This step deals with material that can be harmful if inhaled and/or it makes contact with your skin. It is with utmost importance that you wear proper PPE (personal protective equipment). Disposable gloves and an N95 face mask are highly recommended.

Follow the instructions on the back of the Bondo Short Strand Fiberglass Filler label for proper measurements of the filler.

Add in a sufficient amount of Bondo Cream Hardener according to the Bondo Fiberglass Filler label.

Mix together until this mixture becomes a single color.