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How Do I Get Sticker Glue, Caulk or Silicone Off the Tub?

Updated September 2026

Wondering how to get sticker glue off the tub, or how to clean up caulk a contractor left on the acrylic? For the tub shell, stubborn residue comes off with denatured alcohol on a soft cloth, which lifts adhesive and silicone smears without harming the finish. For an Ella acrylic shower, such as a three-piece unit being recaulked at its seams, the team's recommendation is rubbing alcohol, and it is the only product recommended for removing old silicone from those seams. On every Ella acrylic surface the rule is the same: alcohol is fine, while anything abrasive or acidic will damage the acrylic. The full product rules are in approved cleaners and chemicals to avoid.

Likely Causes

Shipping and packing labels left on the acrylic that dried and left glue behind. Fresh caulk or silicone smeared onto the deck or shell during installation. Silicone that has fully cured on the tub, which takes patience rather than force. Old pure silicone in the seams of a shower unit that has to come out before the seams are recaulked.

What to Check, in Order

  1. Confirm which surface you are working on. For the tub's acrylic, use denatured alcohol. For an Ella acrylic shower stall or its seams, use rubbing alcohol. General shower care is in caring for Ella showers.
  2. Start with warm water and an acrylic-safe cleaner on a soft cloth. Fresh caulk and light adhesive often come off with nothing more.
  3. For glue or silicone that remains on the tub, dampen a soft cloth with denatured alcohol and work the spot gently, letting the alcohol soften the residue rather than scrubbing at it.
  4. For old silicone in shower seams, wipe the bead with rubbing alcohol and give it time to soak in. The alcohol will not fully dissolve the silicone, but it breaks it down enough to peel and lift by hand, and a second pass cleans the remaining film.
  5. For a thick, cured bead on either surface, ease the bulk up gently with a plastic edge rather than a metal blade or razor, then finish the film with alcohol.
  6. Rinse the area with water and dry it before applying fresh silicone.
  7. Never reach for abrasive pads, scouring powders or acidic cleaners on any Ella acrylic, and do not experiment with solvents stronger than alcohol.

When to Open a Ticket

If the residue has left a mark or dull patch that gentle cleaning does not fix, or you are unsure whether a surface is acrylic or a shower base material, contact your Ella dealer or the team at (800) 480-6850, or open a request at ellasbubbles.com/support. Include your model, a photo of the residue, and a note on what has been tried so far. Other everyday care questions are answered in common maintenance questions.

Common Questions

Is denatured alcohol safe for removing silicone from the tub?
Yes. Denatured alcohol is the recommended way to lift stubborn marks and residue from the tub's acrylic, applied with a soft cloth and gentle pressure. It softens adhesive and silicone smears so they wipe away without scratching.
What solvent is safe for removing old silicone from my Ella shower?
Rubbing alcohol is the only product the team recommends for the seams of an acrylic shower unit. It softens the silicone so it can be removed by hand, and anything abrasive or acidic will damage the acrylic finish.
Will alcohol dissolve the old silicone completely?
No. Alcohol breaks the silicone down and loosens its grip, but the bulk of the bead still comes off manually. Lift it with your fingers or a plastic edge, then wipe the last film with more alcohol.
Can I use a razor blade to scrape caulk off the tub?
No. A metal blade can scratch the acrylic, and anything abrasive is bad for the finish. Lift thick silicone with a plastic edge and let alcohol soften the rest.
What products should I avoid when cleaning residue off acrylic?
Anything abrasive or acidic. Scouring pads, scouring powders and acidic cleaners will damage the acrylic, so stay with alcohol and acrylic-safe cleaners on a soft cloth.

Still Need Help?

Open a ticket at ellasbubbles.com/support or call (800) 480-6850 and have your model and serial number ready.

About this guide. Answers in the Ella’s Bubbles Support Center are compiled from real conversations with tub owners, our technicians’ notes and the product documentation, then reviewed by our team. Tub models and options have evolved over the years, so a detail here may differ slightly from your exact tub. If something looks different on yours, send us your serial number and a specialist will confirm it for your model.

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