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Stain gel for seals, grout and caulk. Paste for holes and cracks.

Small fixes, done at home

Dark marks on the seal. Holes in the wall. We make the fix for both.

Our gel sits on the black lines in silicone and grout for a few hours, then wipes away. Our paste fills a nail hole in a minute and sands flat.

1. Washer door seal

Black lines in the folds of a front-loader seal.

8 fl oz Stain Gel with Brush, from $12.99

Stain gel, three favorites

Thick, unscented gel for silicone seals, grout and caulk.

All Sugelary gels

Sugelary started with a nail hole

Sugelary began in 2019 with a tube of white paste and a rented apartment. Moving out meant a wall full of picture holes, and the tubs of filler in the hardware store were far too big for a dozen nail holes.

So the first thing we made was a small tube with a narrow nozzle, a plastic scraper and a square of sandpaper in the same box. You squeeze, you scrape, you wait, you sand. That kit is still in our range.

Sugelary stain gel going onto the rubber seal of a front-loading washer

How the gel works

Four steps, and most of the time is waiting.

  1. Dry it

    Wipe the area and let it dry. Gel slides off wet silicone.

  2. Apply thick

    Lay a heavy bead of gel over the whole mark, not a thin film.

  3. Wait

    Leave it for the time on your bottle. Old marks like the longer end.

  4. Wipe away

    Wipe off with a damp paper towel. Repeat on stubborn lines.

Waiting time: 3 to 8 hours
0 h6 h12 h

Then came the washer seal

The gel came from the same kind of annoyance. The rubber seal on a front-loading washer grows black lines in its folds, and a spray cleaner runs straight off them. Scrubbing moves the marks around without lifting them.

We wanted something thick enough to sit on a vertical seam for hours. The result is our stain gel: unscented, and sold in bottles from 5 to 16 fluid ounces. You lay a bead over the mark, leave it, and wipe it away.

Every new bottle we make goes onto our own washers and bathroom caulk before it goes into the range. We argue longer about the shape of the nozzle than about the colour of the label, because the nozzle decides whether the gel lands on the seam or on the floor.

  • Products8
  • Sizes and packs13
  • Gel waiting time3–8 h
  • Ratings, each pool counted once14,400

Which size of gel?

Every bottle we sell, by volume, with the price per fluid ounce from our last update.

Compare gels

Wall repair

White paste for nail holes, cracks and chips, with the tools in the box.

Sugelary wall repair

How the paste goes on

Fill, scrape, dry, sand, paint.

  1. Fill

    Shake the tube, then press paste into the hole or along the crack.

  2. Scrape flat

    Drag the scraper across at a low angle so the paste sits flush.

  3. Let it dry

    About 3 hours by our tub kit's directions, longer in cold air.

  4. Sand and paint

    Sand lightly, wipe the dust, then paint to match the wall.

What the gel is for

Our gel lifts dark stains from hard surfaces and silicone, and that is the whole of its job. It is a stain remover, not a disinfectant.

The marks usually come from damp that never dries. Clean the stain with our gel, then fix the reason it formed: leave the washer door open after a wash, run the bathroom fan, dry the seal with a towel. Without that step the marks come back, whichever cleaner you use.

  • A stain removerOur gel lifts dark stains, and that is its whole job. It is not a disinfectant.
  • Not a leak fixA seal or a corner that stays wet will mark again. Dry it and ventilate.
  • Not for soft materialsCarpet, fabric and ceiling tile are outside what the gel is made for.

More ways to buy the gel

Boxed kits and the newest bottle.

All products

How to choose

For one washer and a shower corner, a 5 fl oz bottle is plenty. For a bathroom full of caulk, or a house where the job repeats every season, a 16 fl oz bottle costs less per ounce.

For walls, the tube kit covers nail holes and hairline cracks. The tub kit adds mesh patches for the holes a doorknob or a pulled anchor leaves behind.

  • One washer and a shower cornerA 5 fl oz bottle is plenty.
  • A bathroom full of caulkA 16 fl oz bottle costs least per fluid ounce.
  • Nail holes and hairline cracksThe paste kit with its tube and nozzle.
  • A doorknob or anchor holeThe tub kit with mesh patches.

What customers say

Printed word for word, the lukewarm ones included.

  • 5 out of 5
    This stuff is amazing! The caulking in my shower was admittedly pretty bad. I piled this onto the bad spots and left it overnight for about 12 hours. I was amazed when I cleaned it off! It got rid of 90% of the mold, and didn't eat away the caulk. all you have to do is pour it on, let it sit and rinse!
    Rosalie Everhart · September 22, 2026 · Home Stain Gel · 5 Fl Oz (Pack of 1) · verified purchase
  • 4 out of 5
    The Sugelary Mold Stain Cleaner definitely gets the job done, but it isn’t quite a “spray-and-walk-away” solution. On the positive side, it proved to be very effective at tackling stubborn mold stains—especially on the rubber gasket of a front-load washing machine, where buildup can be particularly tough.
    Rebecca · June 21, 2026 · Home Stain Gel · 10 Fl Oz (Pack of 1) · verified purchase
  • 5 out of 5
    Seems like some people don’t have much luck with this cleaner, but it got rid of most of the hard-to-remove mold in my HE washer gasket. Easy to use - just apply, scrub with the included toothbrush thing, and wait 3-5 hours (i waited the full five so i wouldn’t have to do a second application).The proof is in the…
    B. Huang · July 31, 2026 · Home Stain Gel · verified purchase

Questions we get

What exactly does the gel remove?

The dark stains that damp leaves in silicone, grout and caulk. It is a stain remover, not a disinfectant. The lasting fix is keeping the area dry.

How long do I leave the gel on?

Follow the time on your bottle. Our directions range from 3 to 8 hours, and old, deep marks do better with the longer end and a second round.

Can I use it inside the washer drum?

It is made for the rubber door seal and other hard surfaces around the home. After treating a washer seal, run a rinse or cleaning cycle before the next load of clothes.

Will the marks come back?

If the seal or caulk keeps staying wet, yes. Leave the washer door open after a wash, wipe the seal dry, and run the bathroom fan.

The repair paste is hard to squeeze. What now?

Cold thickens it. Take the cap off, add about 5 ml of hot water, close it and shake. Store it between -2 and 45 degrees Celsius.

Where do I pay and arrange delivery?

At checkout with our retail partner: payment, delivery and returns all happen there. Questions about which product fits a job go to fixes@sugelary.co.

How-to guides

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