Non-Absorbent Acrylic Primer for various surfaces Creates a flexible, permanent ground for both oil and acrylic Primer acts as a buffer between paint and the support Burnt Sienna Transparent Primer for use over white This is a 500ml container of Michael Harding Primer Non Absorbent Acrylic Primer from Michael Harding is a revolutionary medium for painters. It creates a strong, flexible working surface on linen, wood, MDF, and over standard primed canvases. Formulated as a buffer to keep the paint and the support separated, while providing excellent adhesion. This is a 500ml container of Burnt Sienna (Transparent) Non-Absorbent Acrylic Primer for use with both oil and acrylics. Scumble a thin layer over 2 coats of white primer for a warm grisaille appearance.