Car body filler is used for repairing auto body damage. Car body filler is also sometimes used for wood products as well even though it is intended for use on automobiles.
The hole can be patches with replacement of the metal or with a body filler. a metal backing piece needs to be put in for the filler to have something to adhere to.
Bondo is the industry standard.
When looking at used cars that are for sale it is worth always making sure that the body of the car is sound and no filler is used to cover cracks. It is also worth making sure it has a full known service history and that it is mechanically sound.
If they have been damaged by taking a hit, resulting in distortion or tearing ,no. Scratches can be filled with a 2 part plastic filler available at auto shops. Car body filler will not stick .
So you can work out where there may have been damage to the vehicle thats been filled with car body filler.
You must sand or grind off any paint or rust prior to using body filler because body filler will not adhere well to paint or any other contaminate.
A cosmetic filler is a procedure of injecting collagen under the skin to smooth away wrinkles. Bovine and human collagen are usually used. Products using hyaluronic acid have recently been used. Another filler is fat that has been removed from another part of ones body.
transmission filler is located under the car. car needs to be jacked up to replace and refill transmission.
The fuel filler.
Sand the fiberglass with a 400 - 1000 grit sandpaper so you can not feel a difference between the fibergass filler and the body of the car. Now you can prime it.
Remove all fasteners behind the filler neck door that attach the upper filler neck assembly to the car body. Remove ground strap if applicable. Loosen and slide clamps up from tank end of filler neck then wiggle the filler hose assembly off the tank and out. Take care not to allow dirt and crud to enter the tank. Removing the clamp on the tank end of the filler neck assembly will be a test of your dexterity skills but it can be done.
Sand the fiberglass with a 400 - 1000 grit sandpaper so you can not feel a difference between the fibergass filler and the body of the car. Now you can prime it.