How to Paint Old Tiles Safely and Effectively

Painting old tiles has become a popular way to refresh kitchens, bathrooms and utility rooms without demolition work or lengthy renovations. It makes it possible to change the colour, conceal marks and give the room a more contemporary look using affordable materials, provided every stage is carried out carefully and the right products are selected.

How should you assess the condition of tiles before painting?

Before applying any tile paint, examine the overall condition of the wall covering and identify issues that could affect the finish. Loose or cracked tiles, hollow sections and active water ingress must be repaired in advance, including any damaged grout.

If these structural faults are left unresolved, the painted surface may soon peel, blister or stain, shortening the lifespan of the visual update. In certain situations, it is advisable to ask a professional to establish whether damp is coming from pipework or from the wall behind the tiles.

Watch a video on the YouTube channel Thaís Bittencourt – Revê Interiores, which explains the key stages for safely painting old ceramic wall coverings with epoxy paint:

How do you choose the right tile paint for each room?

The type of tile paint used has a direct effect on adhesion, moisture resistance and day-to-day cleaning. In wet areas, such as shower enclosures and walls near the sink, water-based epoxy paints or synthetic enamels designed for smooth surfaces are generally recommended.

On walls with less exposure to water, some high-performance acrylic paints may also be suitable, as long as the manufacturer approves that use. When comparing the available products, consider these practical factors:

• Suitability for smooth tiles, with a clear indication on the label.
• Resistance to moisture, splashes and mild cleaning products.
• Drying and curing time before direct contact with water.
• Whether a suitable primer can be used to improve adhesion.

How do you prepare tiles and apply tile paint step by step?

Surface preparation is crucial to ensure tile paint bonds properly and does not peel easily. Tiles must be clean, dry and free from grease, soap residue, mould and dust. In kitchens, a degreaser and an abrasive sponge are usually essential.

Once the surface has been cleaned, lightly sand it with fine-grit sandpaper to remove the sheen from the original glaze, create adhesion and inspect the grout lines. With the preparation complete, organise the painting process into these straightforward consecutive stages:

1. Protect the room: Cover flooring, worktops, metal fittings and furniture with plastic sheeting or cardboard. Use masking tape around skirting boards, sockets and taps.
2. Apply primer: Use a foam roller or a short-pile roller to apply thin, even coats, following the stated drying time.
3. Apply the first coat of paint: Dilute the tile paint as directed on the label. Use a roller across larger areas and a brush for corners and grout lines.
4. Apply further coats: Once dry, repeat the application to address any patchy coverage. Dark tiles may require a third coat.
5. Complete the finishing touches: Remove the protective tape while the paint at the edges is still slightly damp, then use a fine brush for small touch-ups if required.

How can tile paint last longer in humid areas?

One of the most common concerns is preventing tile paint from peeling in damp spaces, particularly in shower enclosures and bathing areas. How long the finish lasts depends on thorough surface preparation, selecting the right paint and allowing the full curing period before the wall is exposed to direct water.

To provide extra protection, many professionals apply a varnish or sealer compatible with the paint, especially in areas exposed to a constant stream of water. For daily care, choose neutral detergents, avoid highly abrasive sponges, keep the bathroom well ventilated and watch for signs of water ingress. Moisture coming from behind the tiles can create blisters even when the paintwork has been completed properly.