tag:blogger.com,1999:blog-7118701728053659190.post5456915466710239849..comments2023-08-11T01:12:28.813+10:00Comments on Spaces Between The Gaps: Gesso vs Primer vs Grounds vs Size - What's the Difference?Fi - WhereFishSing.comhttp://www.blogger.com/profile/08750246299111419881noreply@blogger.comBlogger25125tag:blogger.com,1999:blog-7118701728053659190.post-40411957520642162892016-06-07T10:25:42.481+10:002016-06-07T10:25:42.481+10:00Hi Unknown, no I haven't seen the study you re...Hi Unknown, no I haven't seen the study you refer to. I have just gone and had a quick look for it and found this report on it http://www.naturalpigments.com/art-supply-education/zinc-white-oil-paint-color. Yes I agree that avoiding zinc white would be difficult and based on the findings of the study, something we should be doing! Regarding painting on an acrylic surface, the general recommendation is "For a better bond with oil paint, after the acrylic primer is dry (when it's no longer cool to the touch is a good indicator) you should wipe this surface down with warm water and a clean rag to remove surfactants and allow to dry again (24-48 hrs) before applying oil based paints." Although I agree the manufacturers don't tend to make this clear. I've never seen one sold with a recommendation to delay painting on the surface for months! I've never found anything to indicate exactly how long the cross linking takes.Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-86239810581806152592016-06-05T17:35:30.452+10:002016-06-05T17:35:30.452+10:00Maor and Murray, Queens university, Canada did a r...Maor and Murray, Queens university, Canada did a report on some tests involving acrylic primers/grounds under oil that were slightly worrying. Have you seen this? <br />Unfortunately they didn't try to minimise the amount of zinc white used in the oils, even if avoiding zinc white in oils may prove very difficult as it seems to show up in small amounts in many colours of paint.<br /><br />I have seen older paintings that used acrylic primers showing some flaking but again how much could be due to zinc, aluminium, not removing contaminents with water before starting to use oils who knows. The same goes for painting on the acrylic surface before it has had a chance to completely dry and cure/crosslink after a number of months. Would this help or hinder bonding. The manufacturers don't even seem to comment on this.<br />Anonymoushttps://www.blogger.com/profile/16072506638663885544noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-78304252890878108102016-06-03T09:59:40.691+10:002016-06-03T09:59:40.691+10:00Will,
any "acrylic medium whose manufacturer ...Will,<br />any "acrylic medium whose manufacturer recommends it as a size" should be ok for preparing canvas for oil paint.<br />My understanding with the acrylic ground under oil paint is that it might become an issue over longer time scales ie 40+ years.Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-77002697864014556332016-06-02T05:49:51.625+10:002016-06-02T05:49:51.625+10:00Honest question: Is Utrecht lying to me? They tell...Honest question: Is Utrecht lying to me? They tell me on the phone that I can simply gesso over canvas and then its ready for oil paint. I have never seen oil paint "delaminate" from an acrylic ground... and I have been painting this way for 16 + years.Anonymoushttps://www.blogger.com/profile/01853263144867477213noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-47503626272531335562016-03-02T11:51:37.463+11:002016-03-02T11:51:37.463+11:00From here: https://www.quora.com/Why-was-the-AMIEN...From here: https://www.quora.com/Why-was-the-AMIEN-Art-Materials-Information-and-Education-Network-forum-closed-and-are-there-plans-to-resurrect-it<br />Why was the AMIEN (Art Materials Information and Education Network) forum closed and are there plans to resurrect it?<br /><br />Mark Gottsegen was the administrator, and he died in 2013. I can only assume that is the reason the forum closed.Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-20981175372842863562016-03-01T15:57:35.762+11:002016-03-01T15:57:35.762+11:00Amien.org keeps sending me to an E Cig site. Maybe...Amien.org keeps sending me to an E Cig site. Maybe the link is old, and if it is, do you know the current address for The Art Materials Information and Education Network?Erin Connallyhttps://www.blogger.com/profile/13513242254865875558noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-7394082126262488562015-11-21T00:27:37.477+11:002015-11-21T00:27:37.477+11:00John,
Please do not accept misinformation from ...John,<br /> Please do not accept misinformation from people who assume the makers of acrylic ground have the best interests of oil painters at heart. They do not--they're trying to sell products.<br /><br /> In fact, the Smithsonian forbids the use of an acrylic ground underneath oil paint. The painting will delaminate eventually. That's why there is a coming apocalypse among contemporary oil painters who have bought pre-made canvasses--with acrylic gesso ground--and then proceeded to paint oils on top of that plastic. News flash--those paintings are all going to delaminate. For impasto, it happens even faster. I saw it happen before my eyes. Tom Hunterhttps://www.blogger.com/profile/16773604903218786064noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-27932697400090811752015-11-20T15:52:37.718+11:002015-11-20T15:52:37.718+11:00I'm not sure what an acrylic binder is? What I...I'm not sure what an acrylic binder is? What I do know is that "any acrylic medium whose manufacturer recommends it as a size" should be ok. The same goes for acrylic grounds, as long as the quality is good. If you're unsure, call the manufacturer and ask. They are the experts on their product. Acrylic is plastic and the technology is complex. Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-8629559273073376912015-11-20T05:50:16.097+11:002015-11-20T05:50:16.097+11:00HI , I recently used an acrylic binder ( made by g...HI , I recently used an acrylic binder ( made by gerstacker ) to prime a board , really liked the feel of the surface but am not sure if it will last - the painting was done in oils .<br />Just wondered if you knew if this was okay <br />thanks<br />john---------------https://www.blogger.com/profile/01694637527163441872noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-87627941195210761332015-10-29T11:34:50.900+11:002015-10-29T11:34:50.900+11:00You can't, as far as I'm aware. Unless you...You can't, as far as I'm aware. Unless you own a plastics/acrylic paint factory. Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-31291139460007739542015-10-28T13:26:06.109+11:002015-10-28T13:26:06.109+11:00How can I make my own ACRYLIC gesso at home to pri...How can I make my own ACRYLIC gesso at home to prime my stretched canvas for my acrylic paintings?<br />All the recipes I have found are for traditional gesso.<br />Thanks Alanhttps://www.blogger.com/profile/14665821930321669047noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-36717255718911997822013-12-05T03:07:22.604+11:002013-12-05T03:07:22.604+11:00wow, thank you. This was very helpful and to the p...wow, thank you. This was very helpful and to the point. Thank you so much...keep doing this!!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-90746873422961783122013-09-30T14:34:12.908+10:002013-09-30T14:34:12.908+10:00Tom,
just a couple of points.
The alleged cracki...Tom, <br />just a couple of points. <br />The alleged cracking caused by RSG is actual cracking. It is known to be a real problem.<br />The potential delamination problem is covered in the info if you read to the end. I take my technical painting advice from AMIEN, and I strongly suggest you have a discussion with them about your concerns. <br />Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-57271866510228245662013-09-29T05:50:26.220+10:002013-09-29T05:50:26.220+10:00I must protest against your suggestion that using ...I must protest against your suggestion that using an acrylic ground under oil paint is a better solution than using Rabbit Skin Glue. <br /><br />What you are trading is the alleged cracking induced by RSG for the wholesale delamination of the oil paint from the acrylic base some 50-100 years hence. Artists would hate much more having their entire painting peel off in a sheet rather than having cracking. For that reason, the Smithsonian entirely forbids the use of an acrylic base underneath oil paint. Simply put--oil paint does not stick to plastic.<br /><br />One problem is that many companies make their bread and butter by selling pre-gessoed canvas (acrylic gesso) for use by oil painters. It is in their financial interest to sidestep the problems they are causing and ones that will cause whole generations of oil painters to have their paintings disappear into flakes as the dried oil paint falls off of the acrylic under support. Because of the time it takes for this to happen, this artistic apocalypse is heading our way.Tom Hunterhttps://www.blogger.com/profile/16773604903218786064noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-4163254063695538562013-08-13T06:41:22.473+10:002013-08-13T06:41:22.473+10:00Thank you,
I had no idea what any of it was so th...Thank you, <br />I had no idea what any of it was so thank you very muchAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-61008995092568987282013-08-01T10:19:39.997+10:002013-08-01T10:19:39.997+10:00Ian,
"underneath oil paintings, it is now re...Ian, <br />"underneath oil paintings, it is now recommended to use a pH neutral PVA or any acrylic medium whose manufacturer recommends it as a size." Does GAC100 fit the criteria?<br /> <br />Acrylic gesso is meant to be fine under oil paint with caveats "You must purchase the highest quality ground you can find. That means: do not by acrylic dispersion grounds by price, and be sure the label tells you what's in the stuff. If you're unsure about the latter, call the manufacturer....<br />For a better bond with oil paint, after the acrylic primer is dry (when it's no longer cool to the touch is a good indicator) you should wipe this surface down with warm water and a clean rag to remove surfactants and allow to dry again (24-48 hrs) before applying oil based paints." Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-10066032305615387592013-08-01T01:07:23.673+10:002013-08-01T01:07:23.673+10:00Hi, i have plywood as a surface ( with support on ...Hi, i have plywood as a surface ( with support on back), can i use GAC 100 and then use acrylic gesso on top of this? michael harding seems to suggest not?<br />i intend to use oil paint then.<br />ianIan Healyhttps://www.blogger.com/profile/03555170596324656459noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-82200200673075261032013-07-29T10:09:40.629+10:002013-07-29T10:09:40.629+10:00Hi Anon,
sorry, I don't recall the reasons wh...Hi Anon,<br /><br />sorry, I don't recall the reasons why oil painting directly on RSG is not advisable. I'm sure the AMIEN forums can enlighten you. What I clearly recall is that RSG is a major problem (detailed in this article) and should be avoided completely, so the question seems quite academic really.Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-83615933279352530392013-07-27T08:50:15.426+10:002013-07-27T08:50:15.426+10:00Why can't you paint oils directly over rsg? Th...Why can't you paint oils directly over rsg? They contain some of the same ingredients as the oil based primers.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-22538195118228797772013-07-08T08:43:32.288+10:002013-07-08T08:43:32.288+10:00Hi Erin,
not quite. You need a suitable barrier (...Hi Erin, <br />not quite. You need a suitable barrier (size) between the panel and the paint and so you need to know whether you will be using acrylic or oils to choose the best size for the job. For oils "it is now recommended to use a pH neutral PVA or any acrylic medium whose manufacturer recommends it as a size." For acrylic "the best choice is acrylic medium whose manufacturer recommends it as a size that can block SID - a blocking size."<br /><br />Priming - adding tooth for the paint according to personal preference - is optional.<br /><br />Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-5932651280054769072013-07-06T23:23:51.599+10:002013-07-06T23:23:51.599+10:00Hey Fiona! Thanks for the great clarification of a...Hey Fiona! Thanks for the great clarification of all this confusing stuff. Did I understand correctly that I can paint on a panel primed only with pva sizing and no gesso? Does that apply to oil painting or just acrylic? I'm about to start an oil painting on a HUGE panel and am paranoid about preparing it correctly since it's such a huge financial and time commitment. <br />Thanks!<br />Erin Hardin<br />Erinhardin.wordpress.comAnonymoushttps://www.blogger.com/profile/09682681516384987333noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-23428231562146839812013-06-28T10:35:44.579+10:002013-06-28T10:35:44.579+10:00Hi Fiona and friends
WOndering if you could help ...Hi Fiona and friends<br /><br />WOndering if you could help me with a query i had..?<br /><br />I'm planning to make quite a large painting on a large square of free canvas rolled out on the ground.<br /><br />I'm using a roll of preprimed basic canvas..<br />So my query is as i'd like to thicken it out with extra primer of some sort, making it stronger yet quiet malleable to roll.<br /><br />I would like to make this light enough canvas almost weighed and aged by the application kind of like the feeling of an old wax jacket. It doesn't necessarily have to be a oil finish, as im not sure if im going to be using oil or acrylic yet.<br /><br />Im planning to paint on the ground in public and it will take a lot time to finish so ill be rolling it up and out many times, taking it out and bring home everyday, therefore these extras layers will make the large sheet of canvas just more substantial as in durable also.<br /><br />If anyone gets the kind of feel for how i want to process this pretty flimsy large rectangle of canvas, before i take it on to the street then Please let me know what i should do, or any suggestions would be appreciated greatly thanks.<br /><br />Regards from Berlin,<br /><br />Niall D.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-20747265282817932162013-04-15T11:44:27.405+10:002013-04-15T11:44:27.405+10:00From everything I've read, you should avoid RS...From everything I've read, you should avoid RSG like the plague as it causes more issues than it solves because it has a tendency to draw in water. So I don't know why you'd use it when there are better options out there. As for acrylic gesso over RSG, I don't think RSG is a good base for protecting the paint from the canvas, although I'm making the assumption that you could use it this way. This is really a question for the tech boffins in the AMIEN forums: http://www.amien.org/forums/Fi - WhereFishSing.comhttps://www.blogger.com/profile/08750246299111419881noreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-39623442790338670992013-04-12T08:07:55.394+10:002013-04-12T08:07:55.394+10:00Must oil gesso be used over RSG or is acrylic gess...Must oil gesso be used over RSG or is acrylic gesso ok?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7118701728053659190.post-44381367460502713022010-05-25T14:10:20.386+10:002010-05-25T14:10:20.386+10:00Very informative, thank you. still a bit confused ...Very informative, thank you. still a bit confused but I will re-read. =)Monica Chttps://www.blogger.com/profile/15814973551939122122noreply@blogger.com