shine, emphasizing the gemstone-like quality of authentic Greek marble.

Frequently Asked Questions

• Can this be used to frame a mirror? Yes! It is a favorite for creating "built-in" stone frames for bathroom mirrors, providing a high-end, integrated look that standard wood trim cannot match.

• How do I handle corners? For the cleanest look, miter-cut the pencil liners at a 45-degree angle using a wet saw. This creates a professional "picture frame" corner.

• Why use this instead of a metal Schluter edge? While metal edges are modern, a Thassos pencil liner provides a "monolithic" stone look. It allows the entire installation to feel like a solid piece of carved masonry rather than a tiled surface with a metal cap.