tag:blogger.com,1999:blog-2230399250812394537.post1303485748881082826..comments2023-08-15T04:15:01.670-07:00Comments on Zachary Kator | Living in Art: Linseed Oil, Part IIZachary Katorhttp://www.blogger.com/profile/04681785954424203992noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2230399250812394537.post-46966575287594344042014-11-02T21:12:41.876-08:002014-11-02T21:12:41.876-08:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/03244068209034736735noreply@blogger.comtag:blogger.com,1999:blog-2230399250812394537.post-53992258119216805882012-11-13T04:59:46.868-08:002012-11-13T04:59:46.868-08:00Hello. My name is Louis R. Velasquez. I invite you...Hello. My name is Louis R. Velasquez. I invite you to view my website. Just Google the name Calcite Sun Oil.<br />Regarding your views and efforts on the oil we artists use.<br />1. You are correct in saying the oil is of extreme importance.<br />2. Correct in beginning with unrefined linseed/flax oil.<br />3. Water washing with or without salt is a waste of time, a waste of energy and a waste of good oil. Water washing with or without salt, sand, diatomaceous Earth or other inert substance is a complete waste and ineffective.<br />4. You are correct in that the mucilage must be removed from the unrefined oil. Modern industrial use of caustic lye chemicals such as sodium hydroxide damage the oil. Besides removing the mucilage (and note that even tis chemical process does not remove it all) it removes other important molecules of the oil.<br />5. You are grossly incorrect that the fatty acids must be removed. The fatty acids are a component of this 'miracle' vegetable oil that gives the oil it's pliability to endure centuries. Your use of the word to describe the fatty acids...calling them 'heavy' is incorrect. We're they heavy they would have dropped out of the oil of themselves. Science shows it is 2of the over 7 fatty acids in this oil that cause the yellow color of th oil. This coloring is fugitive and easily bleached by the ultraviolet rays in sunlight. Sunlight bounces and reflects and explains why any room in your house is illuminated without bing in direct sunlight. Oil paintings in rooms with sunlight do not turn yellow. The reason the oil in the jar ...oil that has had the mucilage removed...and previously sun bleache.....is yellow is because you are seeing that oil in concentration. Put one drop on a pure white plate and rub it thinly...it will be colorless.<br />6. The only oil that becomes discolored over time is oil that has not been well cleansed of ts mucilage and particulate....particulate...is the fine powdered husk seed components caused by the pressing.....both...the mucilage and the very finest particulate are in complete suspension in the oil and neither will drop of their own. They must both be removed and mechanical filtration will not remove the mucilage but will remove the seed husk particulate. The old masters tried everything they had available o test...ashes...urine..powders..etc etc etc. the old recipes are sometimes laughable...a touch of this...a pinch of that (like your pinch of salt method) ..a piece of this and that..shake and swirl and bake and repeat endlessly....but the one ingredient that will remove the mucilage is ethanol. Ethanol is a component of drinking liquor. See my book for to formulas using liquor. Both are based on Francisco Pachecos method (he was Velazquez teacher) .<br />7. The reason your oil looks transparent when seen in the photo from above is due to the warmth of the day. Put that oil in the refrigerator and if it remains clear...then the mucilage is out. The mucilage in the oil is visible not in warm weather...but when the day or night gets cooler..it causes the oil to become hazy, cloudy, turbid.<br />8. One other way to remove the mucilage s to STAND ...NOT SHAKE TOGETHER...stand the oil on water. Water is polar and it takes 30 to 60 days depending on quantity of oil....to have the mucilage drop down to the level of the water. This happens because water is POLAR ...it acts like a magnet. But you met remove the lid from the jar and the water must be minimum twice the amount of the oil. The taller he jar the longer it takes...use a wide container for faster results and also expose t to the sunlight...direct or indirect to begin the bleaching ( in storage the yellow will return but it is pale compared to fresh pressed oil)...and like I said...in painting..the yellow is fugitive and disappears.<br />..kindest regards...Louisabuelitoluishttps://www.blogger.com/profile/13175931742020477731noreply@blogger.com