For black mold in caulk, grout and seals
Get the black out of your caulk and grout, without scrubbing.
Novatrix mold stain cleaner gel · 200 g · thick gel, squeeze nozzle
A thick gel that stays on the stain, so it can work where sprays just run off. Squeeze it on, let it sit, wipe it off.
- Stays where you put it. The thick gel clings to vertical caulk lines, tile gaps and corners instead of dripping away.
- Targets the line, not the whole wall. The fine squeeze nozzle lays gel right along grout, sealant and seals.
- Mild, unscented, non-abrasive. For tile grout, sinks, tubs, windows, washer seals, concrete, stone and plastic.
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Free shipping $59+
Tracked delivery
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How to use
How to use
1. Squeeze the gel along the stained caulk, grout or seal.
2. Let it work as directed on the label.
3. Wipe it off with a damp cloth and rinse.
4. Repeat on stubborn or old stains.
Try a small hidden spot first. Keep out of reach of children.
In the box
In the box
1 × 200 g (7.05 oz) Mold Stain Cleaner Gel with squeeze nozzle.
Shipping
Shipping
Free shipping on orders $59+ (UK: $45+). Otherwise $7.99 to the US, $9.99 to Canada, Australia and New Zealand, and $6 to the UK. Most orders ship within 5-7 business days and arrive 10-20 business days after the shipment date, with tracking.
Mold Stain Cleaner Gel
See it in action
Squeeze. Wait. Wipe.
Swipe for more →
The root problem
It's not dirt on the surface. It's mold in the line.
Black mold grows into caulk, grout and rubber seals, where damp sits longest. Sprays run straight down the wall before they can work, and scrubbing just wears the line.
So the stain keeps coming back, darker each time.
Keep the cleaner on the stain.
Mold Stain Cleaner Gel is a thick gel that clings to vertical lines, gaps and corners, so it stays on the mold while it works. Then you wipe it away, no hard scrubbing.
How it works
Squeeze. Wait. Wipe.
A gel that stays on the stain.
Thin liquids run down walls before they can work. This thick gel clings to vertical caulk, grout lines and corners, right where the mold is.
Squeeze it exactly where you need it.
The fine squeeze nozzle lays a neat line along grout and sealant, so you treat the stain, not the whole wall, and waste less.
One bottle, many surfaces.
For tile grout, concrete, marble, walls, bathtubs, sinks, outdoor stone, plastic, furniture and washing machine seals.
The part you'll notice
A white line again.
The sink edge you stopped looking at, clean enough that you don't think about re-caulking.
Illustrative photos.
Clean my caulk linesSpray, scrub, or gel?
| This gel | Cleaning spray | Scrub brush | |
|---|---|---|---|
| Stays on vertical lines | ✓ | — | — |
| Reaches into gaps and corners | ✓ | — | ✓ |
| No hard scrubbing | ✓ | ✓ | — |
| Applies only where you aim | ✓ | — | ✓ |
Compared by method, not brand.
How to use it
- Squeeze: run a line of gel along the stained area.
- Wait: let it work as directed on the label.
- Wipe: remove it with a damp cloth and rinse.
- Repeat on stubborn, older stains.
Then dry the area after showers to slow regrowth.
Made for
Wherever damp sits.
Swipe for more →
Your pack
One bottle per room, or the whole house.
Every pack comes with the free Mold Spot Card.
Where mold hides at home, how to apply the gel in a neat line, how to wipe it off and how to slow it coming back. Download it now, no email needed.
Download the PDF ↓- Free Mold Spot Card with every pack
- One-time purchase. No subscription.
- Tracked delivery
Free shipping on orders $59+ (UK: $45+). Otherwise $7.99 to the US, $9.99 to Canada, Australia and New Zealand, and $6 to the UK. Most orders ship within 5-7 business days and arrive 10-20 business days after the shipment date, with tracking.
The honest part
It removes stains on the surface of caulk, grout and seals. If mold has grown deep behind cracked or peeling caulk, that caulk needs replacing. Very old stains may need a second round, and mold comes back where damp stays, so keep the room aired.
Questions people ask before buying
What does it work on?
Tile grout, concrete, marble, walls, bathtubs, sinks, outdoor stone, plastic, furniture and washing machine seals. Try a small hidden spot first.
How do I use it?
Squeeze the gel onto the stained area, let it work as directed on the label, then wipe it off and rinse.
Will it run down the wall?
It is a thick gel made to cling to vertical surfaces, tile gaps and corners, so it stays where you apply it.
Does it smell strong?
No. The formula is unscented, mild and non-abrasive.
Do I need to scrub?
The gel is made to loosen stubborn buildup so you need much less scrubbing. Very old stains may need a second application.
Will the mold come back?
Mold returns where damp stays. Dry the area after showers and keep the room ventilated; reapply when spots show.
How much is in a bottle?
200 g (7.05 oz) of thick gel in a squeeze bottle with a fine nozzle. Shelf life 3 years; store in a cool, dry place.
How long does delivery take?
While most orders placed Monday through Friday (excluding major holidays), will typically ship within 5-7 business days and arrive in between 10-20 business days after the shipment date, some circumstances may result in delayed shipping or delivery.
What does shipping cost?
Free on orders $59+ (UK: $45+). Otherwise $7.99 to the US, $9.99 to Canada, Australia and New Zealand, and $6 to the UK.
How can I track my order?
When your package ships, we will send you an e-mail notification that contains a link to which you can track your shipment. You can also track the status of your shipment at 17track.net.
Can I return it?
We does not accept returns or refunds on any products once the product is delivered to the carrier. For more enquiries, please contact us via service@novatrixn.com.
Here before and after your order
A real question? Talk to us.
Not sure it suits your surface, or where your order is? Send us a photo of the stain and we will help.
service@novatrixn.comTwo ways this can go
Keep scrubbing a line that stays black, or let the gel do the work.
Get my mold gelFree shipping on orders $59+.