Body Filler Types and Their Uses
PLEASE READ: There are three basic types of body fillers used to repair dents and minor imperfections in sheet metal. We will look at the three main types here and will also be working with fillers in the hands-on part in the shop.
1. Standard Body Filler (Comes in various names) Used with a hardener to activate the filler. The filler will not harden without the blue or red hardener. For each gallon of body filler you receive a tube of hardener. A small amount is mixed in with the filler and folded over and over until the color of the hardener is uniform with the filler. It should be all one color with no streaks. This filler has a "cure time" to use it in. You have to work fast to make sure it does not harden to soon. We will discuss applying it to a repaired dent at another time.
2. Fiber-Reinforced Filler. This is similar to standard body filler. It mixes with a hardener but it dries a little slower. This filler contains strands (hairs) of fiberglass. This type filler is used to repair small rust holes, to help reinforce larger areas of torn metal and it hardens stronger than regular filler.
3. Polyester Glazing Putty: It also uses a hardener. With all three of these products the mixing ratio is the same. You apply 10% of the size of your filler amount. Unlike standard or fiver-reinforced filler, glazing putty is used to fill minor pinholes and scratches in repaired surfaces. It is very smooth and spreads thin across a surface. You can use glazing putty on sanded painted or primed surfaces and also on bare metal.
Over the next few weeks we will be working with body fillers, repairing dents in sheet metal and learning about the make-up of these products. Good luck with this 10 question quiz. It is a minor grade.
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