
Process
- Pick up a bathtub repair kit from the hardware store or home improvement center. ...
- Clean the area around the crack in the tub. Dry the area thoroughly before continuing.
- Sand the crack in the tub and a 1 inch radius all around the crack.
- Cut a piece of mesh to fit over the crack, if necessary. Your kit will specify how large the crack must be in order to justify use of mesh.
- Mix the epoxy and tinting materials as instructed in the kit. Individual kits may vary. ...
- Spread the epoxy over the crack. Move quickly because the epoxy will start to harden, probably in a matter of minutes after being exposed to air. ...
- Place the mesh over the epoxy (if the mesh is justified). Lay the mesh flat over the wet epoxy.
- Place more epoxy over the mesh. Smooth the top layer of epoxy so that the edges of the epoxy will dry smooth. Allow the epoxy to dry.
How to repair a cracked bathtub the right way?
Repair any chips or cracks in the tub with a 2-component epoxy chip repair kit. Follow the instructions to mix the two parts of the epoxy in a small tray. Use a small brush, spatula, or the bottom end of a matchstick to apply thin layers of epoxy to any chips.
How to fix a stress crack in a bathtub?
How to Repair a Cracked Acrylic Bathtub
- Eliminate Flexing. If you have a crack in your acrylic bathtub, the first step is to stop the tub surface from flexing because excessive movement will lead ...
- Halt the Crack. Now that you have stabilized the cavities of the acrylic bathtub, you will need to stop the crack from lengthening or reappearing after you’ve ...
- Fill the Crack. ...
- Sand the Filler. ...
How do I fix a crack in my fiberglass bathtub?
Repair A Cracked Bathtub
- Overview. To repair your cracked bathtub, you’ll need to buy a bathtub repair kit. ...
- Process. Pick up a bathtub repair kit from the hardware store or home improvement center. ...
- Tips and Suggestions. Repairing the bathtub won’t be adequate if the bathtub doesn’t have the support it needs to prevent this from happening again.
How to seal a crack in a bathtub?
- Equip yourself with a grout saw. ...
- Start to grind or work the old grout and the caulking away from between the tiles. ...
- Once you have removed all the loose grout and the overlaying caulking, it’s time to replace it. ...
- After you have applied your grout filler, equip yourself with a grout float and move it diagonally across the tile. ...

Can you fix cracks in a bathtub?
A bathtub chip or crack can be repaired. It is important to fix a crack or chip as it can worsen over time.
How do you repair a crack in a plastic bathtub?
Cover any cracks wider than 1/4 inch with a layer of fiberglass mesh that spans each side of the crack by at least a half inch. Cut the mesh to fit with a utility knife and place it over the crack.
What to use to fix a crack in a bathtub?
0:402:10How to Fix a Cracked or Chipped Bathtub - Epoxy - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe epoxy mixture. So be careful to not press down the syringe yet when you are ready make sure youMoreThe epoxy mixture. So be careful to not press down the syringe yet when you are ready make sure you squeeze the epoxy.
Can a cracked fiberglass tub be repaired?
No matter how bad a crack or an indentation may look, the process is the same as if it was a little pit. In either case, it's surprisingly simple. By using a basic epoxy kit with a few essential items, repairing a fiberglass tub takes as little as one day, with most of that time spent as the compound dries.
How do you tell if a bathtub is fiberglass or acrylic?
Look around the tub's edges and see if it appears thinner; this could be an indication that it is acrylic. Acrylic tubs usually come in more colors than fiberglass tubs, as fiberglass tubs are commonly white. Acrylic also feels warmer to the touch than fiberglass, and tubs made of acrylic have smoother finishes.
Can you repair plastic baths?
Cracks to a plastic bath tub are drilled at the ends of the cracks to avoid the damage progressing any further through the molded plastic. Repairing cracks in a plastic bath tub require patching from the back of the surface with a flexible carbon fiber filler.
Can you caulk a crack in a tub?
Using 100% silicone caulk on your tub or shower enclosure will almost always solve your cracking or separation problems.
How do you fix a crack in the bottom of a fiberglass tub?
Fill the crack with fiberglass filler. Apply the filler with a putty knife, then scrape the surface of the tub with the knife to remove excess putty around the crack. Allow the putty to dry completely before continuing with the repair.
How much does it cost to fix a cracked bathtub?
Fixing a cracked bathtub can cost you between $100 and $300, depending on the materials and length of the crack. Thankfully, it is possible to fix just the crack of the tub instead of having to replace the entire tub. Whether or not you should hire a professional for a job like this is a tricky decision.
What causes a bath tub to crack?
Cracks can form in your bathtub when heavy items are repeatedly dropped onto it. Think large bottles of shampoo being knocked over, or your child slamming toys onto the side of your tub. Every time something heavy comes into contact with your tub, small divots and dents are created.
Will a cracked fiberglass tub leak?
Cracks in your fiberglass tub are more than an aesthetic issue. If you don't get the cracks repaired, they can spread throughout the tub, allowing water to seep through and damage the underlying materials, including your home's structure.
Why did my bathtub crack?
Common Causes of Cracks There are three primary causes of cracks forming on or in your bathtub. Damage can be caused by lack of support, heavy objects, and harsh cleaners. Lack of support underneath your bathtub can be a strong contributor to the downfall of your tub, especially when it comes to fiberglass surfaces.
How do you fix a crack in plastic?
Our favourite is Loctite Super Glue All Plastics. This specialty super glue is designed for plastics, including the hard-to-bond-to polypropylene and polyethylene. It comes with an activator which you apply first and need to allow to dry for 60 seconds.
Can you use flex seal in a bathtub?
It can also make your bathtub, shower, and areas around your toilet look newer and refreshed. Using Flex Shot to caulk an RV shower. Photo courtesy of Melanie Snavely. Over time, traditional caulking products can break down and deteriorate, leaving areas in your bathroom susceptible to costly water damage.
Can you use superglue on bathtub?
Bathroom Repairs Krazy Glue needs a 'trigger' to activate its adhesive properties, which is typically water vapor in the air. Once set and cured, the glue is completely waterproof, making it ideal for bathroom repairs.
How do you fix a crack in a fiberglass shower?
0:075:48How to Repair a Fiberglass Hairline Crack in a Fiberglass BathtubYouTubeStart of suggested clipEnd of suggested clipSander just to kind of get all the loose. Areas knocked off and then smoothing it out a bit. SoMoreSander just to kind of get all the loose. Areas knocked off and then smoothing it out a bit. So after sanding i'm going to go ahead. And pour some resin down over the crack in the holes.
Step 1 - Eliminate Flexing
If you have a crack in your acrylic bathtub, the first step is to stop the tub surface from flexing because excessive movement will lead to the cra...
Step 2 - Halt The Crack
Now that you have stabilized the cavities of the acrylic bathtub, you will need to stop the crack from lengthening or reappearing after you’ve work...
Step 3 - Fill The Crack
To fill the crack, never use an epoxy filler. Instead, use a 2-part polyester filler and mix it according to the instructions on the tin. Apply the...
Step 4 - Sand The Filler
Once the filler has dried fully, sand it down with very light sandpaper. Use progressive grits of paper; start at P320 and finish with P800. Rub li...
Step 5 - Spray The Finish
To achieve the very best results on the finish, invest in a portable sprayer that’s designed for jobs such as this. You can find one at hardware st...
Step 6 - Buff The Tub
To completely finish the tub, you will need to buff it with an auto polish urethane compound. This will give a harder finish and also feather the e...
How to fix a crack in an acrylic tub?
Step 1 - Eliminate Flexing. If you have a crack in your acrylic bathtub, the first step is to stop the tub surface from flexing because excessive movement will lead to the crack reappearing or further cracks forming. To do this, check the entire surface of the tub and find the area where the surface is flexing.
What does it mean when your bathtub cracks?
A crack in your acrylic bathtub means you won't be able to take a bath or a shower without water running through the damaged area. This can end up damaging the subfloor or even causing a leak on the floor below. Follow these directions to repair your cracked acrylic bathtub.
How to fill a crack in a tin?
To fill the crack, never use an epoxy filler. Instead, use a 2-part polyester filler and mix it according to the instructions on the tin. Apply the filler to the crack with a clean rubber spreader until the crack has been completely filled, including the stop-drill holes. Allow the filler to dry completely before you proceed.
