Impact Indicator Paint for Composites

Luna Innovations is developing impact indicator paints for polymer matrix composites (PMCs) used as structural components in military and commercial aircraft. The impact indicator paint coated on a PMC will change color in response to an impact event capable of damaging the underlying composite. The impact indicator paint will allow Air Force personnel to rapidly identify potential composite damage in the field without the use of expensive equipment. Areas of damage highlighted by the paint can then be more closely inspected to determine needed repairs. Furthermore, Luna Innovations will apply their experience in aqueous coatings to develop one-component aqueous based impact indicator paint. The one-component aqueous paint will simplify the coating process and greatly reduce environmentally hazardous components and solvents. On a parallel course, Luna will investigate the incorporation of the impact indicator additives into currently qualified paints.