The Wagner SpeedShield is an ideal accessory that in many cases even proves invaluable. Airless spray painting is a technique that allows you to save loads of time, especially when painting relatively large surface areas. Rather than via rollers, an entire house, including the masking, can be finished in as little as 1 to 2 days. Having said that, masking tape application is still a rather time consuming task. Much less, if any, need for masking