Bondo Fiberglass Resin Repair Kit 420

Bondo® Fiberglass Resin Repair Kit, 1/2 Pint Can, 420

  • Part Number: 420
  • UPC: 00076308004200
  • Stock Number: 60455056477
Bondo® Fiberglass Repair Kit 420 has everything needed for the Do-It-Yourselfer, including easy How-To directions, Fiberglass Resin, Liquid Hardener, Plastic Spreader, Fiberglass Cloth, Mixing Stick and Mixing Tray.
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  • Product Description

    Bondo® Fiberglass Repair Kit 420 has everything needed for the Do-It-Yourselfer, including easy How-To directions, Fiberglass Resin, Liquid Hardener, Plastic Spreader, Fiberglass Cloth, Mixing Stick and Mixing Tray.

     

    KIT INCLUDES:

    1 Fiberglass Resin – 6.8 U.S. fl oz (200 mL)

    1 Hardener - 0.20 U.S. fl oz (6 mL)

    1 Fiberglass cloth - 3 sq ft (2780 cm2)

    1 Plastic spreader - 1.75 in x 1.88 in (4.45 cm x 4.78 cm)

    1 Mixing tray - 7 in x 3 ½ in x 2 ¼ in (17,7 cm x 8,8 cm x 5,7 cm)

    1 Mixing stick - 5 ½ in x ½ in (13,9 cm x 1,2 cm)

     

    Additional Items Needed for Repair

    • Paint Brush

    • Rubber Gloves

    • Measuring Cup

    • Sanding Block

    • 3M™ Sandpaper 80 and 180 grit

    • Scissors

    • Acetone or lacquer thinner (for surface cleaning and project clean up)

     

    DIRECTIONS FOR USE (Read all directions and warnings for safe and proper application):

     

    1. Clean repair area with acetone or warm, soapy water to remove all dirt, grease, oil and contaminants. Let dry completely.
    2. Cut away damaged area and loose pieces. Sand the surface with 3M™ Sandpaper 80 grit to remove all primer, paint, rust, or gel-coat. Sand 1-2 inches beyond damaged area and down to bare metal or fiberglass. When possible, both sides of the damaged area should be repaired for added strength. Depress or slightly bend the edges of solid metal inward. Remove all dust created from sanding with a dry cloth or compressed air. Re-clean the surface as in Step 1.
    3. Pre-cut several pieces of Fiberglass Cloth to 1 inch larger than hole. Wearing gloves is recommended for the next steps.
    4. Mixing tips: Working life of mixed resin is approximately 8-12 minutes at 75° F. Mix in small amounts. Mixing large amounts at one time will reduce the working time of the mixed resin. Never mix hardener in the resin bottle. Do not mix the entire container with liquid hardener. Mix Bondo® Fiberglass Resin with Bondo® Fiberglass Resin Liquid Hardener in the mixing tray supplied. DO NOT use waxed cup. Use a push pin or thumbtack to open the hardener tube. Scrape sides and bottom of tray to ensure thorough mixing.
    5. Mix as follows: Mix resin and hardener in mixing tray supplied. Estimate amount of resin needed to saturate Fiberglass Cloth. Ratio of resin to hardener is as follows: For 1 ounce of resin, add 10 drops of hardener or 6 tablespoons of resin with ¼ teaspoon of hardener. Make small batches at a time and mix more as needed.
    6. Brush a coat of mixed resin on the damaged area extending 2-3 inches beyond repair. Place the first layer of Fiberglass Cloth onto mixed resin. Use paint brush to saturate the cloth with mixed resin. A dabbing motion will help saturate the cloth and remove any air pockets. Continue applying additional layers of cloth and mixed resin as needed while the first application is still sticky or wet. If the surface dries hard and is no longer sticky, sand with 3M™ Sandpaper 80 grit before applying additional layers of mixed resin and cloth. Follow the same procedure if both sides are being repaired.
    7. Allow material to cure, approximately 2 hours at 75° F. Curing will take longer at cold temperatures. Once cured, sand repaired area with 3M™ Sandpaper 80 grit. Option: To return the contour or to smooth out low areas in the surface, use a layer of Bondo® Body Filler.
    8. Feather the edge of the repaired area with 3M™ Sandpaper 180 grit to blend the repair into the undamaged surface.
    9. The surface is now ready for paint, primer or gel coat, per the manufacturers’ recommendation.
    10. While resin is still wet, clean paint brush or tools with acetone or lacquer thinner.
    11. Store any unused hardener securely under the dome. Do not put mixed, unused resin back into the container. It will harden the rest of the contents.
  • Additional Product Information

    3M Part Number 420
    UPC 00076308004200
    Case Quantity 6 per case
    Case Inner Pack 1 can
    Size 1/2 Pint Can
    Brand Bondo

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