Abstract: Apparatus and methods for applying a first material to a moving second material that has at least two edges. The apparatus may include at least one supporter for supporting the second material in a substantially non-horizontal orientation and at least one applicator for applying the first material to the second material adjacent to one edge of the second material such that the first material substantially migrates across the second material towards the other edge thereof as the second material moves in a predetermined direction. The apparatus may include apparatus for dispersing the first material on the second material such that the first material that remains on the second material is substantially uniformly distributed thereon. The apparatus may also include interchangeable reservoirs for containing the first material.