2 Part Poly Eurathane clear coat and hardener quality varies ans so does the price you get what you pay for 200 a gallon is the entry level high quality wet sand-able and buff-able coating. High gloss is what you need use 1200 grit to surface off orange peel use use compound paste to achieve professional shine.
Surface cracks in oil paintings are known as craquelure, caused by the ageing of the varnish or paint layer.
Why Paintings Darken Over TimeOil paintings darken and yellow over time as the varnish of the painting ages. Varnish is a transparent layer that applied over the top of most oil paintings. Varnish can collect dust and smoke over time thus obsucring the original color of the paintingHow is a Painting Cleaned?Oil paintings can be restored to their original appear by "cleaning" them. The process involves carefully removing the old varnish without removing the underlying paint.Profession RestorationCleaning a painting is a tedious process that involves harsh chemicals and carefully skill. Before attempting to clean a painting yourself, get some quotes from a professional restorer. Search for "oil painting restoration" and you will find many restorers that provide quotes via e-mail and can accept paintings via UPS.For example, http://oilpaintingdoctor.com
For oil paintings: best let it dry for a longer time (6 months or so), then put dammar varnish over it. The long drying time makes sure you can take off the varnish later, without harming the paint itself.
Vegetable oil to get varnish off then soap and water :)
Varnish preserves wood better than paint.
You need a Varnish with UV inhibitors.
John Henry Martin has written: 'A glossary of pigments, varnish and lacquer constituents' -- subject(s): Dictionaries, Lacquer and lacquering, Pigments, Varnish and varnishing
varnish
Many artists seal oil paintings with varnish. Other artists use a mixture of varnish and turpentine. Oil paintings can take as long as six months to dry completely.
Surface cracks in oil paintings are known as craquelure, caused by the ageing of the varnish or paint layer.
Since canvas is strong, portable, and reasonably priced, it makes a great surface for acrylic and oil paintings. When covered in gesso, it becomes archival as well. Paintings can be sealed with a long-lasting varnish to prevent fading, dust, and other damage. Technically, you are not required to varnish any of your paintings, but doing so is a good idea if you plan to give or sell the piece. However there are various ways to preserve your paintings
they still use it although not as much as they were use about 50 years ago
No, resin is not a varnish .
No varnish will cover beeswax
A lot of resins are used in varnishes. Printer's varnish uses copal resin, polyurethane varnish uses polyurethane, amber varnish contains amber.
Use dammar varnish, thinned until it's fluid. Thin it with turpentine. It's important to let the painting dry for a few months first. In this way, the painting becomes restorable. There is some yellowing involved (done by the dammar varnish), but it'll be OK if you don't make a thick layer.
Why Paintings Darken Over TimeOil paintings darken and yellow over time as the varnish of the painting ages. Varnish is a transparent layer that applied over the top of most oil paintings. Varnish can collect dust and smoke over time thus obsucring the original color of the paintingHow is a Painting Cleaned?Oil paintings can be restored to their original appear by "cleaning" them. The process involves carefully removing the old varnish without removing the underlying paint.Profession RestorationCleaning a painting is a tedious process that involves harsh chemicals and carefully skill. Before attempting to clean a painting yourself, get some quotes from a professional restorer. Search for "oil painting restoration" and you will find many restorers that provide quotes via e-mail and can accept paintings via UPS.For example, http://oilpaintingdoctor.com