Can You Repair a Plastic Kayak With Fiberglass? Properties – 2022

If you’re a kayaker, then you know that kayaks can take a beating on the water. Sometimes they get scratched, or worse, a hole develops.

So, as a kayaker the question comes to your mind is can you repair a plastic kayak with fiberglass?

Yes, but there are some things to keep in mind before you start repairing your kayak.

In this blog post, we’ll discuss the steps necessary to repair your plastic canoe with fiberglass and what to look out for when doing so. Stay safe on the water!

Note: There are lots of items that you need to keep in mind when you are thinking about repairing the kayak with fiberglass here you get the different repairing materials that you need to buy: Kayak Repairing Kit.

What is Fiberglass and What are its Properties?

Fiberglass is a material that is used to make things like boats and kayaks. Fiberglass works by combining pieces of plastic epoxy resin with actual glass fibers, which makes it possible for companies to create super-strong rods or sheets of material which can be manipulated into any shape necessary.

In essence, fiberglass has two main properties:


Fiberglass is used to make items that need to be resistant, such as boats and kayaks. This material can also be used to create super-strong rods or sheets of material which can be manipulated into any shape necessary.


Fiberglass can bend and twist without breaking, but will return back to its original shape. 

Can You Repair a Plastic Kayak With Fiberglass? Step By Step Process

Yes, you can repair a plastic kayak with fiberglass. This material works great for filling in dents or scratches on your boat, as it provides additional strength to the exterior of the vessel.
However, there are some steps that should be followed to properly attach some fiberglass pieces to your boat.

Step 1: Prepare the Surface

Before you can attach any fiberglass to your boat, you need to make sure that the area or plastic surface is clean. There should be no dirt, dust particles or oil in the area where you will be working. You also need to make sure that this area is completely dry before you continue on with the following steps.

Step 2: Keep the Fiberglass Wet

When working with any fiberglass, you want to make sure that it is kept moist. This makes it much easier for you to attach the pieces of fiberglass properly. You don’t need to keep the area you are filling completely wet, but make sure that there are no dry spots for at least 24 hours.

Step 3: Apply the Resin

After you have attached your fiberglass to the part of your boat where you need to fill in any scratches or dents, it is time to apply some resin. You can use either a polyester or vinyl ester resin. These resins help protect against the sun’s UV rays and other environmental factors that could degrade your boat.

Step 4: Let it Dry

Once you have made sure that the fiberglass stays wet and applied the resin, you need to give it some time to dry. You should let this area dry for at least 24 hours before you go out on the water again. This will allow the resin to cure and form a protective barrier on your kayak.

What to Look Out For When Repairing Your Plastic Kayak With Fiberglass:

There are some common mistakes that people make when they fix their boats themselves and we will outline those below:

Bigger is Better

One mistake that some people make is adding too much fiberglass and resin to their boat. If you use too much fiberglass on your kayak, then it will become more difficult for you to paddle. The extra weight might also cause problems when you go out on the water, making it harder to move around your vessel.

Not Using Enough Resin

Another mistake that some people make is not applying enough resin to their boat. The resin will help protect your boat from all types of environmental factors, so you need to make sure that it is applied properly.

Not Using Waterproof Resin

You should use a waterproof resin on your kayak if you want this repair job to last for an extended period of time. Failure to use this type of resin will cause your boat to degrade over time and you might need to reapply another coat of fiberglass and resin after a few months.

How Much Does it Cost?

The costs of repairing your kayak with fiberglass will depend upon the size of the area you are covering. If you are using fiberglass to fill small holes, then it shouldn’t cost more than $5 per hole. However, if you are filling larger areas on your boat, such as a 15″ x 16″ area, then it will likely cost at least $100 to have it repaired.

It’s also important to keep in mind that fiberglass is a very messy process, and you may need to take additional steps, such as sanding and repainting your kayak after the fiberglass has been applied. These costs should be included in your repair estimates.


In the end, can you repair a plastic kayak with fiberglass? Yes, but it is very important to understand the process to get the fiberglass boat and be careful when applying this material to your boat. Remember that it will take some time to complete this project, so make sure that you set aside enough time in order to do it right.


What is a fiberglass resin patch for kayaks?

You can use a fiberglass resin patch on your kayak to fill in any scratches or dents that you might have. This makes it look new and provides you with a brand new boat surface for your kayak hull. A fiberglass resin patch is typically made from the same material as your kayak, so it will match perfectly and blend in.

Can I use fiberglass to repair plastic?

Yes, you can use fiberglass to repair plastic. Fiberglass is a material that can be used to reinforce or repair many different types of materials, including plastic. When using fiberglass to repair plastic, it is important to choose the right type of fiberglass and resin for the job.

Is there a fiberglass repair kit for kayaks?

Yes, there are several kits available that will allow you to create a patch with your kayak. These kits usually come with patterns so that you can cut out the right size of material and then apply it to your boat. You should make sure that if you choose this type of kit, then pick one that includes a waterproof resin.

Is fiberglass safe?

Fiberglass is considered to be a very safe material, especially when you use it for repairing your kayak. However, you should make sure to keep this material away from small children and pets because if they ingest it, then it could cause problems with their digestive system.

You should also wear safety glasses and a breathing mask when applying this material to your boat so that you don’t breathe it in.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top