Relationship between avant-garde art and American pop culture brush strokes and in techniques partially dictated by chance, such as dripping or spilling the paint directly onto the canvas. Examples of this include Jackson Pollock dripping commercial paints on raw canvas to build up complex and tangled skeins of paint into exciting and suggestive linear patterns and Willem de Kooning used extremely vigorous and expressive brush strokes to build up richly colored and textured images. The second category of Abstract Expressionism is represented by a variety of styles ranging from Color field, to Lyrical abstraction; delicate imagery and fluid shapes and fields of color included in works by Clyfford
Color Field Helen Frankenthaler, Morris Louis, Paul Jenkins and dozens of other painters found that pouring and staining opened the door to innovations and revolutionary methods of drawing and expressing meaning in new ways. The number of artists who stained in the 1960s greatly increased with the availability of acrylic paint. Staining acrylic paint into the fabric of cotton duck canvas was more benign and less damaging to the fabric of the canvas than the use of oil paint. In 1970 artist Helen Frankenthaler commented about her use of staining: "When I first started doing the stain paintings, I left large areas