Auto body filler is a type of body repair material that is used to fill in small holes, dents, and scratches in a vehicle’s body. It is made from a variety of materials, including fiberglass, plastic, and metal.
Body filler is available in both liquid and solid form, and can be applied with a brush, roller, or spray gun. Once applied, body filler will harden and can be sanded, primed, and painted.
20 Best Auto Body Filler For Rust
1. 3M 31591 Bondo Rust Hole Repair Kit
Start by pulling dents removal of paint and rust effective masking of the area Fill
Next start patching holes with reinforced filler and smoothing and shaping filler before painting Paint
Next startpainting the area and blending and smoothing primer and paint Finish
The Bondo Complete Dent Repair Kit provides everything you need for convenient dent repair. It features the well-known Bondo brand, trusted by auto body professionals. This kit is excellent for use as part of a complete body repair system from 3M.
Reach for Bondo Professional Gold Filler to easily fix scratches and dents on your vehicle and much more. This high quality professional grade filler is made from state-of-the-art polyester resin technology.
The body filler is easy to apply to cracked surfaces. Simply mix, apply over the damaged area and smooth to perfection. It’s also extremely easy to sand, facilitating an even match with the existing surface for a seamless finish.
The superior adhesion ability of Bondo filler, 1 quart adds integrity to the repaired area. It can be used on multiple surface types including fiberglass, wood and steel to restore the flawless appearance of car, boat, trailer and truck exteriors.
Surface Preparation: Grind/sand surface with 24 to 80 grit sandpaper down to the bare metal. Prepare surface 2 to 3 inches beyond the damaged area at each side. Clean surface free of dirt, oil, grease, paint, rust and moisture. Mixing: Knead cream hardener tube thoroughly before using. Mix 3 inch diameter circle, 1/2 inch thick of filler to 3-inch strip of cream hardener. Mix only in small amounts that can be used in 3 to 4 minutes. Application: Spread initial layer of mixture over surface using firm pressure to ensure maximum adhesion. Do not apply filler too thick; it is better to apply in two applications. Do not return unused mixed material back to the can. Finishing: File/cheesegrate 8 to 12 minutes after application. After 20-25 minutes, sand and featheredge to desired contour. Use 80 grit sandpaper for sanding and finer sandpaper for featheredging. Wait approximately 45 minutes to 1 hour, then prime and paint following manufacturer’s recommendations. For best results, apply at 45 degrees F or above. For cleanup, use acetone.
Flammable liquid and vapor. Harmful if inhaled. Vapor harmful. May affect the brain or nervous system causing dizziness, headache or nausea. Causes skin, eye, nose and throat irritation. Notice: Reports have associated repeated and prolonged occupational overexposure to solvents with permanent brain and nervous system damage. Intentional misuse by deliberately concentrating and inhaling the contents may be harmful or fatal. Keep away from heat, sparks and flame. Vapors may cause flash fire. Do not smoke. Extinguish all flames and pilot lights, and turn off stoves, heaters, electric motors and other sources of ignition during use and until all vapors are gone. Prevent build-up of vapors by opening all windows and doors to achieve cross-ventilation. Use only with adequate ventilation. Do not breathe vapors or sanding dust. Ensure fresh air entry during application and drying. If you experience eye watering, headache or dizziness, wear an appropriate, properly fitted respirator (NIOSH approved) during and after application. Follow respirator manufacturer’s directions for respirator use. Sanding dust contains Quartz which can cause cancer. Avoid contact with eyes, skin and clothing. Wear solvent resistant gloves. Wash thoroughly after handling. Close container after use. First Aid: In case of eye contact, flush immediately with plenty of water for at least 15 minutes and get medical attention immediately; for skin, wash thoroughly with soap and water. If you experience difficulty in breathing, leave the area to obtain fresh air. If continued difficulty is experienced, get medical attention immediately. If swallowed, do not induce vomiting. Get medical attention immediately. If spilled, contain and dispose of spilled material and remove with inert absorbent. Dispose of contaminated absorbent, container and unused contents in accordance with local, state and federal regulations. Photochemically Reactive: VOC: 1.5 lb/gal or 178 g/l. This product contains a chemical known to the state of California to cause cancer and birth defects, or other reproductive harm.
Reviews From Real Customers
Professional body filler companies use’Gold’ to signify their top of line. Bondo has used the Gold moniker to show that it is their best, also. Compared to Pro products, Bondo Gold is hard to spread and nearly impossible to sand.
It clogs even high cost clogless sandpaper. I was expecting so much more from this product.
Repair Kits are the same top quality Bondo products used to repair dents, rust holes, scratches and other body repairs. These easy-to-use body repair kits are all you need to get started. Step-by-step instructions are included, and a toll-free help line is available if you require additional technical support.
Kits include Body Filler, Red Cream Hardener, Self-Adhesive Metal Body Patch and Spreader.
For the professional quality do it yourself auto body repair Bondo professional gold body repair kit combines the highest technologies offered by 3M for auto body filling. The body filler is formulated to bond with a variety of surfaces including galvanized e-coat as well as wood metal aluminum fiberglass SMC epoxy and more.
The body filler also features superior 3M resin technology which makes it easy to mix apply and sand. The filler is compatible for use with protective car film. The filler and hardener mixture spreads smoothly over auto body surfaces and penetrates into scratches holes and dents.
It provides a 3 to 5 min working time cures in 20 min for reduced downtime and sands easily into a smooth surface for painting. It is non-shrinking non-reactive and permanently durable. Water-resistance limits rust.
3M cream hardener 3M self-adhesive metal body patch spreader and step by step instructions.
Cures fast and shapes in minutes allowing same day completion of repairs Spreads easy and sands in only 20 minutes Includes cream hardener Great for use on wood, metal, aluminum, fiberglass, masonry, and concrete and compatible with all paint systems Right size for the job.
From the industry leading body filler comes a single use product meant for small repairs. Bondo Body Filler Single quickly and easily fills in dents, scrapes, chips, cracks, and rust holes. Because it is specially designed to be non-shrinking and permanently durable, this reliable filler is great for a wide variety of automotive, home, and hobby projects.
I got walmarted: bought a a1. 75lb can and it has no hardener tube. the directions on the can don’t mention it either. good thing i looked online to see that it needed hardener or i would have goopy putty all over the boat.
Bondo-Glass is a unique reinforced filler containing short, interlocking fiberglass strands and fibers that make it twice as strong as regular body filler. Repairs small (dime size or smaller) rusted-out metal holes and shattered fiberglass body parts.
Works great on boats! Eliminates the need for backing strips, fiberglass resin or cloth on small holes and rusted-out areas. Sandable in only 20 minutes and compatible with all paint systems. Waterproof.
This is another top notch body product from 3M-Bondo company. This product price cannot be beat anywhere. I run a small Classic Saab 900 restoration shop and we use alot of this filler in conjunction with WOVEN fiberglass cloth.
Remember that this is called short strand, not Bondo Hair.
Rage A premium lightweight body filler formulated with the finest resin available. Tack free and stain resistant, which extends the life of sandpaper and reduces the chance of staining. Superior spreading and sanding properties eliminate the need for cheese grating or sanding with coarse papers.
Advanced formula with ZNX-7 provides superior adhesion to galvanized steel, aluminum, SMC and sanded OEM finishes. Part of the MetalWorks System. Blue cream hardener included.
First time using this product and not too crazy about it. It lays down too thin and does not shape well. Product dries very quickly, but sands out easily. I have used other brands before and probably wouldn’t use this one again.
This Bondo Body Repair Kit contains everything you need to repair dents, rust holes, scratches and more on vehicle bodies and panels. Along with step-by-step instructions, this kit contains Red Cream Hardener, a Self-Adhesive Metal Body Patch, a spreader and the original Bondo Body Filler the materials used by collision repair pros, in a money-saving kit for auto body repairs large and small.
Auto body work requires the right materials for strong, durable and efficient repairs. Thats what makes this Bondo Body Repair Kit an ideal solution. In each kit, youll find all the same materials that the professionals use, plus step-by-step instructions, all from the brand known among professional collision repair shops for more than 60 years.
Each Bondo Body Repair Kit includes: Even a small repair can seem complex at first. So 3Ms Body Repair System simplifies the entire automotive body repair process by dividing it into four stages: As a brand of 3M, Bondo is well known among collision repair professionals.
This body repair kit featuring the same proven products used by the pros for more than 60 years is another way that 3M applies science to life, and helps you restore and maintain the beauty and value of the vehicles you own.
The product itself worked as expected and would normally garner a 4 star review. Unfortunately the delivery was delayed for some unknown reason and the product I received was dented but luckily not cracked so minus too stars.
Though this didn’t effect the performance of the product in regards to it’s purpose, if I had ordered a fragile object it would have likely been broken upon receipt. So I was basically lucky that my product wasn’t broken in a way that I couldn’t use it.
Bondo Auto Body Filler is a two-part putty compound that can be used to repair dents, dings, holes, rusted areas and scratches in vehicle exteriors. Bondo Body Filler cures fast, shapes in minutes and is formulated to be a non-shrinking and permanently durable material.
In addition to its uses on vehicle exteriors and other metal surfaces it is also a suitable repair option for wood, fiberglass and concrete. WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www. P65Warnings. ca. gov.
Color : White Size : 1 qt 3M Lightweight Body Filler repairs dents, dings, and other cosmetic imperfections on bare steel, aluminum and fiberglass reinforced polyester (FRP). Our automotive body filler may also be used on many industrial and architectural surfaces needing cosmetic repairs.
3M Lightweight Body Filler comes in a creamy formula that is easy to mix, spread and sand. Manufactured with only the highest quality ingredients, our auto body filler is vacuum processed to minimize pinholes.
The filler cures tack free in 20 minutes with good handling characteristics. It resists loading sandpaper, so sanding is easier and you can use less abrasives. This is a two-component product that includes both filler and cream hardener.
Super lightweight auto body filler that applies without sagging. Lets you file or sand in minutes to even days later. Requires less sanding to reduce dust and clogging. Feather edges superbly. Cures under humid conditions.
Blue creme hardener included. Super lightweight auto body filler that applies without sagging. Lets you file or sand in minutes to even days later. Requires less sanding to reduce dust and clogging. Feather edges superbly.
Cures under humid conditions. Red creme hardener included.
Evercoat Lite-Weight is excellent body filler. It’s listed incorrectly here as it’s not Fiberglass, but is 2 part polyester filler. Evercoat sands and blends nicely, the edges feather nicely. It’s great body filler, highly recommend for small to large areas.
This filler works as advertised , easy to sand spreads well. The only thing is when using the catalyst you might want to use a little less than they call for, it does go off kind of fast so you working time to apply the it to you working area is limited.
Sand really easy and does not clog the sand paper.
smooth creamy, easy to apply, dries without leaving any film to clog sand paper. you can even sand with out cheese grading first. does not clog sand paper. comes with cream hardner, best I have ever used for the value, works like expensive fillers.
I’ve bought other types of body filler in the past, and this stuff just does not get hard enough. Tried different amounts of hardener, waited days before sanding and yet it still isn’t as hard as I would like.
Its unparalleled sanding qualities are a result of the patent pending formula that contains renewable technology. Its non-sag formula has excellent filling properties, while eliminating the need for finishing putty.
Rage Ultra contains ZNX-7 and is part of the Metalworks system. 5″ L x 6. 5″ W x 7. 5″ H.
Best body filler I’ve ever used. I am not a body man but this stuff made me look like a pro. I’m really a mechanic who may fix a dent or rust hole every once in a while. I mainly hate body work because of the endless chore of sanding and feathering.
Just don’t have the patience. I could not believe how smooth this stuff goes on and how easy it is to sand and feather out. No pin holes either if you mix it properly. Made me real proud of myself. Took it down in 2 steps.
First 150 grit, then 320. Was done in no time on a rear quarter rust through. So glad I read the reviews on it and watched a You Tube video first. Took away all of my anxiety about body filler. Would have posted pictures but I’m 63 years old and my computer skills are worse than my auto body skills.
Fastest drying Bondo brand filler. Paintable, permanent, and non-shrinking. Suitable for metals, wood, fiberglass, masonry, and concrete. Fast dry formula for repairing dents, dings, holes, large rusted areas and scratches.
Sandable in 15 only minutes. Spreads easy and provides a smooth professional finish for same day repairs. Two-part lightweight compound mixes easily and spreads smoothly. Bondo Professional Fast Dry Filler is the fastest drying Bondo product available.
It’s easier to use than traditional fillers, contains a boosted fast drying adhesion for swift repairs, and leaves a smooth finish without shrinking or cracking. Get fast and durable repairs done the right way the first time with Bondo Professional Fast Dry Filler!.
USC all-metal Specialty Body Filler is the world’s first aluminum-filled automotive compound. Easy to spread and use all-metal repairs metal with metal with the workability of a premium body filler. Because of its excellent adhesion all-metal is ideal for restoration and classic car repairs.
USC all-metal can be drilled or tapped is waterproof and can be powder coated.
THIS IS THE STUFF TO BUY WHEN YOU WANT THE BEST – I USE IT OVER ALUMINUM PANELS SO IT LOOKS GOOD AND IS MUCH TOUGHER THAN YOUR TYPICAL BODY FILLER – SUMMITS PRICE IS LESS THAN HALF OF WHAT MY LOCAL AUTOMOTIVE PAINT STORE CHARGES – SUMMIT HAS ALWAYS BEEN VERY GOOD TO ME AND THEY HAVE GREAT PRICES TOO.
For auto and home repairs that require extra strength without the extra time and effort, our Bondo Metal Reinforced Filler combines the fast, easy mixing and spreading of traditional body filler with exceptional strength.
This simple 2-part filler is reinforced with aluminum great for use on fiberglass, metal, aluminum and even wood or masonry. Metal Reinforced Filler includes a small tube of hardener. It mixes quickly, spreads and layers easily into sanded repair areas and affords a working time of up to 5 minutes, and it dries in as little as 20 minutes for fast, easy repair.
Like metal, the fully cured filler is strong enough to be drilled, tapped into or anchored great for cosmetic repairs to auto parts such as frames, pillars and outer rocker panels, auto restoration and more.
Used the Bondo Metal Reinforced Filler to repair 4 metal residential door which where rusted out and had very little inter body core left. After several layers and sanding th3 doors are restored to new condition.
This repair replaced me $2500 in door cost and $1500 in labor for $25 on bondo, 25 in paint and 10 in sandpaper. Very impressive amd highly recommended use follow the instructions for great results.
I used the Bondo 90451 to refurbish a beat-up gun safe. This filler dries hard but works easy and finishes nice. Just follow the directions. I used a popsicle stick for a spreader. After 3 coats even the biggest dent was ready to paint.
Product features the world’s first aluminum filled repair compound preferred product for restoration work and classic car repairs excellent adhesion to metals or wood. Can be drilled and tapped prevents bleed-through and bleaching ideal for metal leveling and mending, rust repair, use over spot welds and as a finish or barrier coat over all types of fillers aluminum-filled, rustproof and waterproof body filler requires minimal shaping or grinding.
Has the look and feel of lead includes all-metal liquid reactor. Item weight: 3 lbs. Upc: 0037307140603.
Bought a can about six weeks ago for the impact surface of the back of a trailer where the tail gate comes up against the steel surface. Had needed to weld the seams back together due to modifications and wanted a smooth tough impact resistant surface after weld grinding.
Worked great. Pretty thick so mixing is a bit of effort with the hardener. Mix thoroughly like Bondo. Apply quickly as sets up fast. Side of can was caved in when received. Obviously shipped that way by Eastwood.
Indicated to me a lack of caring and made product hard to access in can.
This stuff is trash. They advertise to the best filler for powder coating. This stuff is a joke,bubbled up made the paint crack then the whole chunk of filler just fell out wasted my time my money and my powder coat and my clear.
Be sure to add enough hardener, it’s not quite as forgiving as polyester filler. Be ready to apply to area asap, short work time. All metal sets up extremely hard and sticks very aggressively, good for sealing in any repair.
Can be used with steel. Cure time should always be considered on any application or project. Once applied, this product requires a 10 min cure time before it is fully set and provides maximum strength.
This industry leading body filler quickly and easily fills in dents, scrapes, chips, cracks, and rust holes. Because it is specially designed to be non-shrinking and permanently durable, this reliable filler is great for a wide variety of automotive, home, and hobby projects.
Experience the accomplishment of completing a repair or restoration with Bondo Body Filler. Repairs dents, patches rust holes, leaks and fills in chips quickly and easily. Easy mix ratios make it convenient to measure.
Spreads easily and sands in just 20 minutes. Finish auto body projects the same day you start. Compatible with all paint systems. Includes Red Cream Hardener.
Bondo Glass Reinforced Filler is a unique reinforced body filler containing short, interlocking fiberglass strands and fibers that makes it stronger than regular body filler. The fiberglass in the filler eliminates the need for backing strips, fiberglass resin or cloth on small holes and rusted-out areas.
It is capable of repairing small rusted-out metal holes and shattered fiberglass body parts. It is compatible with all paint systems and also works great on boats.
I liked the fact that this product worked as well as the professional products I buy from the local automotive paint supplier. I used the product on a fiberglass roll pan to add structure and strength.
I figured, since it was made by 3M it would not be a disappointed. I was impressed with it.
Bondo Glass applies as easy as any filler (although a little bulky due to the fiber strands). Sometimes difficult to sand down so I hit it with the body file/rasp first. It is advertised as “twice as strong as regular body filler” but in my experience it is much stronger.
I wouldn’t trust any other product for this scenario/job pictured. The only con I have is the setup time is very fast (this could be user error as I have a tendency to add too much hardener). On the other hand, I can get to work on it much faster so the key is to mix in small quantities until you figure out the set time in your climate/temperature.
There are a few different types of auto body filler that can be used to repair rust. The most common type is polyester filler, which is a two-part resin that is mixed together and then applied to the affected area.
It dries quickly and can be sanded down to create a smooth, level surface. Another type of filler is epoxy, which is a stronger, more durable option that is best used for larger areas of damage. It can be more difficult to work with, but will create a stronger repair.
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