Corona Excalibur Performance Chinex Series Paint Brush. The ultimate in professional application of today's hi-tech coatings. Designed, formulated, and constructed with a full stock of 100% DuPont Chinex tapered synthetic filament to maximize the benefits of superior paint release and cleanup of this unique material. Incredibly effective with acrylics, heavy-bodied waterbornes, alkyd-modified latex coatings and primers, and all paints. Deep flagg tips created in-house to resemble those of natural China bristles for super smooth paint finishing. Hand formed chisel provides extra sharp, accurate cutting-in and preserves the smooth flagg tips.