Abstract: A spray proportioner hose includes an inner diameter that extends along a longitudinal length of the hose and through which a flow of spray component from a spray proportioner unit may be directed toward a fluid manifold of an applicator gun. At the fluid manifold, the spray component will be mixed with another spray component in a desired proportion. The hose includes a static mixer positioned within its inner diameter to interact with and thereby mix the flowed spray component within the inner diameter of the hose before the spray component is delivered to the fluid manifold.

Abstract: A method of heating spray components with a spray proportioner unit may include flowing a spray component from a hopper through a preheater and heated hose. The spray component may be received at a receiving end of the heated hose at a first temperature and exit the heated hose at a delivery end at a second temperature. The spray component may be flowed through the heated hose at an operating pressure up to 2000 psi and at a rate up to 12 lb/minute. The second temperature may be at least 30° F., such as between 40° F. and 60° F., greater than the first temperature.