Final varnish - matte or gloss

Mike McCarty · 01-06-2005, 10:29 AM

Cindy,

If I remember correctly my experiences with Damar probably had as much to do with my inexperience in application as with the product itself. I found that it would puddle up in places and was too shinny for my taste. The whole subject of varnish is a frightening one to me.

Because I like the finished look, and because I am so reluctant to change what seems to be working, I am now using a mixture of liquitex soluvar matte and glossy finish.

The mixture (tragedy), which includes cinnamon, sugar, turpentine, along with a cameo from Linda Brandon appearing as Ophelia (or was it Desdemona), can be found in the following thread:

http://forum.portraitartist.com/showthread.php?t=2895

Others have stronger views on the subject. I am no chemist, I don't enjoy diddling with these matters. I tend to park on something that works and turn off key.

Cindy Procious · 01-06-2005, 10:49 AM

Quote:

Originally Posted by Mike McCarty

Others have stronger views on the subject. I am no chemist, I don't enjoy diddling with these matters. I tend to park on something that works and turn off key.

I can totally relate to that.

I have never varnished, so I will definitely be practicing on my own pieces. Practice or no, it seems such a shame to risk ruining something on which I worked so hard (and would have to replace for free should I actually succeed in ruining it!) so I am very reluctant to get started on this aspect of oil painting.

Not to mention the fact that its framed, and I can't remove the painting from its prison. So, does one normally varnish in the frame? Employ taping or masking to protect the frame?

Thanks for the link, O Claudius, (or would that be Iago?) - I shall check it out forthwith, ere I err.

Cindy Procious · 01-06-2005, 10:59 AM

Cry pardon, sir. You were surely victim, not villian!

O fate, thy sweet pastry cast a pall. What of thy painting, sir?

Michele Rushworth · 01-06-2005, 11:05 AM

I'm no chemist either, nor do I like taking risks with important paintings. So I use the varnish that the National Gallery uses: Gamvar, by Gamblin. Easy, simple, looks great. (Hey, that ought to be a tv commercial!)

Damar varnish yellows dramatically over time and because it needs strong solvents when conservators try to remove it, sometimes a bit of the top layer of paint comes off with it. (You can see some before and after varnish removal pictures on some museum websites.) I try to stay away from it, even retouch varnish made with Damar.

With Gamvar, if you make a terrible mess of it (though I don't see how) you can take it all off with a more gentle solvent like odorless mineral spirits. Gamvar is glossy but it's easy to cut that glossiness by thinning the varnish with mineral sprits when you put it on, or with Gamblin Cold Wax medium in whatever proportion you like, to get a less glossy surface if that's your preference.

I always take the paintings out of the frames before varnishing, and wait til the varnish is very dry before putting the frames back on.

Cindy Procious · 01-06-2005, 11:09 AM

Thanks Michele. Looks like a trip to Utrecht (in the snow & freezing rain!) is in order.

I was afraid you were going to say you take the paintings out of the frames. The framers put the brown paper on the back! Grrr. Now I guess I need to get an exacto and remove that paper. Or - this just occurred to me - I have a great relationship with the framers that did this job - maybe I can have THEM remove the painting!

So, it is the usual custom to remove the painting, then? Does noone varnish in the frame?

Oh - and one more question (sorry to be a pest) - how long usually is that "fully dry" drying time?

Mike McCarty · 01-06-2005, 11:51 AM

I could never muster the courage to completely strip the painting of the varnish and begin again. Luckily the painting was mine. If you look directly at it you can't detect the offending section, but from the side, with my one good critical eye, it doth stink to high heaven.

Michele Rushworth · 01-06-2005, 12:28 PM

How long it takes something to "dry", whether it's paint or varnish, depends on so many factors: what type, how thick, type of support used for the painting, ambient temperature, humidity, light, etc.

Kimberly Dow · 01-06-2005, 02:36 PM

Cindy,

If you left it in the frame there is no way to keep the varnish from reaching right up to the frame. It would end up gluing the frame to the canvas. If ever removed - the frame would take part of the varnish (and paint) with it I bet. See if you can get the framers to take it out for you and put it back in for you - along with that nifty brown paper. Heck - see if the framers want to varnish it also.