Handling A Deployed Steering Wheel Inflator Module

After the inflatable restraint steering wheel module has deployed, the surface of the air bag may contain a powdery residue. This powder consists primarily of cornstarch (which is used to lubricate the bag as it inflates), and by-products of the chemical reaction. The deployment reaction produces sodium hydroxide dust (similar to lye soap). The sodium hydroxide quickly reacts with the atmospheric moisture, creating sodium carbonate and sodium bicarbonate (baking soda). Therefore, you will probably find no sodium hydroxide present after the deployment. As a precaution you should wear gloves and safety glasses, which help to prevent possible irritation of the skin or the eyes.