How to Prevent Peeling and Fading in Painted Pools

Keeping Your Finish Looking New

Peeling, flaking and fading are almost always preventable. They come from a handful of specific causes, and every one of them is something you control.

1. Surface Preparation

This is the number one cause of peeling, and it isn’t close. Paint will not bond to a surface carrying body fats, sun cream, algae, chalky residue or moisture.

• Wash the whole pool with diluted concentrated wash, then rinse thoroughly
• Remove all loose and flaking paint
• Repair cracks and chips — Structural Epoxy Filler for fine defects, Patch & Anchor Polymer Cement for larger ones
• Acid etch bare render — 2 parts water to 1 part acid on new, 3 to 1 on old. Always acid into water. Neutralise with bicarbonate of soda afterwards
• Abrade the entire surface of fibreglass and previously painted epoxy with 20–40 grit to a sandpaper feel, then remove all dust. A partial scuff isn’t enough — the new coat only keys into what’s been abraded

Full detail in our Step-by-Step Guide to Preparing Your Pool.

2. Moisture Under the Coating

Painting over a surface that isn’t dry traps moisture, and the result is blistering weeks or months later.

Moisture content must be below 5%. No hygrometer? Tape a square of black plastic to the pool floor in the morning. Droplets underneath by mid-afternoon mean it’s too wet to paint.

3. The Right Paint for the Existing Coating

• Epoxy — bare concrete and render, pebblecrete, marblesheen, fibreglass, and sound existing epoxy
• Chlorinated rubber — only over existing chlorinated rubber

Epoxy over chlorinated rubber will peel. Every time. Test first: rub the surface for a minute with acetone or Chlorinated Rubber Solvent — sticky means rubber, firm means epoxy.

Bare cement-based surfaces also need Epoxy Primer Sealer underneath. Fibreglass and sound existing epoxy don’t.

4. Curing Before You Fill

At least 10 days in summer. At least 14 days in winter. The same for both systems.

Filling early permanently damages the colour — cloudy, uneven distribution across the final coat, which no amount of maintenance will fix. Once filled, add nothing but salt or chlorine for a further 3 to 5 days.

Between coats, allow 20 to 24 hours. Past 24 hours you must abrade the whole pool to a dull finish before the next coat.

5. Film Build

Spreading paint thin to save a kit is a false economy. An under-built film wears through years early.

Each 3.5L kit covers 20–25m² per coat, over a minimum of two coats. Pebblecrete halves that and needs three coats. Work it out with the Pool Paint Calculator and order the full quantity up front.

6. Water Chemistry

Unbalanced water is the fastest way to fade a finish once the pool is in use. Target ranges:

• pH: 7.2–7.8
• Chlorine: 1–3 ppm
• Total alkalinity: 80–120 ppm

Consistent balance prevents chalking, discolouration and premature breakdown. Saltwater itself isn’t the problem — epoxy handles it well. Incorrect balance is.

7. Application Conditions

• Epoxy: between 10 and 30°C, staying in range for the 3 to 6 hours after application. Chlorinated rubber: 15 to 25°C. Humidity around 50%
• Never in direct sunlight — the surface skins before the base cures. Shade-cloth over the pool is worth the effort
• Never before rain. Rain or dew during curing leaves a milky bloom that has to be sanded off with 40–60 grit

8. Catch Problems Early

Small chips and cracks let water under the coating and spread. Inspect at the start of each season and repair anything you find — a small repair now is a fraction of a full recoat later.

Brush the pool weekly, particularly in shaded areas where algae takes hold.

9. UV and Colour Choice

Luxapool® Epoxy is UV stable and resists fading and chalking, but the Australian sun is relentless. Darker colours absorb more heat and tend to show cosmetic wear sooner, though the coating underneath usually stays sound.

The waterline and shallow end age fastest — an extra coat in those areas at painting time is worth doing.