Which Silicone Should I Use to Reseat a Walk-In Tub Door Gasket?

Most reseated gaskets need no silicone at all, because the seal on an Ella walk-in tub is held by its fit in the door channel rather than by adhesive. When a loose or damaged gasket does need securing, Ella's door seal maintenance video calls for a thin bead of silicone placed into the gasket channel, left to set up for 20 minutes before the gasket goes back in and then given 24 hours to dry. Ella does not name a brand or type, and silicone sealant is a hardware-store item, so where the bead goes matters far more than which tube you buy. The reseating steps to try first are in Why Does the Door Gasket Pop Out Every Time I Shut the Door?.

Try Reseating Without Silicone First

The seal is a silicone gasket that presses into a groove running all the way around the door, and closing the door pushes out any section that sits on top of the groove instead of inside it. Most gaskets that keep coming out are simply reseated.

1. Open the door and note where the gasket lifts out, usually near the top or at a curve.
2. If the seal arrived deformed from shipping, squeeze it gently with your fingertips and pull it slightly away from the frame so it relaxes back into shape, then wipe it with rubbing alcohol.
3. Clean the groove and the frame with a household cleaner so nothing sits under the gasket. Residue in the groove is one of the reasons a gasket will not seat.
4. Starting at one end, press the gasket into the groove and work around the door, pushing it down with your thumbs or a plastic spatula until it is fully seated.
5. Close and open the door several times. If the gasket stays put, fill the tub and check for leaks.

The step-by-step seal installation video below shows the technique for a full gasket: adhesive remover is sprayed onto the gasket so it slides more easily into the channel, a spatula presses it into the groove, four V-shaped relief cuts are made where the gasket bends around the outer curves, straight vertical cuts are made at the inner curves, and the end is given a small angled cut so the tip slightly overlaps while staying fully inserted. No silicone appears anywhere in that process. For what the gasket is and how it works with the latch, see What Is the Door Seal on a Walk-In Tub?.

When a Thin Bead of Silicone Is Called for, and Where It Goes

The door seal maintenance video, also embedded below, covers the rare case of a seal that has become loose or damaged and has to be removed. On an outward-swing door the gasket is secured beforehand with a thin bead of silicone placed into the gasket channel. The silicone is allowed to set up for 20 minutes before the gasket is reinserted, and then left for 24 hours to dry. On an inward-swing door, the seal is rolled away from the frame and a bead of silicone is run down the corner where the gasket meets the frame; a bead can be added to the other side of the gasket if necessary, again with 24 hours to dry.

• Keep the bead thin and inside the channel or in the corner where the gasket meets the frame. It is an anchor for the gasket, not a replacement for the seal.
• Never spread caulk or silicone over the sealing face of the gasket. The face has to compress cleanly against the frame, and a seal that still leaks after reseating is replaced with a model-specific part rather than caulked.
• Let the silicone cure for the full time stated by the sealant manufacturer before the tub sees water, as Ella's technical support advises for silicone elsewhere on the door.
• Skip oils, grease and spray lubricants. Rubbing alcohol is what Ella uses to restore a seal that has stuck or deformed, and the install video's adhesive remover is only a slip aid for getting a gasket into the channel.

Why Silicone over the Seal Does Not Fix a Leak

The gasket works by compressing against a clean frame when the latch draws the door in, and on a level tub it compresses the same amount all the way around. Water at the door is almost always a leveling problem rather than a gasket problem: a leveling leg that has lost contact with the floor lets the frame warp, so the door no longer meets the seal evenly. Silicone on the sealing face hides that cause without curing it. Why Does My Walk-In Tub Door Leak at the Bottom? puts the checks in order: drain the tub, remove the apron, confirm every leveling leg sits solidly on the floor, reseat the seal, check the handle tension at the lock nut, and only then consider the seal itself.

A sticky or tacky gasket is not a reason for lubricant or sealant either. It almost always means residue on the seal or in the frame, or a gasket kept compressed by a door latched between baths. My Door Seal Is Sticky. What Can I Clean or Lubricate It With? covers the household cleaner and rubbing alcohol routine.

Silicone That Is Correct Elsewhere on the Door

There is one door leak where silicone sealant is the fix: water weeping from the screws on the door handle. Those screws pass through the door panel, and if the seal around them is no longer tight, water follows the screws through the door and drips down the outside, sometimes inside the apron and onto the floor. The repair is to drain the tub, remove the handle screws, clean old sealant out of the holes and off the screws, apply silicone sealant into each hole and under each screw head, drive the screws back in, wipe away the excess and let the silicone cure for the manufacturer's full time. Then fill above handle height and check the outside of the door. Ella's technical support recommends doing this and testing before ordering a new door seal, as explained in Water Leaking From the Door Handle Screws: Reseal the Screws Before Replacing the Door Seal.

Habits That Keep the Gasket in Its Channel

• Leave the door slightly open or unlocked whenever the tub is not in use, so the gasket is not compressed for days at a time. This extends its flexibility and life.
• Clean the seal and the door frame regularly with a common household cleaner and a soft cloth, never abrasives. Debris left in the seal or the frame can cause leaks.
• Never lean on the door or use it as a handhold. The warranty on the door and seal depends on the alignment staying as it was set at installation.
• Each door uses its own seal size, so a replacement is matched to your model and serial number.

If a section pops out again after reseating, or the seal is torn or will not seat after cleaning and reshaping, open a ticket at ellasbubbles.com/support or call (800) 480-6850 with your serial number, clear photos of the seal and the leak point, and a note on whether all leveling legs touch the floor. The door seal is covered by the Lifetime Limited Warranty, and a replacement ships under the parts warranty once the team has verified the problem. Ella does not send technicians, so a local licensed plumber can do the work if you prefer not to.

Related Guides

• Door seal or gasket looks worn, loose, or leaks: care, repair, and replacement
• Caring for your walk-in tub door seal so it stays watertight for years
• Replacing a Leaking Door Seal: Torn Seal or Door Alignment, Warranty Coverage, and How the Seal Ships

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