Abstract: A filler composition curable by subjection to ultraviolet radiation and the method of repairing deformities in wall elements by utilization of the composition. The composition is advantageously adapted for use in vehicle body repair. The composition is a single component epoxy system facilitating storage and use on site. Curing of the composition may be effected at relatively low temperatures such as down to approximately 30.degree. F. Curing of the composition is effected rapidly for further improved efficiency in the repair operations utilizing the compound.