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What is AcrylX material and how is it different from acrylic?

Updated November 2026

AcrylX is acrylic, not a different material. What sets it apart is how it is applied: AcrylX is an acrylic finish laid over a fiberglass-reinforced shell, with Armorcore reinforcement behind the walls, while the acrylic in an Ella walk-in tub is a solid sheet formed over a mold. Ella uses AcrylX on its made-in-the-USA shower stalls, multi-piece kits and barrier-free roll-in bases, and What Are Acrylic Shower Walls and How Do They Work? shows how those panels and bases fit together. This page explains what the finish is, how it differs from sheet acrylic and from gel coat, and how to look after it.

What AcrylX Is, Layer by Layer

An Ella AcrylX shower unit is built in layers, and each layer has one job. The fiberglass-reinforced shell gives the stall or base its shape and strength. The AcrylX layer is the surface you see, touch and clean. Ella's product pages describe it as a long lasting applied acrylic finish with a high gloss, truer white look that resists scratching, cracking and chipping, and because it is less porous, it stays easier to clean. Behind the surface, the walls carry Armorcore reinforcement on all sides, so grab bars and seats can be mounted anywhere on the wall rather than only where the framing happens to be. That matters when a bather's needs change after the shower is installed, and What Is Armorcore Reinforcement on Ella Shower Stall Walls and Why Does It Matter? covers the reinforcement on its own.

Nothing on an AcrylX stall is a bolt-in part made from a different material. Even the molded seat on a one-piece or three-piece stall is a shape in the same fiberglass shell with the same AcrylX finish, which is why it is cleaned exactly like the walls and floor. Is the Ella Shower Stall Molded Seat Hollow, and What Is It Made Of? explains what that construction means for support under the seat.

How AcrylX Differs from Sheet Acrylic

The acrylic most people picture is a sheet, and that is what an Ella walk-in tub uses. Every current Ella tub shell starts as an acrylic and ABS sheet that is heated and vacuum-formed over the mold into one seamless surface, and the team describes that sheet as roughly 1/8 to 3/16 inch thick. The white runs all the way through the sheet, so a dull spot can be buffed out and the color resists fading in a way a sprayed finish cannot. Underneath, gel-coated fiberglass is applied to the back of the sheet for strength and the shell is bonded to a stainless steel frame. Fiberglass vs acrylic bathtub: what is the real difference? walks through that construction.

AcrylX reaches the same kind of result from the other direction. Instead of forming a thick acrylic sheet and reinforcing it from behind, the fiberglass shell is formed first and the acrylic finish is applied over it. Either way the bathing surface is acrylic and the strength comes from fiberglass behind it. Ella's care instructions treat AcrylX exactly like any other acrylic fixture, and Ella's published documents never draw a line between AcrylX and other acrylic surfaces. The one practical difference worth knowing is where each is used: sheet acrylic on the walk-in tubs, AcrylX on the shower stalls, kits and roll-in bases. If you are weighing an Ella product described as acrylic against one described as AcrylX, you are comparing two acrylic surfaces, and the choice should come down to the product itself rather than the name of the finish.

AcrylX, Sheet Acrylic and Gel Coat Side by Side

Every figure in this table appears in a published Ella document or in the dealer video on this page. Where none is printed, the cell says not listed.

SurfaceConstructionWhere Ella uses itHow it wearsWhat it means for you
AcrylXApplied acrylic finish over a fiberglass-reinforced shell, with Armorcore reinforced walls on all sidesMade-in-the-USA shower stalls, multi-piece kits and barrier-free roll-in basesHigh gloss, truer white; resists scratching, cracking and chipping; less porousAn acrylic surface with walls that take grab bars and seats anywhere
Sheet acrylicAcrylic and ABS sheet, roughly 1/8 to 3/16 inch thick, vacuum-formed and reinforced underneath with gel-coated fiberglass on a stainless steel frameEvery current Ella walk-in tubWhite runs through the sheet; a dull spot can be buffed outA solid acrylic bathing surface that resists fading
Gel coatSprayed gel coat finish built up behind with fiberglass resinLegacy ESM series one-piece stalls and low-threshold gel coat multi-piece showersA thin coating the dealer in the video describes as brittle, prone to chips and cracks as the unit expands and contractsThe older finish, and the one that behaves differently from both acrylics

The table shows why the question of AcrylX or acrylic has no real stakes, while the question of AcrylX or gel coat does. The first two rows are both acrylic bathing surfaces over fiberglass, and the differences between them are about which product you are buying, a tub or a shower, not about how the surface will wear. The third row is the one that behaves differently. Gel coat is a thin sprayed coating, and the dealer in the video explains that on the fiberglass tubs they used to install, the finish was brittle, the tub expanded and contracted as hot and cold water moved through it, and the result was chips and cracks that called for a full fiberglass repair followed by refinishing and polishing. A dull spot on acrylic, by contrast, can simply be buffed out. If you own an older Ella gel coat stall and are comparing it with a current AcrylX unit, that is the difference you are looking at.

Why Ella's Documents Compare AcrylX with Gel Coat

The comparison Ella's own documents draw is between the current AcrylX units and the older gel coat units. Gel coat is the finish on the legacy ESM series one-piece stalls and on the low-threshold gel coat multi-piece showers, and the documents for those units print a 3 year limited warranty. The AcrylX one-piece stalls print a Lifetime Limited Residential Warranty and a 30-Year Commercial Warranty, the longest printed term in the shower line. Armorcore is printed for the AcrylX stalls and kits and not for the gel coat units or for the sheet acrylic wall kits. Both generations are fiberglass units, and in both the fiberglass gives the shower its shape and strength, so the change from one to the other is the layer you see, touch and clean. What is the difference between gel coat and AcrylX Ella shower finishes? puts the two finishes product by product with their printed terms.

Caring for an AcrylX Surface

Because AcrylX is acrylic, Ella's care instructions are the same as for any acrylic fixture. Clean with warm water and liquid detergent, or with a non-abrasive cleanser made for fiberglass bathroom fixtures. Never use scouring powders, scouring pads or steel wool. The molded seat, the floor and the walls are all the same surface, so one cleaner and one method cover the whole stall. If you are not sure whether an older Ella stall in your home is gel coat or AcrylX, send the model number from its label and a photo through ellasbubbles.com/support, or call (800) 480-6850, and the team can tell you which finish you have and how to care for it.

Video
Chapters in this video
  1. 0:00 Lifetime Warranty And Service Ella's Bubbles offers a lifetime warranty on all bathtubs and installations, emphasizing excellent service.
  2. 0:14 Acrylic Bathtub Construction Ella's Bubbles walk-in tubs are made from a single piece of durable acrylic, preventing chipping or cracking.
  3. 0:49 Low Maintenance Acrylic Acrylic bathtubs are very easy to maintain and require minimal service, as dull spots can be buffed out.

Watch: Acrylic Over Fiberglass: The Better Walk-In Tub Choice | Voted Safest/Best 2020 | Ella’s Bubbles with chapters and a full transcript.

Video
Chapters in this video
  1. 0:00 Receiving and Inspecting Your Shower The video provides visual guidance for installing a barrier-free five-piece shower, emphasizing the importance of inspecting the unit upon arrival and noting any damage.
  2. 1:32 Dry Assembling Your Modular Shower The installer dry assembles the modular shower in an open space to ensure correct panels, drain location, and proper alignment before moving it to the bathroom.
  3. 3:04 Preparing the Framing Pocket and Subfloor The installer checks the framing pocket for proper sizing, squareness, plumb, and level, making necessary adjustments and inspecting the subfloor for integrity.
  4. 4:05 Installing the Shower Pan and Drain The installer cleans the pocket, dry fits and levels the pan, installs the drain body, and adheres the pan to the subfloor using silicone adhesive and bracing.
  5. 7:40 Assembling and Securing Shower Panels The installer places protection on the floor, caulks the pan ledge, and installs the lower and upper back panels, securing them to the studs.
  6. 8:31 Installing the Valve Wall and Plumbing The installer caulks the pan ledge and vertical back wall seam, sets the panel, drills holes for the valve and supply outlet, and connects the PEX supply lines.
  7. 11:05 Adding Accessories and Finishing Touches The installer marks, drills, and caulks around pilot holes for accessories, then caulks all seams and the front edge of the threshold, recommending a water retainer and shower curtain.
Video
Chapters in this video
  1. 0:00 Receiving and Inspecting Your Shower This chapter explains how to receive and inspect your shower unit upon arrival, including what to do if there is damage.
  2. 1:17 Dry Assembling Your Shower This chapter demonstrates how to dry assemble your modular shower to ensure all panels and the drain are correct and undamaged.
  3. 2:49 Preparing the Framing Pocket This chapter shows how to check and adjust the framing pocket for proper sizing, squareness, plumb, and level.
  4. 5:02 Installing the Drain Body This chapter guides you through installing the drain body and preparing the drain to meet local plumbing codes.
  5. 5:44 Permanently Installing the Base This chapter details how to permanently install the shower base, ensuring it is level and properly supported.
  6. 8:12 Installing the Wall Panels This chapter demonstrates installing the wall panels using the pin and slot system, starting with the wall opposite the valve.
  7. 9:13 Installing the Valve and Wall This chapter shows how to install the valve and then the valve wall panel, including connecting the water supply lines.
  8. 11:13 Finishing and Sealing the Shower This chapter covers installing surface mount accessories, caulking all seams, and the option of adding a flange trim molding kit.
Video
Chapters in this video
  1. 0:00 Introduction to Low-Threshold Shower Installation This video provides visual guidance for installing a low-threshold 3-piece shower, emphasizing the importance of referring to the installation manual.
  2. 0:24 Dry Assembly and Pre-Installation Checks The installer dry assembles the modular shower to ensure correct panels, drain location, and proper alignment before moving it into the bathroom space.
  3. 1:54 Preparing the Framing Pocket and Subfloor The installer checks the framing pocket for proper sizing, square, plumb, and level, making necessary adjustments and inspecting the subfloor for integrity.
  4. 4:07 Installing the Drain Body and Base Support The installer installs the drain body, prepares the drain to meet local plumbing codes, and applies silicone adhesive for proper support and adhesion of the base.
  5. 5:53 Permanently Installing and Securing the Base The installer permanently positions and levels the shower base, securing it to all available studs and cutting the drain pipe even with the rubber gasket.
  6. 7:22 Installing the Wall Panels and Valve The installer installs the wall panels using a pin and slot system, then installs the valve, connecting the hot and cold water supply lines.
  7. 10:19 Finishing Touches and Accessories The installer caulks all seams, recommends client involvement for accessory placement, and suggests an optional flange trim molding kit for a seamless transition.

Common Questions

Is AcrylX the same thing as acrylic?
Yes. AcrylX is an acrylic finish applied over a fiberglass-reinforced shell rather than a stand-alone acrylic sheet. Ella's care instructions treat it exactly like any acrylic fixture, and Ella's documents never draw a line between AcrylX and other acrylic surfaces.
Is AcrylX better than the acrylic on an Ella walk-in tub?
Neither is better; they are the same kind of surface used on different products. The walk-in tubs use a vacuum-formed acrylic sheet roughly 1/8 to 3/16 inch thick reinforced with fiberglass underneath, and the shower stalls, kits and roll-in bases use the AcrylX finish applied over a fiberglass shell. In both cases you bathe on acrylic with fiberglass giving the strength behind it.
Which Ella products use the AcrylX finish?
AcrylX appears on Ella's made-in-the-USA one-piece shower stalls, multi-piece shower kits and barrier-free roll-in bases. It is not printed for the legacy ESM series gel coat stalls, the low-threshold gel coat multi-piece showers or the sheet acrylic wall kits.
What is the real difference between AcrylX and gel coat?
Both are finishes over a fiberglass shell, but gel coat is a thin sprayed coating while AcrylX is an applied acrylic finish that resists scratching, cracking and chipping. The gel coat units print a 3 year limited warranty, and the AcrylX one-piece stalls print a Lifetime Limited Residential Warranty and a 30-Year Commercial Warranty.
How should I clean an AcrylX shower stall?
Use warm water and liquid detergent, or a non-abrasive cleanser made for fiberglass bathroom fixtures. Never use scouring powders, scouring pads or steel wool. The seat, floor and walls are the same surface, so the same method covers the whole stall.
Can grab bars be mounted anywhere on an AcrylX wall?
Yes. The AcrylX stalls and kits have Armorcore reinforced walls on all sides, so grab bars and seats can be mounted anywhere on the wall. That is one of the features that separates the current units from the older gel coat units and from the sheet acrylic wall kits.

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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