Resene FX Paint Effects Medium is a tintable acrylic used to obtain a variety of broken paint finishes, such as Ragging, Sponging and Limewash Effect. Resene Paint Effects Medium is always used in conjunction with a basecoat tinted to a selected colour. The choice of basecoat will depend whether it is an interior or exterior application. Resene FX Paint Effects Medium provides the end user with a unique alternative to traditional wall coverings offering an infinite number of colour combinations.