may include a pan over which substrate 10 is fed face down under a front panel of the paste well u2122 machine the pan and front panel together form a well into which the mud mixture is poured directly onto the back of substrate 10 the paste well u2122 machines 20 30 may include a wiper screen attached to the bottom of the front panel in order to improve the smoothness of application of the mud mixture to substrate 10 the paste well u2122 machines 20 30 may include front panel adjustment knobs that allow a user to set a desired paste thickness referring again to fig1 the first paste well u2122 20 in series may be set tight with a higher pressure of the front panel the higher pressure is provided so as to push the mud mixture into the fabric substrate 10 the second paste well u2122 30 in the series may be set with a looser pressure of the front panel in order to provide the desired thickness of the final product pressure of the front panel may be loosened by rotating the adjustment screws of the paste well u2122 30 in an exemplary embodiment the mud mixture may be applied at a thickness of no less than 0 0156 inches and no more than 0 1 inches if the mud mixture is applied at a thickness greater than 0.