Home Showers

Stop a hairline crack or leaking edge on a shower tray and door seals before it leaks into the floor below

Shower trays take constant water and weight, and leaks tend to start where the tray meets the wall, door frame or seal, or at hairline cracks in older plastic and acrylic trays*.

Captain Tolley’s Creeping Crack Cure uses capillary action to seep into these fine cracks and gaps, less than 0.8mm wide, and seal them from the inside, often saving the cost and disruption of replacing the tray.

*Can be difficult to use on thin plastic shower trays because the thickness of the material surface area is too thin for the product to adhere to.

a shower enclosure in the home which can be sealed if there are leaks from hairline cracks using Captain Tolley's Creeping Crack Cure sealant

“I noticed a fine crack in the corner of my shower tray… applied it to the fine crack and you could see it seeping in, I applied a few times until it stayed on the surface over the crack… poured more water over the crack and none seems to be going into it, it just seems to run off it. I’ve used the shower for 10 days now and all seems good. So for me it’s a success and well worth the money.”

– Tony Whitworth, Judge.me review

“Found this and used to fix a leak through cracks in shower tiling, and between the door support and the shower tray. No more damp, mouldy carpet tiles!”

– Anthony, Judge.me review

How to use it on a shower

For a hairline crack in the tray:

  1. Clean the crack thoroughly and let it dry completely. A hairdryer can help make sure it’s fully dry before you start.

  2. Apply the sealant along the crack in short bursts, leaving 30-60 minutes between applications.

  3. Wipe away any excess immediately with a damp cloth. Dried stains can be removed with industrial wet wipes.

  4. Reapply until the crack stops taking up sealant. This can take a few rounds over a day or two.

  5. Leave for a minimum of 48 hours* before showering or getting the area wet.

  6. For extra durability, follow up with a shower tray repair paint or sealant over the crack once cured.

 

For a leak around the edge of the tray (where it meets the wall, frame, door groove or seal):

  1. Dry the joint thoroughly, using a hairdryer if needed.

  2. Apply the sealant along the joint or seal. If it disappears instantly, that’s the gap taking it up, so keep going until it stops.

  3. On a vertical or sloping section, apply a little at a time. The sealant is very thin and runs off if you apply too much.

  4. Wipe away any excess immediately with a damp cloth. Dried stains can be removed with industrial wet wipes.

  5. Leave for a minimum of 48 hours* before showering or getting the area wet.

 

Cure times depend on ambient conditions. The sealant cures faster on a completely dry tray in a warm, ventilated bathroom above 10°C / 50°F. Cold or damp air slows the process, and moisture can mix with the sealant and dilute it before it sets. Keep the tray dry while it cures, and allow extra time in a cold or damp bathroom.

Frequently Asked Questions

What type of crack or leak will it work on?

Hairline cracks in the tray that are less than 0.8mm wide, and hairline gaps where the tray meets the wall, frame or seal. It works best on cracks that stay still. A wide crack, or one you can see daylight through, needs a filler repair instead.

It seals the crack rather than hiding it, so a faint line may remain. A shower tray repair paint over the top gives a tidier finish.

A few rounds. A shower tray takes constant water and weight, and the crack often runs deeper than it looks from the top, so it can take more than one sitting to build up enough sealant to hold.

Not once it’s fully cured. Give it at least 48 hours, longer in a cold or damp bathroom, before showering, since water contact too soon can undo the repair before it’s had a chance to set.

It’s often a sign the tray is flexing underneath, for example from missing or incorrect support legs, rather than a problem with the repair. Checking the support before resealing gives the repair a much better chance of lasting.

Other uses

wooden sash windows which can be sealed if there are leaks from hairline cracks using Captain Tolley's Creeping Crack Cure sealant

Wooden & Sash Windows

Hairline cracks in window frames and glazing let moisture in, especially where the seal around the glass has shrunk or perished with age.

a cracked piece of crockery which can be sealed if there are leaks from hairline cracks using Captain Tolley's Creeping Crack Cure sealant

Crockery

Cracked plates, bowls, and treasured china can be repaired before the crack spreads further with every wash and use.

a conservatory which can be sealed if there are leaks from hairline cracks using Captain Tolley's Creeping Crack Cure sealant

Conservatories

Conservatory glazing seals face the same extremes of sun and rain as a boat's coachroof, making them prone to cracking and water ingress over time.

a concrete driveway which can be sealed if there are leaks from hairline cracks using Captain Tolley's Creeping Crack Cure sealant

Concrete, Patios & Driveways

Concrete patios, driveways, and slabs develop fine cracks over time as the ground shifts and the surface weathers, letting water in and allowing the damage to spread.