Filling

Filling is done to compensate surface roughness - defects and dents, resulting from sheet metal repair or damage.

In this process the goal is to recreate bodywork original shape. The proper handling of the putty requires to first clean the surface from dirt and dust.

Then mask and secure adjacent areas with foil or wrapping paper. Additionally, it is recommended to protect edges by using reinforced tape.

Grinding the surface prepares it to be more putty friendly. Choosing the right gradation of sandpaper should be based on recommendation by the putty manufacturer.

Removing remaining leftovers of grit dust and degreasing is best done with the use of silicone remover.

Caution is advised while handling with polyester putty - it contains organic peroxide, dangerous material for health, therefore protective gloves should be worn.

The filler compound is made from two components in the proportions given by the manufacturers.

For ease of use, the filler and hardener have different colors and the proper mix is ​​achieved, when the mixture is homogeneous.

After mixing the mixture we only have a few minutes to apply it. It is very important not to overlap one layer at a time, as cracks may form on the surface during drying.

Drying of the putty can be done at ambient temperature or with the use of a radiator. For putty grinding, use indicated dry sandpaper grade, and as tools hand blocks and oscillating grinders preferably with dust extraction.

Several basic kinds of putty are distinguish: glass fiber putty, aluminum putty, heavy filler putty, fine putty, plastic putty and spray putty.

When applying in high humidity, surface should be insulated as soon as possible with backing material.

The tools used for the filling are:

• plastic spatula,

• Rubber spatula and trays on which filler with hardener are being mixed.