Varnish is a reedy shielding coat between the completed painting and the air. It should be clear, neutral and to form a good bond with the paint without tarnishing the painting. It is a blend of a resin or a solvent that is applied to the painting when it’s completely dry.
Varnishing and Lacquering Acrylics:
Unlike oil paint acrylic paints texture leaves a plastic finishing when dry giving a softer exterior than oils. Making it easier for grime and dust to stick on the artwork. If polishing your acrylic painting isn’t sufficient once it is completely dry and glazed placing it behind a glass would protect it for a life time.
However, I have always buffed my paintings with the precise method as I favor the aesthetic and artistic visual effect without glass. With the right polish and procedure, it can enhance the finish by either choosing to have a matte or glossy finish in order to bring out the colors of your artwork or painting to a new vitality.
When acrylic paint dries and the water evaporates off, varnishing will help to protect it from extremes of temperature or humidity, it also provides a layer that can easily be cleaned.
Tip: You will need an isolation coat, if the varnish will require to be removed and re buffed, taking away all the dust and dirt and changing it with a fresh coat of varnish might ruin the previously dried acrylic.
Varnishing Acrylic: Isolation coat
An isolation coat is a see-through layer of a medium that actually divides the fundamental layer of the paint from the varnish applied. When a solvent is used to melt the glaze, the isolating film will stop it from getting to the tinted layers damaging some parts.
Tip: Varnish that is (Glossy) thinned with water is a suitable isolation coat. It delivers sufficient flattening, smoothing and a lather touch.
Step 1: How to select between a brush or spray varnish
It is recommended brush varnish for works that have a relatively smooth appearance. Select brush or spray founded on the surface and texture to see what is more valid.
If the piece is subtle with multimedia fragments or extremely textural artworks spray varnish will be ideal.
Step 2: How to apply varnish with a brush
Get a clean brush: Don’t use a rough brush it will leave too many lines and marks; use a smooth flat brush so you can just slide along the surface.
Dispense varnish in a dish: This aids the quantity of varnish on your brush. Use an MDF board or newspaper, you are bound to get some drips.
Work speedily but moderately: Smear a lengthy coat of varnish to conceal the surface in the same motion from top to bottom or from side to side aiming to have no noticeable brush marks.
Do not go above parts that you haven’t done: When partly dry resin or lacquer interweaves into wet coatings, it leaves a dry hazy and dull outcome. It is ideal for all the areas to be completely dry before re-varnishing, after all three thin coverings are better than one thick one.
Step 3: How to apply a spray varnish
Make sure your surface is clean and dry, then place the painting upright in a dust free room. Place the artwork on top of a panel that is bigger than the canvas.
Apply the spray at a distance about thirty centimeters away from the canvas. If your spray varnish blocks, try spraying on a different piece of board just to unblock the nozzle and not ruin your artwork.
Spray the edges to certify an even coverage, start with the painting and finish with covering the board below. Work in reedy layers, two to three layers should be sufficient but can be much more for a super glassy effect.
Seven main roles of a Varnish
Changes the apparent to a glossy finish.
Changes to a matte or non-glossy finish.
Offer an extra combined texture to the several parts of a painting.
Intensifies the color making it more vibrant.
Shields the surface and paint.
Easier to clean and keep dust off.
Protects from UV radiation
Varnishing Acrylic: Intensify color and shine
A long-lasting gloss polish on a tint or color makes it look more vibrant and saturated. Different varnishes of the same product can generally be blended to attain the preferred level of gloss.
Tip: Matte varnishes (which are white), if not mixed properly with a matting agent can sometimes leave a cloudy or chalky appearance to your paintings.
As varnish has a harder surface than the dried Acrylic paint it helps protect it and make ease of cleaning the paint surface.
When a separation coat and varnish is applied properly, the painting not pierce the isolation coat and damage the paint film and will easily be cleaned.
Protection from UV radiation
Ultra Violet Light Stabilizers, can be found in some up-to-date polishes. These lacquers are absolutely beneficial if using supplies that haven’t got a great lightfastness. Lightfastness is a material goods of a pigment such as dye that defines how resilient to disappearing to when visible to light.