How to Paint Over a Glossy Tile Splashback in a Kitchen

Painting over a glossy tile splashback is absolutely doable as a DIY project, but the key to a lasting result is thorough preparation and choosing products designed for slick, non-porous surfaces. Skip the prep and you'll likely end up with peeling paint within weeks — especially in a kitchen where steam, grease, and moisture are constant challenges.

Is Painting Tiles a Good Idea?

Painting tiles is a cost-effective way to refresh a dated splashback without the expense and mess of retiling. However, it's worth being realistic: a painted tile surface will never be quite as durable as a glazed ceramic tile. With the right products and care, a painted splashback can last several years, but it will need more careful cleaning and may eventually need repainting.

If your tiles are cracked, have loose grout, or show signs of moisture getting behind them, fix those issues first — paint won't solve underlying problems and could trap moisture, leading to mould. Check BRANZ for guidance on moisture management in kitchens.

What You'll Need

• Degreaser or sugar soap (essential in a kitchen)
• Fine-grit sandpaper (120–180 grit) or a sanding sponge
• Painter's tape and drop cloths
• Bonding primer suitable for tiles and glossy surfaces
• Tile paint or enamel topcoat (water-based or solvent-based)
• Small foam roller and a quality brush for edges
• Grout pen or grout paint (optional, for a crisp finish)

Step-by-Step: How to Paint a Glossy Tile Splashback

1. Clean Thoroughly

Kitchen tiles accumulate grease, cooking oils, and grime that will prevent paint from bonding. Wash the entire splashback with a dedicated degreaser or a strong sugar soap solution. Rinse well and allow to dry completely — at least 24 hours.

2. Sand the Surface

This is the step most DIYers skip, and it's critical. Lightly sand the glossy tile surface with 120–180 grit sandpaper or a sanding sponge. You're not trying to remove the glaze — just scuff it up enough to give the primer something to grip. Wipe away all dust with a damp cloth, then let it dry again.

3. Mask and Protect

Use painter's tape to protect benchtops, cabinetry, walls, and any appliances nearby. Lay drop cloths over your bench and floor. Remove power point covers if possible (switch off the circuit at the board first — do not work around live electrical fittings).

4. Apply a Bonding Primer

A bonding primer is non-negotiable on glossy tiles. Standard wall primers won't adhere properly to a slick surface. Look for products specifically labelled for tiles, glass, or glossy surfaces. Resene and Dulux both offer bonding primers suitable for this application — check with your local store for their current recommended product for tiles.

Apply a thin, even coat with a foam roller and cut in with a brush. Allow to dry fully per the manufacturer's instructions before moving on.

5. Apply the Topcoat

Use a tile-specific paint or a hard-wearing enamel formulated for kitchens and bathrooms. These are designed to resist moisture, steam, and light cleaning. Apply two thin coats rather than one thick coat, allowing full drying time between coats. A small foam roller gives the smoothest finish with minimal texture.

Wattyl and Dulux both produce kitchen and bathroom enamel ranges worth considering. Always read the product data sheet for recoat times and curing periods.

6. Finish the Grout Lines (Optional)

If your grout lines are discoloured or you want a clean, uniform look, use a grout pen or grout paint after the tile paint has fully cured. This can make a big difference to the overall finish.

7. Allow Full Cure Time

This is important: paint may feel dry to the touch within hours, but full hardness (cure) can take 7–14 days depending on the product. Avoid scrubbing or placing items against the splashback during this period. After curing, clean only with a soft cloth and mild detergent — avoid abrasive cleaners or scourers.

Colour and Finish Tips

• Satin or semi-gloss finishes are easiest to wipe clean and suit kitchens well.
• Lighter colours will show grease marks more readily; mid-tones are practical.
• Visit a Resene ColorShop or Mitre 10 to pick up sample pots and test colours on a small area first.

When to Call a Professional

If you're not confident with surface preparation, or if the splashback is large and highly visible, it's worth getting a professional painter involved. A qualified painter will have access to trade-grade bonding primers and tile coatings, and can guarantee a smoother, longer-lasting result.

For electrical work — such as removing or reinstating power point covers or rangehood wiring near the splashback — this is restricted electrical work under NZ law and must be carried out by a registered electrician. Never attempt to work on live wiring yourself. Check the Electrical Workers Registration Board (EWRB) to find a registered electrician.

You can find qualified local painters and other tradespeople on tradedirectory.co.nz.

Sources & Further Reading

• Resene – Paint and colour advice
• Dulux – Kitchen and bathroom paint products
• BRANZ – Moisture and weathertightness guidance
• EWRB – Registered electricians in NZ
• WorkSafe NZ – Safe use of paints and solvents
• Mitre 10 – Painting supplies and tools