Automotive body filler, also known as car bog, is a two-part material that is commonly used for repairing and filling in dents, scratches, and other imperfections on cars. It is a popular choice for DIY enthusiasts and professionals alike, as it is easy to work with and provides a durable finish. There are different types of body filler available, each with their own purpose. Some of these include, lightweight filler, plastic filler, fibreglass filler, finishing filler and more. Most body fillers work the same, however it's still important you've chosen the correct bog for your application before you begin. In this article, we will provide a step-by-step guide on how to use body filler for car repairs.
Materials Required
Step 1: Prepare the Surface
Before beginning the repair, make sure the area to be repaired is clean and free of any loose paint, rust, or debris. Use a wax & grease remover to remove any dirt, oil, or wax from the surface. Once the surface is clean, use sandpaper to rough up the surface around the damaged area. This will help the body filler adhere better to the surface.
Step 2: Mixing the Body Filler
Mix the filler according to the manufacturer's instructions. Typically, a pea-sized amount of hardener to a golf ball sized amount of bog will work. Use a clean, flat surface to mix the two components thoroughly.
Step 3: Applying the Body Filler
Use a body filler spreader to apply the automotive bog to the damaged area. Start by applying a thin layer of filler and then gradually build up the thickness until it is slightly higher than the surrounding area (this allows for shrinkage when it dries). Make sure the filler is spread evenly and smoothly over the area. Use the spreader to remove any excess filler and create a smooth finish.
Step 4: Sanding
Allow the body filler to dry completely before sanding. This typically takes 15-30 minutes. Once it is dry, use sandpaper to sand the surface of the bog. Start with 80 grit sandpaper and gradually move to finer grits such as 120 grit, 240 grit, and 400 grit. Sand the surface until it is smooth and level with the surrounding area.
Conclusion
Automotive body filler is a versatile material that can be used to repair and fill in imperfections on cars. By following these steps, you can use filler to repair small dents, scratches, and other damage on your car prior to painting. Remember to always follow the manufacturer's instructions and use the appropriate safety equipment when working with body filler.