Powder on your hand, pale walls or fine cracks in the paint? Here is what each one means and how to repaint so it does not happen again.
Chalking, fading and fine cracking are the three ways exterior paint wears out in the Malaysian sun. Chalking (a powder that rubs off on your hand) and fading mean the binder and pigment have broken down under UV; a network of fine cracks in the paint film usually means the paint was applied too thick, has lost its flexibility, or was the wrong paint for outside. None of these is a damp problem, so the fix is washing, sealing and repainting with a proper exterior system, not waterproofing. ClickBina's exterior repaint guide puts a straightforward double-storey terrace repaint at RM4,000 – RM8,000 (indicative 2026, Klang Valley).
Outside walls in Malaysia take strong sun, daily heating and cooling, and heavy rain. Paint does not last forever under that. ClickBina's paint types guide puts weatherproof exterior paint's life outdoors at 5–10 years, against 1–3 years for interior emulsion used outside. As a paint film ages it fails in a few recognisable ways, and each one tells you something different about what to do next.
The one that is different is bubbling and peeling. That usually means water is getting behind the paint, which is a moisture problem rather than worn-out paint. Our bubbling and peeling paint guide covers that case. Black or green streaks are also a separate problem: they are mould or algae, which need treating rather than just painting over.
Rub the wall firmly with a dry palm or a dark cloth. If coloured powder comes off, the paint is chalking. Sunlight breaks down the binder that holds the pigment together, and the loose pigment is left on the surface as dust. A little chalk on an old coat is normal ageing. Heavy chalk on a coat only a few years old points to a weak product: interior emulsion used outside, a cheap exterior paint, or paint thinned too much.
Chalking matters because new paint cannot stick to powder. ClickBina's exterior repaint guide explains that paint laid over a chalky surface is sticking to dust and lifts later. The chalk has to be washed off and whatever is left bound with a sealer before the new topcoat goes on.
Fading is the pigment losing its colour under UV. It is almost always worst on the walls that face the afternoon sun, and on strong colours: deep reds, bright blues and dark greys fade faster and more visibly than off-whites and light neutrals. Patchy fading, where one wall or one band is paler than the rest, often shows touch-ups done with a different batch or product.
Fading on its own is cosmetic. It does not let water in. But fading and chalking usually arrive together, and by the time a wall has faded badly, the film is thinning too. If you only want to refresh the colour and the surface passes the palm test, a wash and two new topcoats may be enough.
This is the most important question on this page. A crack in the paint film is a paint problem. A crack in the render or wall behind it is a wall problem that paint will not solve.
| What you see | Likely cause | What it means |
|---|---|---|
| Fine random crazing across the paint only | Film has aged and lost flexibility | Paint problem: prepare and repaint |
| Deep mud-cracking in corners or thick patches | Paint applied too thick in one coat | Paint problem: scrape the thick areas back, then repaint |
| Crocodile-skin pattern (alligatoring) | Hard coat over a softer one, or many old coats | Paint problem: may need the old coats removed |
| Single hairline crack continuing through the render | Render shrinkage or minor movement | Wall problem: seal the crack before painting |
| Crack around windows or at the top of the wall | Movement at a joint or lintel | Wall problem: seal, and watch whether it grows |
| Crack wider than 3 mm, or still growing | Possible structural movement | Get it assessed before anyone fills it |
| Cracks with blisters or peeling nearby | Water getting behind the paint | Moisture problem: find the source first |
ClickBina's exterior repaint guide treats a crack wider than 3 mm, or still growing, as a job for an engineer to look at before anyone fills it. If the render sounds hollow when tapped around the cracks, see our hollow plaster guide before planning the repaint.
Several of these are workmanship shortcuts that save money on the day. That is why a quotation should name the sealer and the number of coats, not just the brand of the topcoat.
Touching up one wall rarely looks right on an old exterior, because the old paint has faded and the new paint has not. The patch shows as a different shade or sheen. Spot repair makes sense when the damage is local, for example a cracked area around one window or a wall that was damaged by a leak now fixed, and when you are happy to repaint that whole wall face from corner to corner rather than a patch.
A full repaint makes sense when chalking is general, fading is visible on several walls, or the paint film is cracking in many places. It is also the moment to fix what caused the early failure: the wrong product, no sealer, or a thick single coat.
| Failure | Preparation | Coating |
|---|---|---|
| Chalking | Wash off the loose chalk and dirt, let the wall dry | Sealer to bind remaining chalk, then two topcoats |
| Fading only, surface sound | Wash and dry | Two topcoats; a lighter colour holds up better on sunny walls |
| Fine film crazing | Wash, sand or scrape any loose edges | Sealer, then two topcoats |
| Mud-cracking or alligatoring | Scrape or strip the failed thick coats back to a sound layer | Sealer or primer, then two topcoats |
| Hairline render cracks | Rake out and seal with a flexible sealant | Sealer; consider an elastomeric topcoat on rain-facing walls |
The exterior repaint guide notes that the primer needs to dry fully, 2–4 hours, before topcoating, and longer in humid weather. It also recommends painting in the cooler morning or evening rather than in direct midday sun.
Use a weatherproof exterior paint, not interior emulsion, and use the maker's sealer with it. On walls that take the afternoon sun or driving rain, an elastomeric (crack-bridging) exterior paint stretches over hairline cracks and helps keep water out. Our exterior paint comparison explains why the brand name alone is not a specification: each brand is a range, and the quote should name the exact product.
Colour matters too. Lighter colours show fading less and absorb less heat. If heat is part of the reason you are repainting, see our heat-reflective paint guide for what those coatings can and cannot do on walls.
These are ClickBina's published ranges from the exterior repaint guide (indicative 2026, Klang Valley). They cover labour and paint for a straightforward repaint; heavy crack repair, damp treatment and access for upper floors are extra.
| Job | Indicative price | Source guide |
|---|---|---|
| Single-storey terrace (facade and sides) | RM2,000 – RM4,000 | Exterior repaint guide |
| Double-storey terrace (exterior) | RM4,000 – RM8,000 | Exterior repaint guide |
| Semi-D (exterior) | RM6,000 – RM12,000 | Exterior repaint guide |
| Scaffold or rope access, upper floors | adds RM800 – RM2,500 | Exterior repaint guide |
| Elastomeric or weathershield coating | RM4 – RM8 per sq ft | Exterior repaint guide (quoting the paint bubbling guide) |
WhatsApp us your job details for a quote — we reply within the hour.
💬 WhatsApp for a quoteTwo quotes for the same house can differ a lot because of preparation. The cheaper one often skips washing, the sealer or crack sealing, and those are exactly the steps that decide whether the new paint chalks or cracks early again.
WhatsApp us your job details for a quote: the type of house, which walls are chalky, faded or cracked, and whether any wall shows bubbling, damp or cracks that are growing. ClickBina is an experienced KL & Selangor contractor for whole-house refurbishment and trade coordination, so exterior repainting can be planned with crack repair, gutters and other outside work. We reply within the hour and the price we agree is a flat price with no hidden charges. A site visit is RM150, waived if you go ahead.
How we estimated prices: every RM figure on this page is quoted unchanged from the ClickBina guides named above; they are indicative Klang Valley ranges for 2026.
WhatsApp us your job details for a quote — we reply within the hour.
💬 WhatsApp for a quoteTell us what you need — we reply within the hour.