Often asked: Why Use Retouch Varnish?

What is a retouch varnish?

Winsor & Newton Artists’ Retouching Varnish is a UV resistant gloss varnish which gives temporary protection to recently completed oil paintings. A layer of Artists’ Varnish should then be applied after the last layer of colour has been allowed to dry for six months.

How long does retouching varnish last?

The retouching varnish allows the oil painting to dry and at the same time give the oil painting a temporary gloss finish. After 6 to 9 months when the oil painting is completely dry, regular artist varnish can be applied without the need to remove the retouching varnish.

Can you paint over retouch varnish?

Retouch varnish can be painted over and retouch varnished again many times. Because retouch varnish restores a color’s original luster it helps in matching dried colors. All oil paintings should be varnished. Oil paints dry to various degrees of gloss or matte, which can slightly alter the original color.

Is retouch varnish permanent?

Retouch/Temporary Varnish: permanent but not intended as a long term finish. easily removable for conservation purposes. provides thin semi-protective film.

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How do you retouch varnish?

For a retouch varnish, thin 1 part Damar Concentrate with 3 parts turpentine. – or 1 part Damar Picture Varnish with 1 part turpentine (both are equivalent to 1/4 of concentrate strength). NOTE: In humid climates, you may need to add a bit more turpentine for picture or retouch varnish.

How do I remove retouch varnish?

Dammar varnish can be removed using any of our three oil colour solvents: Distilled Turpentine, Artists’ White Spirit and Sansodor. Distilled Turpentine is recommended, as it has the strongest solvency.

Do you have to remove retouch varnish before final varnish?

Applying retouching varnish You do not need to remove retouching varnish before you apply the final varnish.

Is one coat of varnish enough?

For a very durable finish and one that needs to be very tough, say on a kitchen table, coffee table or end table etc, 2 to 3 coats of varnish should be enough on the top, with 1 to 2 coats on the legs/base. For chairs, benches, chests and other such pieces, 1 to 2 coats should do the trick.

What happens if you varnish too soon?

Premature varnishing may result in the varnish solvents softening and binding with the paint. In combination with temperature and humidity excursions, wrinkling or cracking is a risk. Future varnish removal and renewal may be impossible.

Is Gamvar a retouch varnish?

Personally, I mixed up a retouch varnish of 1 part Gamvar to 4 parts Gamsol, this seemed to work just fine. The retouch varnish helps to unify the surface quality of the painting a bit. I use the retouch varnish first and allow it to dry for a couple days to a week – it’s usually dry sooner than that.

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How long does varnish take to dry?

How long does it take for varnish to dry? A single thin coat of Gamvar usually dries tack-free in 18-24 hours. Cold temperatures and, especially, high humidity can slow dry time by several hours.

What happens if you oil paint over varnish?

Even if you wanted to take the chance and sneak in a few touches, we would strongly recommend against it. Oil paints themselves, as it turns out, are not compatible on top of MSA or Archival Varnish. Because of that, oil paint applied over MSA may develop surface distortions and in some cases might never dry!

How long does Damar retouch varnish take to dry?

Full drying generally takes between 3-6 months although it can take longer with extremely thick paint films (5mm or thicker). If needing a temporary protective varnish before full drying has taken place apply Retouch Varnish.

How do artists retouch varnish?

It is very important to apply retouching varnish very sparingly, as the paint, not yet completely dry, may dissolve in the solvent of the varnish. Use for applying a broad varnish brush. The painting can dry now completely. After a drying time of at least one year is a layer of final varnish is recommended.

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