CollisionBlast.com – This is a 30 minute video that demonstrates a method of how to fix dents in your car repair. It covers everything from dent repair to applying body filler (bondo) and block sanding the body filler. I originally made this as an exclusive video for the members of [Read more…] about DIY- (How To Fix Dents In Your Car), Spread Body Filler, and Block Sand
How To Apply 3M Finish Glaze – Collision Repair Training
This video demonstrates how to apply the new 3M and how to sand the glaze. Once sanded and featheredged, you’re ready to mask and prime with epoxy primer.
HOW TO APPLY TRADITIONAL FINISH GLAZE
In this video a BCC student demonstrates how to use traditional glaze.
Benefits Of Using Finish Glaze
- Can be applied over sanded body filler, sanded primer, or sanded paint. I would recommend to sand with a no finer grit than 180 to assure proper adhesion. Glaze will not stick to non-sanded substrates.
- Spreads smooth and sands easy.
- Can be applied over small dings and dents without removing factory e-coat corrosion coatings.
- Minimal Shrinkage
Disadvantages Of Using Finish Glaze
- Costs more than body filler.
- Can not be applied as thick as body filler.
STEP BY STEP PROCEDURE
The body filler has been block sanded and finished in 80 grit sandpaper. Now you are ready to feather edge and apply glaze.
- Feather the paint edges around the repair area with 220 grit sandpaper on a DA. Sand each layer of coating to expose at least 1/4″ of each coating.
- Blow repair area with compressed area to remove all dust.
- Apply (either type 3M or traditional) glaze from paint edge to paint edge. (slightly overlap onto the sanded painted surface.)
- Allow to fully dry and block sand with 80 grit sandpaper. (just knock the highs down…do not sand on the painted surface to eliminate 80 grit scratches on paint surface.)
- Apply guide coat to help identify highs and lows.
- Block sand glaze and finish shaping with 150 grit sandpaper.
That is it! Now you’re ready for primer and paint. We’ll hit that in another lesson!
Collision Repair Training – How To Apply and Block Sand Body Filler or Bondo
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First of all, let me explain what the difference is between bondo and body filler. Well, there is not a difference. Bondo is just a brand name. You may be saying there is a difference, some spread easier that others and some sand easier. That is true too! How can it be the same and different? Well, Coca-Cola and Pepsi are both a pop, right? But they are different at the same time. Body fillers are the same way. Bondo is just a brand of body filler. However, it has became a trade name. The reason that I post this first is because I get a lot of question about this. So there you go, now you know.
In the first training video, I will demonstrate how to mix and apply body filler to a damaged area.
[youtube]http://www.youtube.com/watch?v=eygKDon4z7M[/youtube]
In the next video below I am demonstrating how to block sand body filler. A common question that I get asked it how to sand body filler without it feeling lumpy or wavy. There are a few things that will help you get a level surface.
The first thing is to cross sand. I can not stress how important this is. Sanding in only one direction allows your block to follow waves. Kind of like a ship at sea….going with the motion. However, we don’t want to follow patters, we want to level them.
The second little bit of advice it to level before smoothing. I think that students have the objective is to get the body filler real smooth. However, switching to finer grits too soon will lead to lumpy body filler work. Make sure to have surface completely level before switching to finer grits.
[youtube]http://www.youtube.com/watch?v=cUj_jZIOfNg[/youtube]
Step-By-Step – 9 Step To Apply and Sand Body Filler
- •If the repair has been welded, mix and apply fiberglass filler to repair area.
- •Sand the filler with 36 grit. There is no need to use a finer grit as body fill will be applied over the fiberglass. All you need to level the glass filler.
- •Mix and apply body filler over the repair area. Cover and extend body filler over fiberglass. Do not extend the filler onto the paint surface.
- •Block sand (cross sand) the filler with 36 grit sandpaper. (This step can be done before the filler is completely dry to reduce the amount of sanding required.)
- •Repeat step if there are still lows.
- •Allow to fully cure (15 to 20 minutes) and spray with guide coat.
- •Block sand (cross sand) with 80 grit sandpaper. Sand just enough to remove guide coat. If guide coat does not sand off in an area indicates a low and additional filler will be needed.
- •Optional: Either apply guide coat and block sand with 150 grit; Or, Apply a coat of finish glaze over entire repair area. Remember, glaze can be applied over sanded paint too.
- •Finish filler or glaze by blocking with150 grit.
How to Paint Your Car Yourself – Auto Body Repair
Part 1
[youtube]http://www.youtube.com/watch?v=n41uUg18rRY[/youtube]
Part 2
[youtube]http://www.youtube.com/watch?v=MeOUA_9kt5s[/youtube]
Refinish Network demonstrates how to fix a dent on a quarter panel. In this video he goes through the steps that it takes from start to finish. This includes body filler, priming, block sanding, sealing, paint and clear coat application.
The Difference Between Repairing Early Model Cars and Cars of Today – Metal Straightening
The Difference Between Repairing Early Model Cars and Cars of Today – Metal Straightening
By Donnie A Smith
Repairing Early Model Cars
On early model vehicles the metal was thick, which had advantages and disadvantages. First of all, they had a lot of metal to work with. This allowed body men to hammer, dolly and pick on the metal, then file the top surface knocking the high areas down. Then they could repeat the process, work the metal and file the surface level. This allowed the body man to metal finish much of the damages without the need of body fillers. This is called metal finishing. If there were still a few imperfections remaining, the body man would use lead to fill the lows and file the surface level and smooth.
Advantages and Disadvantages
The advantage they had was the possibility to straighten and work the metal without the use of fillers. If we tried to use those methods on vehicles today, we would have a hole in the part from filing through the part. If we didn’t file a hole through the part, it would be very thin and weak. Another advantage of working on early model vehicles is being able to get to both sides of the panel. Vehicles today have limited access. It is hard to get behind most panels to use the hammer and dolly method. The disadvantage of working metal on early model cars was the strength of the thick steel; it hard to move, unlock, and reshape. It took a lot more force to move the thick metal when straightening. The lead filler that was used also took more time and skill to fill the small imperfections. We are also more educated about lead today and the safety hazards of it.
Repairing Vehicles of Today
Today’s vehicles are thinner and have very limited access. However, improved fillers, such as body filler and tools have made the job easier. The most common tool to use for repairing dents is a stud nail gun. The cost of a stud nail gun ranges between $200 to $500. This tool tacks a small nail to the surface. Then you get a slide hammer or t-handle to pull on the nail. Therefore, you tack the nails to the low areas and lightly tap on the high areas with a body hammer. It is important to do this at the same time. Just pulling out on the low area will cause the metal to be over pulled and stretch the metal. Just hammering in on the highs may cause the entire area to be hammered in too much. This is referred to as chasing your damage around. It is always better to have multiple forces at one time. You need to think of it as rolling the damage out, rather than hammering or beating it out. The metal wants to go back to its original shape, you just need to help persuade it to. Forcing metal will result in stretched metal.
KISS Keep It Simple Silly
When you have access, a hammer and dolly can be used. This is probably going to be the fastest way to repair the damage if you have access. When performing auto body repair, think like electricity. Electricity move where ever it is easiest for it to pass through. The path of least resistance. This is why a ground wire is used on homes. If lightening hits your house, it will follow that ground wire that is attached to a ground rod that in hammered in the ground, as that is the path of least resistance. When determining how to repair a dent, just try to think of what would be easiest. Just because you have an expensive piece of equipment does not mean that you have to use it every time. If you can reach behind the panel and pull out on the low with one hand and push down on the high with the other hand, then simply use your hand to repair the damage. It may still need a little hammer and dolly work afterwords, but I have repaired many dents with nothing but my hands. Remember today’s metals are thin and it does not take much to dent or repair it.
What Ever It Takes
Whether you’re working on early or late model vehicles, just remember to select the tools that will make the job easiest to repair. Don’t over work the thin metal on late model vehicles, as the metals are thin. The use of body filler will help repair the surface back to its original shape.
To learn visit the simple secrets to body repair. There you can learn more about collision repair and painting.
I am a lead collision repair instructor for a college. We teach our students how to properly repair vehicles. I am ready to teach you too. For free training and learn about auto body repair and painting visit simple secrets to body repair.
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