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3M Bondo Short Strand Fiberglass Reinforced Filler 1.37 LB (621 g) with Bondo Cream Hardener 0.5 oz (14g), Repair Holes Up To 0.5 IN, Waterproof (SS-PT-ES)
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3M Bondo Short Strand Fiberglass Reinforced Filler 1.37 LB (621 g) with Bondo Cream Hardener 0.5 oz (14g), Repair Holes Up To 0.5 IN, Waterproof (SS-PT-ES)
Fiberglass strands and fibers make it twice as strong as regular body filler
3M Bondo Short Strand Fiberglass Reinforced Filler 1.37 LB (621 g) with Bondo Cream Hardener 0.5 oz (14g), Repair Holes Up To 0.5 IN, Waterproof (SS-PT-ES)
Item #: 44773872

3M Bondo Short Strand Fiberglass Reinforced Filler 1.37 LB (621 g) with Bondo Cream Hardener 0.5 oz (14g), Repair Holes Up To 0.5 IN, Waterproof

Item #: 44773872

NAD 679

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

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Order now and get it around Wednesday, July 22
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Fiberglass strands and fibers make it twice as strong as regular body filler
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What Stands Out

Strong Reinforcement
Contains fiberglass strands that provide exceptional strength for repairs, ensuring durability and long-lasting results when fixing holes and imperfections.
Waterproof Repair
Designed to be waterproof, this filler is ideal for automotive and marine applications, preventing water damage and ensuring reliability in wet conditions.
Quick Curing
Includes Bondo cream hardener that enables rapid setting, allowing users to complete repairs efficiently and get back to their projects in a timely manner.

Product Details

Shop the Best Selection of Bondo-Glass Reinforced Filler at Ubuy Namibia. High-quality and durable filler for all your repair needs. Order now!
Item Weight1.4 lbs (640 grams)

Who Should Buy?

Suitable For
  • DIY Enthusiasts

    Ideal for home repair projects involving small holes or cracks on fiberglass surfaces or other materials.

  • Marine Users

    Great for waterproof repairs on boats and other marine equipment, preventing water damage and rot.

  • Automotive Repairs

    Perfect for fixing small dents and holes in car bodies, especially those made from fiberglass or aluminum.

Not Suitable For
  • Larger Damages

    Not suitable for repairing larger holes or structural damage requiring extensive reinforcement or professional intervention.

  • Sanding and Paint

    Not ideal for applications needing a smooth finish as it may require extensive sanding before painting.

  • Heavy Load Areas

    Inadequate for structural repairs on areas subjected to heavy loads or stress, as it might not hold sufficiently.

Product Description

3M Bondo Short Strand Fiberglass Reinforced Filler 1.37 LB (621 g) with Bondo Cream Hardener 0.5 oz (14g), Repair Holes Up To 0.5 IN, Waterproof (SS-PT-ES)

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is 3M Bondo Short Strand Fiberglass Reinforced Filler used for?

    Answer: 3M Bondo Short Strand Fiberglass Reinforced Filler is designed for repairing holes, cracks, and dents in fiberglass and metal surfaces. This filler is ideal for automotive body repair and marine applications, providing a strong, lasting bond that withstands water exposure. Its fiberglass reinforcement makes it especially effective for creating structural repairs that require durability while also being sandable for a smooth finish during the finishing process.
  • Question: How do you mix Bondo Cream Hardener with the filler?

    Answer: To mix Bondo Cream Hardener with the filler, squeeze the hardener tube to dispense a small amount onto the filler. A typical mixing ratio is 1.5% hardener to the filler. Use a mixing stick to thoroughly combine both components until the mixture is uniform in color. Proper mixing is crucial, as it ensures optimal curing and adhesion when applied. This process allows for effective repairs to any surfaces needing reinforcement and restoration.
  • Question: Is the Bondo fiberglass filler waterproof?

    Answer: Yes, the Bondo fiberglass filler is waterproof once cured, making it an excellent choice for repairs exposed to moisture. This property ensures that the repaired area resists water damage and maintains its integrity even in harsh conditions, such as in marine environments or on vehicles subject to rain. Utilizing this filler helps prevent future problems related to water exposure, especially when used correctly with appropriate surface preparation.
  • Question: What surfaces can you use this filler on?

    Answer: 3M Bondo Short Strand Fiberglass Reinforced Filler can be used on multiple surfaces, including fiberglass, metal, wood, and certain composites. This versatility makes it suitable for automotive repairs, home projects, such as fixing damaged furniture, and marine applications. Its strong grip ensures that the repairs hold up over time, making it a preferred choice for both professionals and DIY enthusiasts.
  • Question: How thick can you apply the Bondo fiberglass filler?

    Answer: You can apply 3M Bondo fiberglass filler in thicknesses up to 0.5 inches for effective repairs. This allows for the filling of significant gaps, holes, or cracks while still ensuring the filler cures properly. However, it's advisable to apply the filler in layers for thicker repairs, allowing each layer to cure before adding additional material. This technique enhances strength and stability in the finished repair.
  • Question: How long does it take for Bondo to cure completely?

    Answer: The curing time for 3M Bondo Short Strand Fiberglass Reinforced Filler can vary depending on ambient temperature and humidity, but it generally cures in about 20 to 30 minutes. After this period, it can be sanded and shaped. However, for the best results, allow a complete cure of 24 hours before painting or applying any other surface coatings. This ensures maximum durability and adhesion for your repair work.
  • Question: Can you sand this filler, and if so, how?

    Answer: Yes, once 3M Bondo fiberglass filler is fully cured, it can be sanded to achieve a smooth finish. Use sandpaper with a range of grits, starting from medium to finish with finer grits for a polished look. Sanding helps to shape the repair to match the surrounding surface seamlessly. This step is crucial for aesthetic purposes and ensures that the repair is flush with the original material.
  • Question: Is this product suitable for automotive use?

    Answer: Absolutely! 3M Bondo Short Strand Fiberglass Reinforced Filler is specifically formulated for automotive repairs. Its strong adhesion and waterproof properties make it ideal for repairing body panels, fenders, and other critical components. The fiberglass reinforcement enhances strength, making it a preferred choice for auto body shops and DIY car enthusiasts looking to perform effective, durable repairs.
  • Question: What should I do if I have leftover filler?

    Answer: If you have leftover 3M Bondo fiberglass filler, it’s best to store it properly to maintain its effectiveness. Seal the container tightly and store it in a cool, dry place away from direct sunlight. Avoid letting it exceed its shelf life as the filler may harden and become unusable. Keeping it stored properly can allow for future projects without needing to purchase more filler unnecessarily.
  • Question: Where can I buy 3M Bondo Short Strand Fiberglass Reinforced Filler?

    Answer: You can purchase 3M Bondo Short Strand Fiberglass Reinforced Filler at Ubuy in Namibia. Ubuy offers a wide range of 3M products, ensuring that you can find this specific filler along with its Bondo Cream Hardener easily. Shopping on Ubuy provides a convenient option to get the right tools for your repair needs.

bondo Putty Editorial Review

Bondo Hair Long Strand Fiberglass Reinforced Filler is a versatile polyester-based product that works well for repairing holes, dents, gouges, and gaps in wood, metal, concrete, and fiberglass surfaces. It can also be used on boats, surfboards, and other marine applications. This filler contains long fiberglass strands that provide superior strength and durability to the repaired area while minimizing cracking and shrinking. The product comes with a tube of hardener that is enough to mix with the entire can of filler. The dry time is reasonable, and after sanding, the surface is ready for primer and paint.

Customer Reviews & Ratings

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Pros

  • Contains long fiberglass strands that provide superior strength and durability
  • Can be used on various surfaces including wood, metal, concrete, and fiberglass
  • Works well for boat and marine applications
  • Comes with a tube of hardener that is enough for the entire can of filler
  • Reasonable dry time
  • After sanding, the surface is ready for primer and paint

Cons

  • Some customers found the product difficult to work with and not adhering

Platform Trust & Buyer Confidence

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MT
Mohd
Verified buyer

“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
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“Accurate delivery timing given”

16 June 2026 · via Trustpilot
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Youcef
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“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
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Leila
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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
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NAD 679

Order now and get it around Wednesday, July 22

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Fastest cross-border delivery

Features & Benefits

  • Twice as strong as regular body filler
  • Covers small holes without the need for backing strips, resin or cloth
  • Excellent foundation for hole, dent, and rust-out repair
  • Quick sanding in as little as 20 minutes
  • Compatible with most paints
  • Not for consumer sale or use, for industrial/occupational use only

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