Slip Stream 24/7 – Global Supply and Distribution Company providing 3M Industrial, Commercial & Safety Solutions
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SKU 7010364421
Legacy SKU 60455068373
UPC 00076308201296
Catalog Number 20129
Product Number 20129

Bondo Fiberglass Mat consists of interlocking strands of fiberglass to repair holes and gaps in jobs of any size from large to small. Use fiberglass mat on anything from automobiles and boats to tubs, showers, sinks, pools, hot tubs and more. Versatile repair material works on most any surface, including metal, fiberglass, and wood.

  • Use With Bondo Fiberglass Resin For Strong Waterproof Repairs
  • USE TO REPAIR holes or cracks in fiberglass, wood and metal
  • Fiberglass Mat Offers Additional Thickness To Provide Structural Reinforcement For Stronger Repairs
  • Waterproof And Paintable
  • Versatile Product Works For Repairing Automobiles, Boats, Tubs, Showers, Sinks, Pools, Hot Tubs And More
  • Creates A Waterproof Repair That Will Not Rust Or Rot
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On it's way to you April 23   


Minimum Order 6 Packs
Order Increment 6 Packs
Product Dimensions
Imperial Metric
Length 8 ft
Shipping Dimensions
Weight 3.5781 lb
Length 9.6248 in
Width 6 in
Height 6.5 in


  1. Is the Bondo® Fiberglass Mat easy to work with for DIY projects?

    Yes, the Bondo® Fiberglass Mat is designed to be easy to use and manipulate, making it great for various DIY applications.

  2. How durable is this fiberglass mat once applied?

    Once applied correctly, the Bondo® Fiberglass Mat provides a strong and durable reinforcement to surfaces such as automotive panels or boats.

  3. Can you paint over the Bondo® Fiberglass Mat after application?

    Yes, you can paint over the Bondo® Fiberglass Mat once it has been adequately prepared and primed for painting.

Ideal Choice for Larger Repairs Where Strength is Essential
Bondo® Fiberglass Mat is slightly thicker than fiberglass cloth and is recommended for more severe repairs, such as larger holes and cracks, where additional strength is required. When used with Bondo® Fiberglass Resin PN 401, 402, 404 (sold separately), the repairs become 100% waterproof. This makes the product ideal for various applications, including automobile, tub, shower, sink, pool, hot tub, and boat repairs. Additionally, it can be used on surfaces like wood, concrete, and metal to provide extremely strong, durable, and waterproof repairs.

Strong, Reinforced Repairs
When used in conjunction with Bondo® Fiberglass Resin, Bondo® Fiberglass Mat reinforces repair areas and allows for repainting, resulting in a seamless repair that matches the original surface. The mat is easy to cut to size and shape, making it suitable for customized repairs on automobiles. It is often used alongside fiberglass cloth and fiberglass resin for repairs. Once the patched area has cured, it can be sanded smoothly to achieve a level surface. A fiberglass repair completed with resin and mat is fully compatible with being painted.

Benefits of Fiberglass Mat
Fiberglass mat is composed of short strands of fiberglass bonded together with a resin. In addition to its reinforcing properties, fiberglass mat offers several other benefits. It does not absorb moisture and is non-flammable. The mat is also resistant to most chemicals.

Repairs Customized to Your Needs
The highly pliable nature of this fiberglass mat allows it to conform to curved surfaces on automobiles. Its flexibility enables customized automotive bodywork repairs on fenders, doors, hoods, and other sections of the car body.

Use During the Fill Stage of the 3M™ Body Repair System
The 3M™ Body Repair System simplifies the automotive body repair process by dividing it into four stages. The fill stage, which is the second stage, involves patching holes with reinforced filler and smoothing and shaping the filler before painting.

Stage 1 - Prepare. This stage includes tasks such as pulling dents, removing paint and rust, and effectively masking the repair area.

Stage 2 - Fill. This stage focuses on patching holes with reinforced filler and ensuring a smooth and shaped surface for painting.

Stage 3 - Paint. This stage involves painting the repaired area and blending and smoothing primer and paint.

Stage 4 - Finish. The final stage aims to achieve showroom-grade results by removing small defects, sealing, and polishing clear coats and other painted surfaces.

3M offers premium products, including abrasives, tapes, body fillers, and tools, for each stage of the body repair process. This comprehensive system ensures easy, efficient, and successful repairs.

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