The one difference that matters
Surface mildewcide sits near the face of the dried film. It works well until the wall is wiped a few dozen times — then the active ingredient is literally cleaned away, and the paint becomes an ordinary emulsion. Bonded mildewcide is locked through the whole film as it cures. Wiping the surface does not remove it, because the protection is not on the surface.
Nippon Anti-Mould is the first kind. Zinsser Perma-White is the second. In a low-humidity guest room both will look identical for years. In a Singapore bathroom that gets steamed and wiped daily, they will not.
Side by side
| Property | Zinsser Perma-White | Nippon Anti-Mould |
|---|---|---|
| Mildewcide | Bonded through the film | Surface-oriented |
| Survives repeated wipe-downs | Yes | Depletes over time |
| Self-priming | Yes, on most cured substrates | Sealer recommended |
| Film warranty | 5-year mould & mildew-proof | Varies by product line |
| Price position | Premium (S$109 / 3.78L white) | Mid-range |
| Best room | Bathrooms, kitchens, remediated walls | Low-humidity bedrooms, store rooms |
Where we would honestly use each
- Zinsser Perma-White — bathrooms, kitchens, service yards, any wall that has grown mould before, any wall that gets wiped weekly.
- Nippon Anti-Mould — a dry guest room or store room where budget matters more than film-level protection.
After remediation, there is no debate
A wall that has already grown mould once has proven it can. After a fungicidal wash and stabilisation, the topcoat is the long-term defence — and that is the moment to spend on the bonded film. It is why our own remediation crews carry Perma-White and not the cheaper alternative.
Common questions
Is Nippon Anti-Mould a bad paint?
No. It is a competent surface-mildewcide interior paint at a lower price point, and it works in low-humidity rooms. The question is where each paint belongs, not whether one is bad.
What is the single biggest technical difference?
Mildewcide placement. Nippon's sits nearer the paint surface and depletes with repeated cleaning; Zinsser's is bonded through the film, so the protection survives wipe-downs for years.
Which one do you put on a wall after professional mould remediation?
Zinsser Perma-White, almost always. A remediated wall has already proven it can grow mould — the topcoat needs the strongest film-level defence available, which is the bonded-mildewcide chemistry.