Mosaic for beginners: a stepping stone or coaster from broken tiles
Direct method mosaic with tile nippers, adhesive and grout. A first project that's forgiving and satisfying.
Mosaic is the art of the broken bit. Old tiles, chipped plates and glass tesserae become something new. Here's the direct method, which is the simplest route to a finished piece.
Base
For indoors, a MDF or plywood coaster blank sealed with diluted PVA. For outdoors, a concrete stepping stone or a terracotta pot.
Materials
Vitreous glass tiles (sold in sheets or loose), ceramic tiles, old china. Wheeled tile nippers cut all of these; wear safety glasses, always.
Design
Keep the first design bold: a spiral, a sun, a simple flower. Draw it on the base. Plan your background to flow around the design in rows or curves rather than a rigid grid; that flow ("andamento") is what makes mosaic look alive.
Laying
Butter each piece with tile adhesive (or PVA for indoor) and press down, leaving 2–3mm gaps. Work the design first, then the background. Nip pieces to fit edges. Let dry 24 hours.
Grouting
Mix powder grout to a peanut-butter consistency. Push it into the gaps with a gloved hand or spreader, covering everything. Wait 20 minutes, then wipe away with a damp sponge, rinsing often. Buff the haze off with a dry cloth once cured.
Sealing
Outdoor pieces need a grout sealer. Indoor coasters benefit from felt pads underneath.
Next steps
A mirror frame, a house number plaque, a garden table top.
Post a before-grout and after-grout photo; the transformation is the best part.
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