Collision Blast - Body Fillers

1. Fiberglass dust is extremely harmful to your lungs. A dust respirator is a must when sanding fiberglass.

True

False

Yes, fiberglass dust is very harmful to breath.

Explanation

Yes, fiberglass dust is very harmful to breath.

2. The filler should be one uniform color when properly mixed.

True

False

If there are streaks showing, the filler is not properly mixed. Keep mixing until one uniform color.

Explanation

If there are streaks showing, the filler is not properly mixed. Keep mixing until one uniform color.

3. Cross or "X" sanding is very important to properly level body filler when block sanding.

True

False

This is one of the most important steps to achieving a level surface.

Explanation

This is one of the most important steps to achieving a level surface.

4. Guide coat is used to help identify highs and lows.

True

False

When using a block, the guide coat will help you identify the highs and lows.

Explanation

When using a block, the guide coat will help you identify the highs and lows.

5. It is recommended by most technical data sheets to apply body filler on the top of a painted surface.

True

False

Surface must be metal or sanded epoxy. Finish glaze can be applied over sanded paint surfaces.

Explanation

Surface must be metal or sanded epoxy. Finish glaze can be applied over sanded paint surfaces.

6. 150 grit is courser than 36 grit sandpaper.

True

False

7. Kneeding the hardener tube is required at least the first use of each day.

True

False

Cream hardener will separate in the tube. You should kneed (mix) it in the tube before using.

Explanation

Cream hardener will separate in the tube. You should kneed (mix) it in the tube before using.

8. One thick coat of body filler will achieve better results than several lighter thinner coats.

True

False

Several thin coats will produce better results than one thick coat. Remember to apply a tight coat first followed by a fill coat.

Explanation

Several thin coats will produce better results than one thick coat. Remember to apply a tight coat first followed by a fill coat.

9. It is recommended to first apply a tight coat of body filler by pushing the filler into the scratches.

True

False

A tight coat assures proper adhesion.

Explanation

A tight coat assures proper adhesion.

10. What is the recommended sandpaper to start blocking the body filler a large repair area.

150 grit

36 grit to level then switch to 80 grit to minimize the 36 grit scratches.

150 grit to level then switch to 320 grit to minimize the 150 grit scratches.

First, you will need to prime the body filler.

Larger dent use what will work the fastest with the least amount of effort. 36 grit works good to level followed by 80 to minimize the 36 scratches. Then 150 grit can be used to minimize the 80 grit scratches. Some painters prefer to use 180 grit or 220 grit rather than 150 grit.

Explanation

Larger dent use what will work the fastest with the least amount of effort. 36 grit works good to level followed by 80 to minimize the 36 scratches. Then 150 grit can be used to minimize the 80 grit scratches. Some painters prefer to use 180 grit or 220 grit rather than 150 grit.

11. Bondo is:

Harder to sand than body filler.

Too expensive to use on most jobs.

A brand of body filler.

Outdated and was replace by body filler. Bondo is no longer available.

Bondo is just a brand name of body filler.

Explanation

Bondo is just a brand name of body filler.

12. One of the benefits of finish glaze is that it can be applied over sanded paint, primer, body filler, or metal.

True

False

Finish glaze can be applied over sanded paint, body filler or metal. However, the surface should be sanded with 180 grit or courser before applying the glaze.

Explanation

Finish glaze can be applied over sanded paint, body filler or metal. However, the surface should be sanded with 180 grit or courser before applying the glaze.

13. Body filler should not be whipped or stirred. What problem could this lead to, if you do whip and stir when mixing?

Over mix the products causing the filler to over activate.

Will never harden thoroughly.

Cause air bubbles, which will lead to pinholes.

This is a trick question. You should always stir the filler in a whipping motion.

Causes air bubbles, which will lead to pinholes after sanded.

Explanation

Causes air bubbles, which will lead to pinholes after sanded.

14. What grit sanding disc should be used to prepare metal for body filler?

24 to 50 grit

220 to 320 grit

24 to 50 grit on a grinder or 36 to 80 grit on a DA sander. 220 to 320 is used for block sanding and feather edging.

Explanation

24 to 50 grit on a grinder or 36 to 80 grit on a DA sander. 220 to 320 is used for block sanding and feather edging.

15. Aluminum or fiberglass seal out moister and should be applied over weld locations.

True

False

Any section locations that will show should use fiberglass or aluminum filler should be applied to seal the weld location for corrosion protection. Then the repair can be finished with body filler.

Explanation

Any section locations that will show should use fiberglass or aluminum filler should be applied to seal the weld location for corrosion protection. Then the repair can be finished with body filler.

16. There is a general rule to estimate how much cream hardener to mix with body filler. One rule is for every golfball size of hardener, mix:

A dime size of hardener.

A nickel size of hardener.

Use equal parts of filler and hardener.

Use a baseball size of hardener.

Golf ball of filler to a dime size of hardener is the general rule.

Explanation

Golf ball of filler to a dime size of hardener is the general rule.

17. Why is it not recommended to mix body filler on cardboard?

It does not look professional.

Cardboard my collapse in the middle of a job and make a mess.

It does not state that, using cardboard works fine.

Cardboard is a porous surface and will absorb resins from the filler.

You should not use cardboard to mix body filler. You should use a non-porous surface such as plastic, metal or glass.

Explanation

You should not use cardboard to mix body filler. You should use a non-porous surface such as plastic, metal or glass.

18. One of the benefits of fiberglass filler is that it is easier to sand than most other fillers.

True

False

Fiberglass seals well, but is harder to sand than body filler.

Explanation

Fiberglass seals well, but is harder to sand than body filler.

19. Some technicians prefer to lay a rag over the surface when rubbing their hand on the repair area to:

Protect their hand from body filler.

Determine the temperature of the surface.

Determine highs and lows.

Determine what grit of sandpaper to use.

Some technicians claim that using a rag between their hand and the surface helps them feel highs and lows.

Explanation

Some technicians claim that using a rag between their hand and the surface helps them feel highs and lows.

20. What is the main purpose for using fiberglass filler in auto body repair?

It works much better than plastic filler and should be used on most repairs.

To seal welded area.

When a speedy repair is needed and a easy to sand filler is required to speed up production.

To fill rust holes.

Fiberglass filler is used over welded areas to seal to prevent corrosion from occurring.

Explanation

Fiberglass filler is used over welded areas to seal to prevent corrosion from occurring.

21. Finish glaze can be applied over paint sanded with 180 grit sandpaper. All of these are the benefits EXCEPT:

Finish glaze may be applied without disturbing the e-coat.

This is a much quicker method than using body filler for minor imperfections and pinholes.

Finish glaze is less expensive than body filler.

Finish glaze is thiner and is easier to spread a smooth even coat.

Finish glaze is not less expensive than body filler. It is more expensive.

Explanation

Finish glaze is not less expensive than body filler. It is more expensive.

22. The 3M Dynamic Mixing System is?

A tool used to mix body filler.

A special spreader that makes mixing body filler easier.

There is no such thing.

A chart that shows you how much hardener to add when mixing body filler.

The 3M Dynamic Mixing system is a tool used to mix body filler.

Explanation

The 3M Dynamic Mixing system is a tool used to mix body filler.

23. Fiberglass filler consist of fabric like material and resin.

True

False

That is regular fiberglass. Fiberglass filler comes in a can much like body filler.

Explanation

That is regular fiberglass. Fiberglass filler comes in a can much like body filler.

Collision Blast - Body Fillers

1. Fiberglass dust is extremely harmful to your lungs. A dust respirator is a must when sanding fiberglass.

2.

What first name or nickname would you like us to use?

2. The filler should be one uniform color when properly mixed.

3. Cross or "X" sanding is very important to properly level body filler when block sanding.

4. Guide coat is used to help identify highs and lows.

5. It is recommended by most technical data sheets to apply body filler on the top of a painted surface.

6. 150 grit is courser than 36 grit sandpaper.

7. Kneeding the hardener tube is required at least the first use of each day.

8. One thick coat of body filler will achieve better results than several lighter thinner coats.

9. It is recommended to first apply a tight coat of body filler by pushing the filler into the scratches.

10. What is the recommended sandpaper to start blocking the body filler a large repair area.

11. Bondo is:

12. One of the benefits of finish glaze is that it can be applied over sanded paint, primer, body filler, or metal.

13. Body filler should not be whipped or stirred. What problem could this lead to, if you do whip and stir when mixing?

14. What grit sanding disc should be used to prepare metal for body filler?

15. Aluminum or fiberglass seal out moister and should be applied over weld locations.

16. There is a general rule to estimate how much cream hardener to mix with body filler. One rule is for every golfball size of hardener, mix:

17. Why is it not recommended to mix body filler on cardboard?

18. One of the benefits of fiberglass filler is that it is easier to sand than most other fillers.

19. Some technicians prefer to lay a rag over the surface when rubbing their hand on the repair area to:

20. What is the main purpose for using fiberglass filler in auto body repair?

21. Finish glaze can be applied over paint sanded with 180 grit sandpaper. All of these are the benefits EXCEPT:

22. The 3M Dynamic Mixing System is?

23. Fiberglass filler consist of fabric like material and resin.