FAQ – Non-Absorbent Acrylic Primer
Q: What is Michael Harding Non-Absorbent Acrylic Primer used for?
A: Michael Harding Non-Absorbent Acrylic Primer (NAAP) is a versatile product suitable for
application on various surfaces, including linen, wood, MDF, and more. It is designed to
create a robust, flexible, permanent, and intensely pigmented ground, making it an excellent
choice for both acrylic and oil paints.
Q: Can this primer be used on any surface?
A: Michael Harding Non-Absorbent Acrylic Primer (NAAP) is a versatile product suitable for
application on various surfaces, including linen, wood, MDF, and more. NAAP should not be
applied over surfaces treated with rabbit skin/hide glue or on unsound, flimsy supports such
as cardboard, opt for stable substrates to ensure the primer’s effectiveness. It is crucial to
choose a stable and well-prepared surface for priming to ensure the longevity and integrity of
your artwork.
Q: How do I prepare the surface before applying the primer?
A: Dust off the surface to be primed with a lint free cloth. Lightly sand the surface with a very
fine grade dry sandpaper. Dust off the surface again with a lint free cloth.
Apply a generous layer of Michael Harding Non-Absorbent Acrylic Primer with a wide flat
brush, brushing in both horizontal and vertical directions. For application tips click the “Watch
Tutorial” at the bottom of the primer page
Q: . Is the primer suitable for both oil and acrylic painting?
A: Michael Harding Non-Absorbent Acrylic Primer an excellent choice for both acrylic and oil
paints.
Q: How long does it take for the primer to dry?
A: A good layer of Michael Harding Non-Absorbent Acrylic Primer is typically touch dry after
approximately 1 hour.
Q: How many coats of primer should I apply?
A: Apply a minimum of two coats of NAAP to your chosen support, ensuring liberal coverage
for optimal results. For more application tips and tutorials please click link below*
Q: Can I thin the primer, and if so, with what?
A: Dilution for Flow: If you desire increased flow, dilute NAAP with a mixture of 1 part water
to 4 parts NAAP. This adjustment allows for customization based on your artistic
preferences.
Q: Is the primer non-toxic?
A: Care should be taken when using this product if sanding primers do so in a well-ventilated
room. Keep out of reach of children. Contains Isothiazolinones, avoid eye and skin contact.
For all safety information please click here.
Q: What is the coverage area of a single container of primer?
A: Because there’s so much variation in absorbency and texture of grounds, and because
individual technique is a factor, each artist’s experience will vary, but we can give some
general guidelines. We estimate one pint of NAAP will cover about 12 to 37 square feet.
Q: How should I apply the primer for the best results?
A: Michael Harding Non-Absorbent Acrylic Primer (NAAP) is a versatile product suitable for
application on various surfaces, depending on the surface, apply 2 coats. First coat may be
applied 20-25% diluted with water to increase flow and coverage if required. Apply second coat
once first coat is touch dry (approx. 1 hour).
Q: Can a painting with the Michael Harding Non-Absorbent Acrylic Primer base be rolled for transportation?
A: Yes, a painting with a Michael Harding Non-Absorbent Acrylic Primer base can be rolled for transport, though not ideal. If rolling is necessary, ensure the primed and painted surface faces outward. Use a large-diameter tube to reduce pressure on the surface, and interleave with protective materials like silicone release paper or glassine to prevent abrasion. Roll the painting loosely and unroll as soon as possible at the destination to minimize deformation or stress on the primer layer.
Q: Can I use Michael Harding Non-Absorbent Acrylic Primer on fine canvas?
A: Yes, the Michael Harding Non-Absorbent Acrylic Primer can be applied to fine canvas, but the weave should be assessed first. Hold the canvas up to a light source—if light is visible through the warp and weft, the weave is too fine and may not provide optimal adhesion for the primer. For best results, use a medium- to heavy-weight canvas with a tighter weave, which will support the primer application more effectively. This helps prevent seepage and ensures a stable, even surface for subsequent painting layers.
