The problem in Brisbane, QLD
Brisbane's humidity rates High for much of the year, and the CBD's position — suburban inland, about 16 km from the open coast — doesn't offer much relief: the air stays damp enough to keep mould risk rated High. Grout lines, ceilings and window frames hold that moisture after every shower, and black staining follows.
The MOULDZAP approach
MOULDZAP tackles it with advanced clean chemistry (peracetic acid generated in-situ) in a viscous formula that clings to vertical surfaces. Because it clings instead of running off, it keeps working on ceilings and tiles, penetrating porous grout where mould takes hold — bleach-free, chlorine-free and without harsh fumes, and it helps prevent regrowth. Science-led. Powered by nature.
MOULDZAP — Removes & prevents mould
Destroys mould at the source. Protects your home. Powered by nature’s science.
$32.98 incl. GST
Shop MOULDZAPFree shipping on orders over $99 to Brisbane — dispatched from Auburn, NSW.
Real results
Instructions
Ingredients
MOULDZAP FAQs
Will the mould come back?
Please follow the instructions correctly when preparing. MOULDZAP works differently from traditional bleach-based cleaners. While bleach typically removes surface stains, it doesn't fully eliminate the underlying mould spores — which is why regrowth is common. MOULDZAP is powered by an advanced formula that generates in situ peracetic acid, allowing it to break down and digest mould spores at their source. It also remains active on the treated surface for longer than chlorine-based products, continuing to work after application. In many cases, this can help keep mould away for up to 9 months, depending on environmental conditions such as moisture and ventilation. In short: Bleach treats the surface. MOULDZAP targets the root cause.
Is it safe on grout, silicone, and painted surfaces?
It won't damage silicone seals, grout or paint (unlike bleach). Mould grown inside silicone usually needs the seal replaced — no surface cleaner removes it. On every other surface MOULDZAP removes mould and prevents regrowth.
How long does it need to sit?
Spray, wait 15-30 minutes, then wipe. For stubborn black mould that has been there a while, leave it the full 30 minutes or reapply once. You do not need to scrub hard - the formula does the work.
Will it work on ceiling mould in a steamy bathroom?
Yes. Spray directly, wait, wipe with a damp cloth. If your bathroom stays damp long-term, you're fighting moisture not mould — improve ventilation at the same time and MOULDZAP will stop the regrowth cycle for good.
Brisbane questions, answered
Why does bathroom mould keep coming back in Brisbane?
With humidity rated High for much of the year, any spores left in grout or silicone quickly re-establish. Surface-bleaching removes the stain but often leaves the root structure. A clinging treatment that penetrates porous surfaces — used with better ventilation — helps prevent regrowth.
Does high humidity affect rooms beyond the bathroom?
It can. When indoor humidity stays elevated, wardrobes, ceilings and poorly ventilated corners can all hold enough moisture for mould. Treat visible growth wherever it appears and improve airflow to slow its return.
Do I need to treat the ceiling too?
If you can see spotting on the ceiling, yes — steam rises, and ceiling paint is porous enough to hold growth. MOULDZAP's viscous formula is designed to cling to overhead and vertical surfaces long enough to penetrate.
