Fiberglass repairs can be completed successfully once a few key principles are understood. Successful fiberglass repairs will extend the life of your part or mold and save you the cost of replacing the composite part completely. Consider these main principles of fiberglass repair:

  • Initial fabrication of components results in both chemical and physical bonding, whereas repairs only consist of physical bonds.
  • Matching the thickness, density, and ply orientation of the original laminate when possible will result in an overall stronger repair.
  • Increasing the overall surface area of our fiberglass repair will create a stronger finished product.
  • Taper or scarf sanding is the most common method employed to increase surface area.

For an in-depth description of fiberglass repair, please see The Ultimate Fiberglass Repair Guide article in our Learning Center. Shop our most popular selection of fiberglass fabrics, tapes, resins, hardeners, and fairing and filling compounds below!

  • All-In-One Fiberglass Repair Kit

    Everything Needed for a Small to Medium Repair
    5 star rating
    Fiberglass repair can seem like a daunting endeavor, especially for those with limited or no experience. Fibre...
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  • 2 oz Fiberglass Fabric

    Cures as Transparent, Protective Surface Layer
    5 star rating
    Particularly lightweight and thin, our #241 2-ounce Plain Weave Fiberglass is ideally suited as a surface...
  • 7-1/2 oz Fiberglass Fabric

    Most Popular Boat Cloth
    5 star rating
    Commonly referred to as "boat cloth", this plain weave is an industry favorite for waterproofing and protecting...
  • 10 oz Fiberglass Fabric - Style 7500

    Industry Standard for Parts and projects
    5 star rating
    The 10-ounce Plain Weave—also known as Style 7500—is the most frequently chosen boat cloth. It is...
  • Scrim Fabric, White

    Strengthens and Mimics Surrounding Substrate
    5 star rating
    Scrim cloth can be used in repair applications or for reinforcement of other types of materials including...
  • Woven Roving

    Rapid Build and High Strength for Flat Areas
    5 star rating
    Woven Roving provides an inexpensive means to laminate large, flat areas that call for rapid build-up and high...
  • Chopped Strand Mat: 1 1/2 ounce

    Build Quick Thickness for Parts
    5 star rating
    1.5 oz/sq ft, 38" & 50" Wide, 0.045" Thick Chopped Strand Mat is most frequently used with polyester resin to...
  • Mat Tape

    Tear Apart and Reinforce Tough Spots
    5 star rating
    1.5 oz/sq ft mat, 4" Wide, 0.045" Thick Chopped Strand Mat Tape is ideally suited to reinforce the seams,...
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