Mechanical fiber-coating on flat surfaces is usually achieved using the beater-bar method. This technique involves the passage of an adhesive coated substrate over a series of polygonal rollers that rapidly rotate to vibrate the substrate. The vibration is used to drive the fiber into the adhesive. Fibers are applied by gravity onto the substrate.
Pneumatic flocking applies flock in a directed airstream. This method is most commonly used to coat three dimensional objects such as automotive glove boxes.