Product Overview

Cerdomus Ostuni Avorio Mosaico Porcelain Tile translates the warm, weathered character of southern Italian limestone into a compact mesh-mounted mosaic. Part of the Effetto Pietra di Ostuni collection, it features a softly varied blend of ivory, cream, warm beige, and subtle mineral shading inspired by the ancient stone surfaces of Salento.

Small square chips create a finely textured grid that coordinates with Ostuni Avorio field tiles while adapting easily to detailed surfaces. The mosaic’s flexible sheet construction makes it particularly effective for shower walls, niches, backsplashes, tub surrounds, decorative inlays, and other areas where larger field tile would require extensive cutting.

Cerdomus officially specifies the mosaic as a 30 x 30 cm sheet with 3 x 3 cm chips, matte finish, 9 mm thickness, and manufacturer item 0080403. Official Cerdomus collection specifications

Technical Specifications

International product data confirms item 0080403 at approximately 11.81" x 11.81", typically packaged six sheets per carton. Cerdomus 0080403 product data

Recommended Applications

• Shower Walls: Creates a detailed, color-coordinated surface over a professionally waterproofed wall assembly.

• Recessed Shower Niches: Small chips adapt easily to niche backs, shelves, corners, and plumbing penetrations.

• Bathroom and Vanity Backsplashes: Adds fine geometric texture behind mirrors, sinks, and wall-mounted fixtures.

• Kitchen Backsplashes: Reproduces warm limestone character without natural stone’s sealing or acid-etching concerns.

• Tub Surrounds: Coordinates with larger Ostuni Avorio field tile while providing a smaller decorative scale.

• Feature Walls: Suitable for powder rooms, hospitality spaces, entry walls, and other decorative vertical installations.

• Borders and Inlays: Can be cut into strips for transitions between Ostuni field-tile sizes or used as a framed accent panel.

• Shower Floors: Obtain written confirmation for the specific project. Small mosaics provide numerous grout joints, but the factory catalog presents Mosaico 3x3 primarily as a decorative wall component and does not publish a separate mosaic slip classification.

Installation & Handling Guidelines

⚠️ IMPORTANT: VERIFY THE PHYSICAL CHIP SIZE BEFORE PUBLISHING OR ORDERING

A genuine factory carton marked 0080403 / Mosaico 3x3 Avorio should correspond to Cerdomus’s 3 cm mosaic. Measure one chip and inspect the carton label before describing it as 2" x 2".

• Blend Multiple Cartons: The Ostuni collection carries V4 variation. Mix lighter, darker, and more heavily marked sheets throughout the installation.

• Use Porcelain-Rated Thinset: Install with a polymer-modified mortar meeting ANSI A118.4 or A118.15 and approved for the substrate and environment.

• Use White Mortar in Light Installations: White thinset is recommended behind Avorio, particularly where grout joints are light and numerous.

• Prepare a Flat Substrate: Mosaic sheets follow every irregularity in the wall or floor. Correct waterproofing seams, ridges, and depressions before installation.

• Flatten the Mortar Ridges: After combing mortar with an appropriately sized mosaic trowel, lightly flatten the ridges to prevent their pattern from showing through the joints.

• Control Mortar Squeeze-Through: Excess thinset can rise between the small chips and reduce the available grout depth.

• Press with a Grout Float: Embed each sheet uniformly using a clean rubber grout float or beating block. Avoid pressing individual chips unevenly.

• Inspect Sheet Spacing: Match the gap between adjoining sheets to the factory spacing within each sheet. Adjust perimeter chips before the mortar cures.

• Waterproof Wet Areas: Shower walls and floors require a complete waterproofing assembly beneath the porcelain mosaic.

• Use Flexible Sealant at Transitions: Apply silicone at corners, wall-to-floor transitions, niches, tubs, and other changes of plane.

Grout Selection

• Warm White: Maintains a light, continuous limestone appearance.

• Ivory or Alabaster: Coordinates closely with the Avorio colorway.

• Light Beige: Reinforces the collection’s warmer mineral tones.

• Warm Gray: Defines the square-chip pattern while remaining neutral.

Because mosaics contain substantially more grout than field tile, grout color will strongly affect the final appearance. Construct a sample board before completing the installation.

Care & Maintenance

• Routine Cleaning: Use warm water and a neutral porcelain-tile cleaner with a soft cloth, sponge, or non-abrasive brush.

• No Tile Sealer Required: The porcelain chips do not require penetrating sealer, wax, or topical coating.

• Protect Cementitious Grout: Grout may be sealed after curing if recommended by its manufacturer.

• Avoid Wax-Based Cleaners: Waxes can collect residue between the mosaic chips and alter wet-surface traction.

• Remove Grout Haze Promptly: The number of joints makes complete installation cleanup especially important.

• Maintain Wet Areas: Ventilate showers, remove soap residue, and inspect flexible sealant periodically.

Design Profile

• Aesthetic Inspiration: Puglian Limestone, Mediterranean Villa, European Rustic, Organic Modern and Boutique Spa.

• Color Character: Pale ivory and cream with warm-beige shading and intentionally varied stone graphics.

• Scale Advantage: The small square mosaic provides a fine texture that complements the larger Ostuni field-tile formats.

• Complementary Field Tiles: Ostuni Avorio 8" x 8", 8" x 16", 16" x 16", 16" x 24", and other coordinating formats.

• Complementary Cabinetry: White oak, walnut, warm white, mushroom, sage, and charcoal.

• Complementary Fixtures: Brushed brass, aged bronze, polished nickel, chrome, and matte black.

Frequently Asked Questions

Are the chips actually 2" x 2"?

Not according to Cerdomus’s current factory information. Manufacturer item 0080403 is officially named Mosaico 3x3, indicating approximately 3 x 3 cm—or 1.18" x 1.18"—chips.

What is the correct sheet size?

The official sheet measures 30 x 30 cm, approximately 11.81" x 11.81", and is marketed nominally as 12" x 12".

Does one sheet cover exactly one square foot?

The actual 11.81-inch-square face measures approximately 0.97 square foot. Retailers may round this to a nominal one-square-foot sales unit.

How thick is the mosaic?

Cerdomus lists the factory mosaic at 9 mm thick.

Can it coordinate with Ostuni Avorio 8" x 8" field tile?

Yes. It uses the same Avorio stone-look palette and 9 mm profile, making it suitable for coordinated field-and-mosaic installations.

Can it be used on a shower floor?

Possibly, but confirm the application with Cerdomus or the project professional. The small pieces provide numerous grout joints, but the factory does not publish a separate R or DCOF slip classification for item 0080403.

Does the porcelain require sealing?

No. The porcelain surface does not require sealing. Cementitious grout may be sealed.

How much extra material should be ordered?

Order at least 10% extra for ordinary walls and approximately 15% for shower pans, niches, borders, or cut-intensive layouts.