Bondo Glass Short Strand Reinforced Fiberglass Filler,Stage 2, 2.56 Oz Filler and 1 Oz Cream Hardener

The fiberglass allows larger holes to be covered without the need for welding metal to bridge a hole that is maybe an inch or so across. Sand or grind to bare metal and dry with 90% rubbing alcohol before using it for the longest-lasting, best adherence to the hole patch. If you can, make sure to apply from both sides and leave no bare metal behind it. If you need to apply on rust, get a quality Rust Reformer first, spray with several coats, let dry between coats, then with medium steel wool, rough up the surface for better paint adhesion.

I was looking for budget priced fiberglass filler for filling gaps in a floorpan repair on my 95 Jeep XJ. It didnt have to look good, just stick, fill and be watertight. This stuff worked well and hardened up in about 5 minutes. It was smooth like spreading icing on a cake, much smoother than the high-priced long-hair I have used in the past, and about one third the price.

This stuff is really nice. I had a rust hole to fix and was thinking of getting fiber cloth and epoxy, but gave this a try instead. Worked like a dream. O and its super strong.Tipsstirring the hardener in dosnt really work, you need to fold it in. it will turn to a rusty brown colorfor a hole tape bottom so product dose not fall through. pull tape and put a 2nd coat from the bottom once first side of hole has hardenedput your bondo on a piece of wax paper to apply. You can smooth it out under the paper and remove the paper when its dry and you are left with a smooth repair ( saw this tip in another review. so credit gose to them for this one)Clean up is a breeze with spray carburetor cleaner. you can clean tools or mixing board. if you need to clean your hands spray it on a rag and wipe your hands. it you just spray it on your hands it will dry them out or find a cut you didn't know you had. This cleaner works with normal body filler as well.

Compared to long strand fiberglass resin or plain ole Bondo, this is getting to be more expensive and tougher to find … but it works when you need it!

Worked great to fill a small void in my boat. Sand then gel coat over it. Works perfectly. Keep in mind this is fiberglass, not standard automotive bondo. Sets up quickly.

My days of buying this stuff by the gallon are done but I did need a little for a project, this quart was perfect. It's just like duraglass. Good for repairs that require filling holes that are too deep for bondo.

worked perfectly at reasonable cost

Worked great to fill in holes in a fiberglass panel walls that was coated with an epoxy gel coat. I lightly sanded the surface with sandpaper before applying and the produce adhered to the wall and holes great! Dried quickly and was easy to sand. Highly recommend!!