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  • Writer's picturePlasTech Services Inc.

How to select the right fiberglass repair material

Updated: Dec 12, 2022

As a professional fiberglass repair company, we receive requests to repair or custom fabricate all things fiberglass.

  • Fiberglass Boats

  • Fiberglass Chairs

  • Fiberglass Tables

  • Fiberglass Piping

  • Fiberglass Tanks

  • Fiberglass Aquariums

We operate in the industrial industry, so we specialize in chemical-resistant fiberglass repairs, piping, tank repair, or any fiberglass material that requires an industrial-level certification. If you're a maintenance manager, process engineer, or in need of procuring fiberglass specialists in the industrial sector, please call us at 1-410-737-4700 or send us an email at


When making fiberglass repairs, not all fiberglass repair material is created equal. Here's what you need to know when selecting suitable fiberglass repair material.

If your fiberglass has sustained damage, repairing it with the right fiberglass repair material is key to ensuring that your repair is reliable and seaworthy. The right fiberglass material will ensure that the damage is repaired correctly and will not be easily identifiable. To make sure you’re selecting the right repair material, here are some tips:

1. Consider the type of fiberglass damage.

Different materials are best suited to specific types of damage. For instance, if you’re dealing with minor scratches and gouges in the fiberglass, a general-purpose repair kit – with a combination of resin and putty-like filler – can make quick work of the repair. However, if the damage is more extensive, such as a large crack, you would need a stronger material, such as a polyester resin or a vinylester resin.

2. Consider the environment of the fiberglass repair.

Depending on the environment in which your fiberglass repair will be used, you may need to select a repair material that is chemical resistant grade, heat grade, or marine grade and designed to stand up to the elements. This is especially important for fiberglass material in chemical areas, saltwater, or extreme weather conditions.

3. Check fiberglass repair compatibility.

Before you purchase a repair material, check that it is compatible with the type of fiberglass your fiberglass structure is made from. Most repair materials are designed to be used on specific types of fiberglass, and some materials may not work on certain types of boats.

4. Consider the ease of use of fiberglass repair materials.

When selecting a repair material, it’s important to consider how easy it is to use. If the material is too difficult to work with, the repair may not hold up in the long run. Look for materials that come with clear instructions and, ideally ones that come with a handy mixing guide.

5. Consider the safety element before making a fiberglass repair.

Furthermore, follow all safety guidelines when handling and storing fiberglass repair materials. Importantly, materials like polyester or vinylester resin are flammable and have previously led to fatalities. Additionally, consider the location of the repair. Do you need a confined space certification? Do you need scaffolding?


Making sure you select the right fiberglass repair material can help ensure that your boat remains reliable and seaworthy. By considering the type of damage, the environment, the compatibility, and the ease of use, you can select the best fiberglass repair material for the job.

Need Help?

If you're a maintenance manager, process engineer, or in need of procuring fiberglass specialists in the industrial sector, please call us at 1-410-737-4700 or send us an email at

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