A fiberglass shower with stains, scratches, or a worn finish may be a candidate for refinishing instead of replacement. The right kit depends on more than color: check that the coating is made for fiberglass, confirm how much area it covers, and plan for the surface preparation and curing time. These three options differ in those details, from a kit that names fiberglass compatibility and includes a non-slip additive to low-odor kits that come with application tools.
| Product | Best for | Notable details |
|---|---|---|
| Bathworks Essentials Tub & Tile Refinishing Kit | Fiberglass showers and tubs | Non-slip additive; covers one standard tub or up to 60 sq. ft.; tools sold separately |
| Xmntdo Tub and Tile Refinishing Kit | Matte finishes and larger projects | 35 oz.; includes tools; listed coverage of 50–55 sq. ft.; fiberglass compatibility is not specified |
| Jungarian Tub and Tile Refinishing Kit | Low-odor application on fiberglass | Includes tools; fiberglass is listed as a suitable surface; allow seven days for full curing |
Table of Contents
Our Picks: Best Fiberglass Shower Refinishing Kit reviews
Bathworks Essentials: Best Overall for Fiberglass and a Non-Slip Finish
The Bathworks Essentials kit is the most straightforward match for a fiberglass shower among these options. Its coating is listed for fiberglass and acrylic as well as porcelain, ceramic tile, and cast iron. The kit includes a non-slip additive, which mixes into the coating and is intended to reduce slipperiness in wet tubs and showers.
The package contains 22 fluid ounces of coating, hardener, liquid primer, non-slip additive, a mixing container, and instructions. The listed coverage is one standard tub or up to 60 square feet. That makes it important to measure your project: a larger shower may require more material than the kit provides.
This is a paint-materials kit, not an all-in-one tool set. Applicators and surface-preparation supplies are sold separately, so factor those into your project plan. Bathworks also calls for etching hard, glossy surfaces such as tile, porcelain, ceramic, and cast iron before coating; its description says etching is not needed on acrylic or fiberglass. Follow the supplied directions for your specific surface.
The finish is described as high-gloss white, while the included additive is meant to improve traction. If you want a matte look, or would rather get application tools in the box, another option may suit you better. The product description does not give a curing schedule, so check the package instructions before planning when the shower can be used again.
Pros:
- Explicitly listed for fiberglass and acrylic
- Includes a non-slip additive for tubs and showers
- Coverage is stated as one standard tub or up to 60 sq. ft.
- Includes coating, hardener, primer, mixing container, and instructions
Cons:
- Applicator tools and prep supplies are sold separately
- The listed coverage may not be enough for a larger shower
Verdict: Choose Bathworks Essentials if you want a high-gloss coating that specifically lists fiberglass compatibility and comes with a non-slip additive, and you are prepared to source your own tools.
Xmntdo Tub and Tile Kit: Best for a Matte Finish and Included Tools
Xmntdo stands out for its matte white finish and included application tools. The kit contains 35 ounces and is listed to cover 50–55 square feet, which may make it a practical option for a shower project with more area to coat. Its low-glare finish is a different look from the high-gloss Bathworks coating.
The product description names bathtubs, ceramic tiles, countertops, and floors as suitable surfaces, but it does not specifically list fiberglass. Since a fiberglass shower is the target surface, confirm compatibility with the manufacturer or the product packaging before buying. Do not assume that a coating for tubs or tile will bond properly to every fiberglass finish.
The coating is described as low odor and low in volatile organic compounds. The instructions call for mixing the hardener with the paint. The listing says it dries in 24–48 hours, with optimal curing in seven days, and that it can withstand prolonged immersion after that curing period. Plan around the full cure time rather than treating the initial dry time as the point when the shower is ready for use.
The matte appearance may help make minor surface marks less noticeable, according to the product description, but it may not be the right visual match if you want the shine of a factory-style glossy tub. This kit includes tools, unlike Bathworks, but its unconfirmed fiberglass suitability is a key consideration for shower owners.
Pros:
- Includes application tools
- 35-ounce kit with listed coverage of 50–55 sq. ft.
- Matte white finish for a low-glare look
- Low-odor, low-VOC formula according to the listing
Cons:
- Fiberglass is not specifically listed as a compatible surface
- Requires seven days for optimal curing, according to the listing
Verdict: Consider Xmntdo if you want a matte finish and included tools, but verify fiberglass compatibility before using it on a fiberglass shower.
Jungarian Tub and Tile Kit: Best Low-Odor Option That Lists Fiberglass
Jungarian is a low-odor, water-based two-component coating kit that explicitly lists fiberglass among its compatible surfaces. The product description also names ceramic, enameled, and porcelain surfaces, along with several other materials. It includes multiple application tools, which can make it a more convenient starting point than a kit that supplies coating materials alone.
The package contains 17.5 ounces, less than the Bathworks and Xmntdo options. The description does not give a coverage area, so measure your shower and check the package details before assuming one kit will cover the full surface. It also notes that darker base colors may need three or four coats for better coverage, which can affect how much material and time your project requires.
The instructions say to apply a second coat within two to four hours of the first, and to allow seven days for full curing. The listing describes the coating as water-based and low odor, but low odor does not mean that you can skip the product’s safety and ventilation directions. Follow its instructions for mixing, application, and when the shower can be used.
Compared with Bathworks, Jungarian includes tools and is described as low odor, but it does not list a non-slip additive or a specific coverage figure. Its smaller stated kit size also makes project-area planning especially important. The product description makes durability claims, but the actual result depends on proper surface preparation and following the manufacturer’s directions.
Pros:
- Fiberglass is explicitly listed as a compatible surface
- Includes multiple application tools
- Water-based, low-odor formula according to the listing
- Two-coat timing and full cure time are provided
Cons:
- 17.5-ounce package has no stated coverage area in the description
- Does not list a non-slip additive
Verdict: Choose Jungarian if you want a kit that lists fiberglass compatibility, includes tools, and is described as low odor, but confirm that its package size is enough for your shower.
How to Choose a Fiberglass Shower Refinishing Kit
Confirm the Coating Is Compatible With Fiberglass
Surface compatibility should be your first check. A kit may say it works on tubs, tiles, or countertops without naming fiberglass. Look for fiberglass in the manufacturer’s surface list, as Bathworks and Jungarian do. If the product description does not mention it, ask the manufacturer or check the package instructions before applying it to your shower.
Measure the Area Before Choosing a Kit
Estimate the surface area you plan to coat and compare it with the stated coverage. Bathworks lists coverage for one standard tub or up to 60 square feet, while Xmntdo lists 50–55 square feet. Jungarian’s description does not specify coverage, so you may need to confirm that detail before purchase. A kit that runs short can leave you unable to finish the surface as planned.
Check What the Kit Includes
Some kits supply only the coating materials, while others include application tools. Bathworks includes paint materials, a hardener, primer, a mixing container, and instructions, but its applicator tools and prep supplies are sold separately. Xmntdo and Jungarian describe their kits as including tools. Check the full package contents so you can budget for any rollers, brushes, mixing supplies, or preparation materials you still need.
Choose the Finish and Traction Features You Want
Consider how you want the shower to look and feel when wet. Bathworks is described as a high-gloss white coating with a non-slip additive. Xmntdo offers a matte white finish. Jungarian is described as a premium white coating, but its listing does not identify a non-slip additive. A slip-resistant additive may be a useful feature, but it is not a substitute for good shower safety practices.
Plan for Surface Preparation and Cure Time
Refinishing depends on more than applying paint. Follow the manufacturer’s directions for cleaning, repairs, priming, and any etching required for your surface. Bathworks says hard, glossy surfaces such as tile and porcelain should be etched first, while etching is not needed on fiberglass or acrylic. Cure times also differ: Xmntdo and Jungarian list seven days for optimal or full curing. Check the product instructions and keep the shower out of use for the stated period.
Consider Odor, Ventilation, and Project Timing
Jungarian and Xmntdo describe their formulas as low odor; Xmntdo also describes its formula as low in volatile organic compounds. These claims do not remove the need to follow the label’s safety directions. Plan the work when you can follow the product’s ventilation guidance and leave the shower unused during application and curing.
Frequently Asked Questions
Can you use a tub refinishing kit on a fiberglass shower?
Only if the product’s instructions list fiberglass as a compatible surface. Bathworks and Jungarian specifically name fiberglass. Xmntdo’s supplied description does not, so confirm compatibility with the manufacturer before using it on fiberglass.
Which of these kits includes a non-slip additive?
Bathworks Essentials lists a non-slip additive that mixes into the coating. The descriptions for Xmntdo and Jungarian do not mention one.
Do refinishing kits include all the tools you need?
Not always. Bathworks includes coating materials and a mixing container, but says applicator tools and prep supplies are sold separately. Xmntdo and Jungarian describe their kits as including tools. Check the package contents and instructions before starting.
How long should you wait before using a refinished shower?
Follow the exact cure-time instructions for your chosen product. Xmntdo lists seven days for optimal curing, and Jungarian lists seven days for full curing. Bathworks’ supplied description does not specify a cure time, so check its package instructions.
How much refinishing coating will a shower need?
It depends on the surface area and the product’s stated coverage. Bathworks lists one standard tub or up to 60 square feet, and Xmntdo lists 50–55 square feet. Jungarian does not provide a coverage figure in the supplied description. Measure the area and confirm coverage before buying.
Is low-odor paint safe to use without ventilation?
No product should be used contrary to its safety directions. Even when a formula is described as low odor or low VOC, follow the label’s ventilation, protective equipment, and application instructions.
Final Recommendation
For most fiberglass shower projects, Bathworks Essentials is the clearest all-around choice because it specifically lists fiberglass compatibility, provides a stated coverage figure, and includes a non-slip additive. Jungarian is a strong alternative if you prefer a low-odor formula and tools in the box, though its coverage is not stated. Xmntdo may appeal if you want a matte finish and broader listed coverage, but confirm that it is suitable for fiberglass before purchasing.
