How to Fix a Crack in a Plastic Bathtub

Do you have a crack in your plastic bathtub that needs to be fixed? Have you recently encountered a rather uncomfortable surprise in your bathroom—a dark, jagged line that has formed along the surface of your plastic bathtub? You are not alone.

Thankfully, you can repair this crack with minimal discomfort and expense. In this blog post, we’ll discuss the many ways to reconstruct your once-pristine plastic tub so that it looks good as new.

How to Fix a Crack in a Plastic Bathtub

Repairing this type of surface can seem daunting, but finding the right solution doesn’t have to be a major headache. From temporary patches to complete replacements, attractive solutions abound! Don’t worry — fixing a cracked plastic bathtub doesn’t have to be overwhelming if you have expert tips on how to fix a crack in a plastic bathtub.

So buckle up and join us for an exciting journey into repairing cracks in plastic bathtubs. Let’s explore some straightforward strategies to fix those nasty cracks in your plastic bathtub for good.

What Causes Crack in a Plastic Bathtub?

1. Temperature Fluctuations

Cracks in plastic bathtubs happen for a few reasons. The most common reason is temperature fluctuations, which cause the tub to expand and contract. This can lead to fatigue in the material and eventually result in cracks over time.

Other common causes of cracks include improper installation, excessive weight or stress from leaning on the wall, or even forceful contact with objects that can put pressure on the tub.

2. Improper Installation

Cracks can also be caused by improper installation, which is often due to using the wrong kind of caulk or not following manufacturer instructions. Too much filler in one spot could lead to a crack, as you can not apply enough filler so that it’s properly secured and sealed to the surface.

Using the Wrong Kind of Caulk

It’s important to make sure that the installation is done correctly and with the right materials so that you can avoid cracks in the future.

3. Excessive Weight

Another possible cause of a crack in a plastic tub is excessive weight or force being placed on one area of the bathtub, such as from leaning against it repeatedly. If your tub isn’t properly supported underneath, it can cause the tub to flex and eventually lead to cracking.

Required Items

Now that you know what’s causing the crack, it’s time to figure out how to fix it. The first step is to make sure you have all of the right materials and tools. You’ll need a few items for this project:

  • Plastic epoxy
  • Acetone
  • Sandpaper
  • Sponge
  • Masking tape
  • Plastic scraper
  • Utility knife.

5 Ways How to Fix a Crack in a Plastic Bathtub

1. Temporary Patch

If the crack is minor, you may be able to use a temporary patch kit. These kits generally come with an adhesive patch and filler material that can be used to repair small cracks or holes. The patch should be applied over the top of the crack and pressed firmly until it adheres.

Use a Temporary Patch Kit

2. Epoxy

For more serious cracks, you can use epoxy to fill the gap and then sand down any excess material. You’ll need to clean the area thoroughly with acetone first to remove any dirt or grease that may interfere with proper adhesion. Once the epoxy has cured, you can then sand and buff it until the crack is no longer visible.

3. Acrylic Sealant

Another option for repairing a cracked plastic bathtub is to use an acrylic sealant. This type of product is designed to fill in gaps and cracks while still allowing the surface to remain flexible. Make sure you apply the sealant in thin layers and not too much at once, as this can cause the sealant to crack or peel away over time.

4. Fiberglass Patch

For larger cracks, you may want to consider a fiberglass patch kit. This is a great option for those who need a more permanent repair solution and don’t mind spending some extra money on the materials. The fiberglass patch is applied to the crack and then sanded down until it is smooth.

5. Replace the Tub

If all else fails, you may need to completely replace your plastic bathtub. This can be costly, but it’s a surefire way to get rid of that pesky crack once and for all. It’s also better for your overall peace of mind, as you won’t have to worry about future cracks occurring.

Completely Replace Your Plastic Bathtub

These are just a few of the ways that you can repair your cracked plastic bathtub. Be sure to do your research and know exactly what type of product or repair solution is best for your particular situation before diving in. With the right materials, tools, and a bit of patience, you can have a crack-free bathtub again in no time!

6 Maintenance Tips 

Once you have fixed the crack in your plastic bathtub, taking proper maintenance steps will help keep it from happening again. Here are some tips for maintaining a plastic bathtub to reduce the chances of cracking:

1. Ensure that any cleaning products used on the tub are mild and use only a soft cloth or sponge – no abrasive pads or brushes. Also, never use a cleaner with bleach, as this can damage the finish of the tub. Ensuring that cleaning products are gentle will help preserve the finish of the tub and reduce the risk of cracking.

2. Make sure you rinse off any soap suds or other residue right away. Leaving soap scum or cleaner on the surface for long periods can cause damage to the plastic, possibly leading to a crack.

3. When using bath oils or bubble baths, avoid adding too much. The oils and bubbles can soften or weaken the plastic, making it more susceptible to cracking. A bubble bath is also very slippery, which can increase the chances of slipping and falling on a plastic bathtub.

4. Check for any signs of wear or damage regularly. If you notice any cracks forming, take steps to fix them immediately before they get worse.

5. Avoid putting excessive weight or pressure on the tub when stepping in and out. This puts unnecessary strain on the plastic and can lead to cracks. Weight should be evenly distributed across the entire surface of the tub.

6. Keep it dry when not in use and after every use. Moisture left on the plastic can lead to mildew, which can weaken and damage the material over time. Additionally, make sure that any items stored near or around the bathtub are kept dry as well.

Frequently Asked Questions

Can a Plastic Bathtub Be Fixed?

Yes, a plastic bathtub can be fixed by using an epoxy or polyester resin kit. The method used will depend on the size and type of crack that needs to be repaired. For minor cracks, you should use an epoxy adhesive; for larger cracks, you should opt for a polyester resin kit. Both kits are available at most home improvement stores.

using an epoxy or polyester resin kit

Do I Need Professional Help to Fix a Crack in a Plastic Bathtub?

In most cases, no professional help is needed. With some patience and attention to the steps, you can easily repair a crack in a plastic bathtub yourself. However, if you are not experienced with DIY projects or do not feel confident taking on this task, it is best to hire a professional to assist with the repair.

How Long Does It Take to Fix a Crack in a Plastic Bathtub?

The amount of time required to fix a crack in a plastic bathtub depends on the size and complexity of the crack. For minor cracks, it should only take about an hour to complete the repair; larger cracks may require several hours. It is essential to follow all manufacturer instructions and safety precautions when completing this project.

By following these steps and using the right materials, you can repair a crack in a plastic bathtub yourself. It may take some time and effort, but the result will be a sturdy, safe bathtub that you can enjoy for years to come.

Conclusion

All in all, while fixing a cracked plastic bathtub may seem daunting at first, following the right steps and keeping these few key points in mind, such as proper cleaning and preparation of the surface prior to repairs, using quality materials that are designed for use on plastic, and taking one’s time when making these repairs your cracked tub can be repaired quickly and successfully! Take it one step at a time – no need to rush!

With patience, you can easily fix a crack in your plastic bathtub. Furthermore, if you have any hesitations or doubts about attempting this process yourself, you should not hesitate to seek out professional advice.

All in all, remember, if done properly with high-quality parts and materials, those annoying cricks in your bathtub have no chance against you! Follow these steps on how to fix a crack in a plastic bathtub, and you can get your tub in top shape again!

Photo of author

Jennifer Branett

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