3M

Bondo Fiberglass Resin Repair Kit 00422 0 9 Quart

$34.25$37.99

231+ bought in the past month

About this item

  • EASY DO-IT-YOURSELF KIT to repair holes and scratches on automobiles, boats and more
  • 100% WATERPROOF seal for long-lasting, durable repairs
  • STRONG AND VERSATILE FORMULA for multiple surfaces including concrete, wood, fiberglass, and metal
  • Sandable in under 2 hours
  • Includes everything that is needed for the DIYer - fiberglass resin, liquid hardener, plastic spreader, fiberglass cloth, mixing stick and mixing tray
$34.25
Was $37.99Save $3.74

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Product details
Brand3M
Specific Uses For ProductRust Repair
MaterialPolyester Resin, Fiberglass
Item FormLiquid
Special FeatureEASY DO-IT-YOURSELF KIT to repair holes and scratches on automobiles, boats and more

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Customer reviews

4.51,200 ratings
  1. 588%
  2. 413%
  3. 30%
  4. 20%
  5. 10%

Customers say

Customers find the fiberglass repair kit works well, with one mentioning its success on a large tub crack.

★★★★★

First time with fiberglass & it went well

customerx2015June 12, 2015✓ Verified purchase

It worked just like the instructions and the multiple online reviews said it would. It was actually fun to use. A few recommendations: (1) If this is a first time for using fiberglass, read others' reviews of this kit plus some online guides on the hazards of fiberglass lay-up and then watch at least several videos on fiberglassing techniques on YouTube. Be aware that some of the videos contain errors. (2) If used as directed, this kit is safe. However, there are multiple fire and health hazards involved in using this kit if you are careless. Wear a face mask filter designed for working with fiberglass and a pair of eye protectors. Exercise caution with what chemicals you are mixing, and prevent the spread of fibers from the cloth and/or dust from sanding dried fiberglass. Before laundering clothes that may have fiberglass in them read articles on laundering clothes after working with fiberglass insulation. (3) To make sure I had the right amount of resin in each batch for my small job I went to a Bed, Bath, and Beyond and bought a glass drink-mixing jigger glass and a small glass measuring cup. I never needed more than eight ounces of resin, and the cup was usually perfect. To measure the hardener for small jobs your only option is to patiently squeeze and count the drops one by one. It doesn't take that long. I mixed the two parts in old jelly jars I had cleaned and dried. Some plastic cups (including the red Solo cups I tried) will dissolve if you mix the fiberglass in them, but real glass won't. (4) Use very sharp scissors to cut the cloth; give yourself a large clear work surface; and ensure adequate ventilation. (5) If you want to buy more of the cloth in the kit, remember to order fiberglass cloth and not fiberglass mat, which is different and harder to work with. (6) Acetone is a superior clean-up material for this job, but it is very flammable, and it can react badly with some other chemicals. (7) Clean up very carefully, especially the fibers. I used a vacuum with a HEPA filtration system. It takes a little preparation to do it right, but it was fun, and the object I repaired is now stronger and much more rust resistant. Read more

★★★★★

Good, small starter kit.

JWJuly 26, 2025✓ Verified purchase

Small kit containing 1 can of resin, fiberglass mat, a small mixing tray which fits the top of the resin can, a wooden mixing stick, and 1 plastic smoothing tool. Read more

★★★★☆

Good product

RichardDecember 16, 2025✓ Verified purchase

Works great. Read more

★★★★★

great product. end results are great

AndreApril 10, 2025✓ Verified purchase

the product is great, just hard to work with if you don't have much experience. With patience, the end results were really good. Read more

★★★★★

Easy to work with and solid results

Frank LukeAugust 26, 2023✓ Verified purchase

I am not an expert when it comes to rust repairs but I found working with this fiberglass kit pretty easy. Used to patch two nasty rust holes behind and underneath the battery tray, the fiberglass hardened beautifully and was easy to paint afterward. No more water leaking into the vehicle's cabin and I believe this fix will last for a long time, probably outliving the car. Read more

★★★★★

Bondo repair

GilmerallenNovember 16, 2025✓ Verified purchase

Just like I wanted Read more

★★★★★

Good

Adrián ortegaOctober 5, 2025✓ Verified purchase

Good Read more

★★★★★

Would order again

kellyJune 6, 2025✓ Verified purchase

Stinks to high heaven but a very good product. Make sure all your prep is done because there’s not much working time. Read more

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