Oil Painting materials | DON'T THROW AWAY THAT CANVAS!!!
Vložit
- čas přidán 18. 08. 2019
- In this quick video I go over a few ways you can reuse a canvas you have already painted on.
Patreon - Real Time video tutorials and one on one coaching / paintcoach
Materials
Linseed Oil Medium - amzn.to/2o1HgGq
Oil Paint I recommend for beginners: amzn.to/2XHOCvL
Titanium White
Cadmium Red Hue
Cadmium Lemon
French Ultramarine
Canvas Pad - amzn.to/35fMFsW
Proportional Divider - amzn.to/30yr7qy
Best Brushes Ever! www.rosemaryandco.com:
Gesso: amzn.to/2Z9QDAx
Hi, I am the son of two artists and began painting in my hometown of Richmond, Virginia before I could walk. I was a rare combination of artist and athlete so I moved to Los Angeles in 2008 to play football for USC. I left the team my sophomore year to focus on painting and filmmaking, applying the same focus and discipline from my football career to my art. I primarily work in oils, and spend most free days painting "en plein air" around Los Angeles.
Where to find me:
Website: www.chrisfornataro.com
Facebook: / forza43
Instagram: / forza43
Also check out:
Top 5 Tips for Mixing Color - • Oil Painting For Begin...
Oil Painting: Budget Canvas Options - • Oil Painting | What to...
Oil Painting: How to Fix Mistakes - • Oil Painting : How To ...
To reuse a canvas I have used Rust oleum spray over unvarnished oil paintings for years with no problems. One coat knocks most out, and two coats covers completely. A light sanding to knock off thick paint before beginning and a light sanding after final spray helps with the surface being wonderfully smooth again. So easy!
As a rule , any water based gesso or acrylic over an oil base medium is ill-advised , However , it also may depend on the thickness of the oil applied . For instance , If the oil was thinned to near "water color" consistency , you would probably be alright to sand and gesso over it . Another thing to consider is regardless of the quality of the materials used and their proper application , you may still have a crackle effect over time . I personally love the crackle effect in older paintings , It adds character and indicates time and use . " I wouldn't have that Dali painting anywhere in my home , It has too many cracks " - Said no one EVER ! Any professional artist worth His/Her salt would advise against gesso over oil , but is it a deal breaker ? Not a chance . You do you , and create . God bless.
When using Liquin, this isn't so much a problem, however, you are correct when talking about thicker oil layers if you aren't talking about years of dry times, then its back to normal. If you use a PVA primer, then this is less of an issue all around. Not a lot of people know about the tolerance of oils and the exact reason the oil delaminates from the surface of acrylic, it is for the overall differences of the lifetime and specific movement rates between one medium and the other, VS the tolerances of the flex of the two. As oil ages it becomes less flexible, and so does the acrylic, that is the problem. they retract from one another at different times, and the acrylic becomes thinner under the oil. Oil will form a weak residue inbetween as it ages and the bond will weaken for that, and after the acrylic has hardened this will push away the oil layer, once that dries, the oil falls off. This happens over a couple years, or maybe 150+ years, depending on the content ratios of medium in the oil vs the quality of acrylic.
Point is, if you paint one over the other this will eventually lead to an issue archivally, but it really doesn't matter which one is on top or bottom, if you use acrylic gesso at all, this can happen. What matters is the porosity of gesso or the oil surface, and how well it is going to initially bond with the oil. By sanding, and if the oil is dry enough to sand at all, is the determining factor in whether or not you can get a good bond from the gesso in this case.
Edit: Even the old masters works which are done over rabbitskin glue gesso have these issues, the glue hardens and cracks underneath the oil layers, resulting in delamination and archivists have methods of resolution for the glue layer and flattening out the oil and glue layers before removing the glue altogether, then replacing the gesso layer with a new one, then replacing the canvas as well.
Someone gave me a varnished print. I would like to paint over that with oils. The problem is I don’t know what to use as I want to do the same painting underneath but different colors. How can I paint over a varnished painting with oils?
Water based gesso over oil paint . . . NO NO. But you could certainly put another coat of oil paint over it. Many artists like flake/lead white as a painting base. If you like a toned base, you could add a little raw umber to your white. Lead white is great as a base because lead paint cross links to other oil paints building a strong bond with succeeding layers.
Turn it upside down to eliminate interference of the old painting when you start the new one. Add a touch of any colour to the white gesso to cover the old image more effectively.
That is just the advice I was looking for, except comments made after yours say don't used water-based gesso over an oil painting, instead use oil-based primer, because the water-based gesso will eventually peel away from the oil paint. But that means your tip can still work -- add some neutral color to the oil-based primer AND turn it upside down.
@@HTNPSullivan Yes! Maybe even multi-surface primer, then you can use it for oils or acryics
I was told you can’t use acrylic gesso on top of oil
You cant and you shouldn't! Even oil paint you can only use oil paint with a higher oil content if you're painting over top. So I.e if you painted over an old painting with straight oil paint from the tube, if you paint on top of that with any paint that has any kind of thinner in it, it will crack within a couple of years. Remember the rule "Fat over lean"!
An old trick I have used is to spray it with easy off oven cleaner. It will lift a lot of oil paint. You can sand a little and then gesso.
This is great.. I have so many canvass that I’m not happy with. Great tip thank you Chris
Be careful when sanding down canvases with cadmium paints on it. Breathing in cadmium is toxic or something
Adriaan van Pijkeren very good to know. Having a well ventilated painting area is a must. I always have a fan going and a window open. Whenever I use materials I know are toxic like varnish I always take it outside.
Use a wet/dry sandpaper with water so there is no dust. Just rinse it off and let it dry completely before applying paint. Way easier than trying to worry about the proper ventilation!
@@artistrobinhuber good one
Wow. A lot of angered people talking about not using acrylic primer over a bad painting... ok- my first thought is: if you aren't good enough to do a great painting from start to finish and this one is bad enough to start over, then you aren't good enough to worry about delamination 50+ years from now... LOL. But here are my technical thoughts, some correct those that are screaming, and their stereotypical mistakes about why acrylic is bad, and some explains the why/for of what is going on in this case.
When using Liquin, this isn't so much a problem, however, you are correct when talking about thicker oil layers if you aren't talking about years of dry times, then its back to normal. If you use a PVA primer, then this is less of an issue all around. Not a lot of people know about the tolerance of oils and the exact reason the oil delaminates from the surface of acrylic, it is for the overall differences of the lifetime and specific movement rates between one medium and the other, VS the tolerances of the flex of the two. As oil ages it becomes less flexible, and so does the acrylic, that is the problem. they retract from one another at different times, and the acrylic becomes thinner under the oil. Oil will form a weak residue inbetween as it ages and the bond will weaken for that, and after the acrylic has hardened this will push away the oil layer, once that dries, the oil falls off. This happens over a couple years, or maybe 150+ years, depending on the content ratios of medium in the oil vs the quality of acrylic.
Point is, if you paint one over the other this will eventually lead to an issue archivally, but it really doesn't matter which one is on top or bottom, if you use acrylic gesso at all, this can happen. What matters is the porosity of gesso or the oil surface, and how well it is going to initially bond with the oil. By sanding, and if the oil is dry enough to sand at all, is the determining factor in whether or not you can get a good bond from the gesso in this case.
Edit: Even the old masters works which are done over rabbitskin glue gesso have these issues, the glue hardens and cracks underneath the oil layers, resulting in delamination and archivists have methods of resolution for the glue layer and flattening out the oil and glue layers before removing the glue altogether, then replacing the gesso layer with a new one, then replacing the canvas as well.
Thanks for the input. And GO Steelers!
Thanks again, when I get a chance I do watch your videos. This was very helpful.
Absolutely useful information.. thankyou so much..❤
This is okay as long as the painting you are covering is not oil paint a simple neutral oil color is perfect for covering oil paintings
Thanks for the information
I avoid putting gesso back on old oil paintings because there's a risk the gesso will flake off if the oul underneath hasn't fully hardened. I've been painting over old paintings with titanium white and leaving for months which creates an interesting ground I'm not sure I'm fully happy with. I believe Monet used to prime his canvases with white
Why do you leave it for months and not just paint over once dry to the touch?
@@vonkunstler884 i make sure the undercoat is hardened because I'll go on with paint that has paint thinner in it. Both dry at different rates, I believe and that might cause layers to crack.
Nice. Thank you
I used this gesso over a very old oil painting and after two coats, some of the color bled through, is this because I should use and oil based gesso product rather than a water based gesso?
Very helpful cheers
michael mc ewan thanks! Glad to be of help 👨🏻🎨
I think using acrylic gesso over oil is perfectly fine for practice work, or a quick study before doing some studio work. Probably the wrong idea if you are creating something for sale. I prefer to just turn the canvas upside down…or wipe it down with mineral spirits right away if it is a scrapper from the get go.
Thank you for the tutorial, but I have a doubt: is the acrylic chalk on top of the oil paint not in danger of crumbling?
Dear Paint Coach - I've been told that you need to remove varnish from an oil painting before you can paint over it......and also warned against using Gesso to cover an oil painting that you want to paint over.....your video doesn't say anything about whether the painting you covered was varnished or not - can you clarify these questions?
Thanks!
Sand it well - sand off the varnish - and apply a thin coat of titanium white. It is super opaque. Mixing medium with the white is ok, but then you have to use medium on every subsequent layer. If you like to block in with turpentine and paint wash, don’t use medium because of the fat over lean rule. Don’t put gesso over oil. Not a good practice if you plan to keep the painting. For practice it’s fine.
I have a existing oil with a finish on it how do I get a canvas ready to except a new oil painting and can I put gesso over oil witch I have heard you can put over acrylic but not acrylic over oil
Have you ever worked on lead oil primed linen?
A china hair 6" deck brush from home depot/lowes makes a great smoothing brush for gesso- not the greatest for spreading, it takes a LOT to clean it, so I keep it only for the last strokes of smoothing.
Thanks
Thank you, I have been wondering how to do it right. Go Steelers (I mean Rams).
I am taking all the acrylic paintings that I don't care for and painting over them with oils...the same painting, but impressionistic style of oil painting.
Great video.
Just got some primed canvas on a roll. It's so stiff and it curls. Do you have a hack to get it to lay flat? Thanks
Sennelier colored acrylic gesso in the color Red Ochre is sold out everywhere. I need to tone my ampersand boards for a 4 day workshop. How would you tint this, with straight oil paint or acrylic paint?
Acrylic, dont mix oil and acrylic
Question: when knocking out 2-3 paintings a week where or how do you store your wet masterpieces until they dry?
YOU SHOULD NEVER PAINT ACRYLIC OVER OIL - ACRYLIC GESSO CANNOT BE USED IN THIS WAY.
If you say so Karen
It’s true, with the time the paint will start cracking and ruin your nice work …
Ooh i didnt knew that.....
Thanks 👍
It can though and it is, this way someone can practice and save money it’s fine, and a great option.
Hi there,
I know that you can’t put gesso on oil paint. But i was wondering if it will stick on a varnished painting? I bought some old paintings in a thrift shop and i would like to ‘reuse’ the canvas ;)
take varnish off first with a solvent - then when dry sand the oil painting underneath and then use acrylic primer - not a problem
I'd like to cover acrylic then either use oil or acrylic. Can I cover with gesso?
Did you use acrylic gesso over a oil painting?
Can be I gesso a small area on the canvas?
What are you thoughts on using thrift store / garage sale printed canvas as new art canvas? It involves printed canvas being reused for new art. There is no texture at all.
I believe most of the "printed" images are water based or acrylic ...like ink jet printing...I would cover them with a layer of gesso and then have at it with either acrylic or oil paints...get a small one and give a test run ....good luck
Can you put gesso on top of oil paint?
Yes. If the oil is cured to the point that it can be sanded, then it has enough tension to hold gesso, remember, gesso is formulated to have porosity, and will bond to nearly anything, it is a special primer, basically. If you are unsure, use a primer before gesso, but essentially, primer is a cheap gesso. Any "stain-blocker" from the paint store will seal and hold to oil paint.
It will crackle up
In 6 months time. You need to reactivate the oil painting by 1. Using retouching varnish or 2. Linseed oil/turps on a cloth very wet and wile the canvas until saturated. Let rest for 24 hiurs and then paint over
what grit sanding paper/sanding block do you use?
I was wondering about that, too. Plus, another person commented that it's better to use dry/wet sandpaper with water so you don't inhale paint dust. Someone said cadmium paint is especially toxic, so you don't want to breathe that in. You could, of course, wear a mask but yeah, it would be better not to have paint dust on your floors and furniture and curtains, etc.
I painted a part of a picture with oil paint, now I want to finish the rest of the picture with acrylic. If I paint over the oil with acrylic will it peel off? If so, any tips on what I can do?
You can use oil over acrylic, but not acrylic over oil. Some artists lay in the original work using acrylic - dries faster than oil. And finish the work with oil.
Hello sir big fan of your work
I have one question . I have a old oil canvas I want to repaint so can I use white acrylic colour,
Looking forward to your reply
Is it necessary to use gesso on your canvas for oil painting?
Do NOT use acrylic gesso on top of oil, the chemistry doesn't work and it will be horrible. From my research the only way to reuse an oil painting is to just paint on top of it, but make sure to keep the fat over lean rule in mind.
If I have an old oil painting that's not finished how do I go about step by step being able to oil paint on top of
I thought you shouldn't put gesso over oil paint because it'll crack over time??? ive always been told by professors to never do that and under no circumstances to ever paint acrylic over oils? I have 2 big oil paintings I found and planned on reusing but for acrylic paintings and after doing a bunch of reading my research has led me here and left confused lol
This video is bad practice. Acrylic gesso will not adhere with permanence over oil paint. There's no two ways about it.
If its just a studio practice canvas...do to it as you wish...
That was incorrect information. You were right. Do not add gesso over oil!!
I bought an oil acrylic painting from Denmark that I just received and I do not like the color of orange they used. They did put some type of Schlack over it, I emailed them and asked if I could add to the picture if I use oil base painting and they said yes. However, I did not ask them if I could paint over what is currently there and change it. Do you think I would be OK if i painted over what is there and changed the color? Also, as I am not an artist, how do you think I could find someone that could help me do this? Thanks for any advice you can give me.
I paint used canvasses white then when dry start something else!
No one has ever told me you can sand canvases 😅
Could you paint a transparent wave on beach with Sunset reflection!!🙏
I'm confused. Can I use acrylic gesso over dried oil paint, then repaint the canvas.with oil? I see different thoughts.
Found a painting in yard sale. How do I know if it's oil or acrylic? I want to make change to just part of it.
I am no expert, so take what I say with a grain of salt. What I have heard is that you should never put acrylic over oil or it will eventually fail, but since oil can be used over acrylic it shouldn't matter which the original painting is if you use oil paint for your changes. Like I said though, I am no expert and have no idea if there are other factors that may effect things such as the possibility of a varnish layer.
Do an abstract painting of your choice if you feel like doing it.
Transparency and opacity, what's the difference, and how do you use them, thanks
michael mc ewan transparent means that light passes through the paint and you can see the canvas underneath, opaque means thick. A color mixed w white is considered opaque while a color like aliz crimson is considered transparent
opaque means you canNOT see through it, you've obliterated whatever was there - or if you painted a thick dark layer on a window pane, you couldn't see through it. Transparent is like Scotch tape or a piece of plastic wrap, you can see right through it. You can have degrees of covering something up, so someone may refer to the "opacity" (oh-pass-it-ee) that a material creates -- a little, medium, completely -- that sort of thing. It's funny that these kinds of terms are also applied to someone's character or personality. Someone who is transparent is easy to "see through" whether they mean to be or not, and someone who is "opaque" is good at hiding what they think and feel.
@@isabelkaiser8921 You can make a surface opaque with a thick coating of paint, but really opaque means you cannot see through something... so I could put a black wool sweater over my canvas and the sweater would be considered opaque. It can also refer to something that blocks light.
I have always heard that you should not use acrylic gesso over oil paint, do you not have any problem with that? Thanks!
Leigh lassiter I’ve never had any problems. Sanding down the oil paint before hand probably helps 👨🏻🎨👍🏻
I prefer oil primer instead of acrylic gesso, which basically is acrylic paint with less pigments and added marble dust or chalk. So I think it's not a good idea to put acrylic gesso on top of oil paint. You may get along with it if the oil paint is thouroughly dry and if you sand it before gessoing. But if you want to use the canvas for an oil painting, I think it's more archival to just use an oil primer instead of gesso.
@@BDMG Why not just use oil paint to cover the old work, let it dry, and then continue with the new painting?
@@willowbendstudio Because you will end up with some "pintimento"... You must sand the "impasto" before.
I'd like to see you paint a WWII aircraft.
can this be done on an old oil canvas
Do NOT use acrylic gesso on top of oil, the chemistry doesn't work and it will be horrible. From my research the only way to reuse an oil painting is to just paint on top of it, but make sure to keep the fat over lean rule in mind.
That's a cool way to reuse a canvas but you'll have to wait for the paint to dry on it, The way I reuse a canvas is to use a thin coat of white spay paint that has no gloss and let it dry and put another coat till the old oil painting is gone,......
Thank you! I've just recently wondererd if gesso could be applied over the oils. I suppose you could now paint in acrylics after covering the oil paint?
No! You can’t! Read the other comments. That was wrong information. Do not use any acrylic gesso or acrylic paint over oil!!
@@robynb2688 yeah, this guy is a good painter, but this information was very misleading. Just shows you can't just blindly trust someone even though theyve got alot of experience....
Hey @Paint coach I thought u weren't able to put gesso or acrylic primer over oil paint, that oil sticks to gesso but not gesso to oil. Thanks appreciate all vidoes to help us home painters.✌🏻
I sand off the layer of oil paint
@@paintcoach all the way back down to canvas, in the video it was u just sand down high spots where it's thicker paint. That's how I reuse my canvas is sand it all the way back down but its a chore and some time more then once. U know also there's some paint that just stays. So what ur saying is just as long as u sand the oil paint enough it's OK for gesso to go on and won't have a problem with the gesso sticking to the oil under it?
I do the same for practice and practice over the same canvas. But practice only...
Can we repaint an oil painting
Can you sand a canvas that has a big amount of impasto?
If its a bunch of bumps i have used a razor to shave them off. The kind you shave with,
I recently “inherited” several large canvas oil paintings that my grandma painted like 30-40yrs ago. Are the canvases salvageable to reuse for an acrylic pour or are they too old? I don’t want to keep the originals because quite frankly they are UGLY but if I could use the canvas for another project that would be awesome and very easy on the wallet, if I had to replace canvases that size (24x36 - 12x36 - 22x28). Any help would be greatly appreciated. Thanx
Late reply, but no, you should not use acrylic over oil paintings. See other comments here.
What you could do is remove the canvas, retain the frame and restretch new canvas over the top.
Or try oil painting.
Is it ok to add the acrylic gesso on top of oil?
No, itis not!!!!!!!! Oil over acrylic is ok; acrylic over oil, NEVER!
That's what I thought. Thank you.
what about fat over lean?? isn’t gesso acrylic? over oil paint? sounds like peeling down the road
I have a question for anyone who can answer it: how can I tell if an old canvas is oil or acrylic? I have some quite large canvases covered in random abstract impasto. I'm guessing they're probably oil because the paint seems quite hard, but I don't know for sure... And I'm not even sure if they've been varnished over either.
I ruined 3 canvases with acrylic pour... I don't even think it can be fixed
well gesso is really just acrylic paint so you can sand it as much as possible and try to paint over it
Also I don't use brushes,try miswak.
if you've gone oil , stay oil....old (house painter's) saying.
Paint in acrylic over the TOP of OIL paint layers is the typical mistake house painting newbies make.
Walk around and scrape the acrylic paint off with your fingernail EASILY - even years later .
HOUSE paints/FINE art OILS all SIMILAR chemistry..... sort of.
Exception of ;
*THIN layers of either OIL/ACRYLIC, though may still wrinkle ,
*a study which you don t care about, and
*ALKYD resin thinned oils which MAY not be a problem with acrylics
.... stick to the rules - NO PROBLEMS; Just use OIL based Primers......
,or paint over with a number of OIL titanium white layers or the underpainting WILL show through - 100% guaranteed after a few years.
In defence of Paint coach - he did nt say WHAT he was painting over. Great videos from a good source is the norm for this guy 😁
I knew I could gesso over an acrylic painting, but I didn't realize I could've been reusing canvas after using oil paint.
Nope, don’t do it! Water based over oil doesn’t work. You will have to use an oil based primer, or just paint over with more oils.. otherwise the paint may not adhere to the surface causing cracking. Then all that hard work is ruined!
@@stefank271 so there is a difference in gesso?
@@ShadowBurn666 yes, the gesso should say whether it’s acrylic based or oil. I use white acrylic gesso, so that should not be put on top of oil paint. I am no expert, but I have witnessed the effects of this and I would not recommend lol
@@stefank271 and here I was going to start making my own gesso.
You can buy an oil based primer, but don't use acrylic gesso over an oil painting. Ever.
Gesso? thats is putting an acrylic over oil. That is breaking the big rule we have all been taught.
James Oliver now when you sand the oil paint off
Your painting bis real good...just work around the background.My art just keeps getting worse
what is your e-mail? because I sent you one e-mail and it did not send.
Acrylic like gesso should not be painted over oil. Use only oil on oil!
you put Acrylic Gesso over an oil painting? That's WRONG!
I sanded the dry oil paint off first. It worked really well.
@@paintcoach I'm glad I found this video. I have an old oil painting I did in January and I want to try this technique to see if I'll be able to reuse the canvas for a new painting.
Absolutey should NOT put acrylic gesso on an oil painting.
@@gayeadams3675 I remembered this. Unfortunately, I can't get denatured alcohol here in California, so I just sanded the crap out of canvas and primed it. Even did an oil coat
@@KRGraphicsCG Just use some titanium white oil paint, with a little odorless mineral spirits to help it spread....that’s the easiest thing to do.
Hey, I've used acrylic gesso to prepare my canvas for oil paintings, and purchased canvas that has been prepared that way, intended for "oil paints". If paint sticks on it one way, why not another? I also heard about all of the "great masters" paintings that had multiple paintings underneath.
Yes, that's what I also wonder about: If it sticks one way, why not the other way?
I don’t know why one way and not the other - might have to do with the fact that acrylic dries, but oil hardens rather than drying. That would mean the acrylic would seal in moisture from the oils. I’ve been a professional oil painter for 30 years now - and it’s very common knowledge that you must use an oil based paint to cover over an oil painting.
Acrylic gesso won't stick to oil. That's the problem. It'll peel off eventually, along with your new painting.
This is bad advice I'm afraid. No water-based Gesso over an oil painting. Won't stick for very long.
I might advise taking this video down so people do not follow it and get upset when their paintings begin to peel off the surface.
NO NO, you CANNOT put water based gesso over an oil painting
I use white acrylic paint over a bad painting, after it dries of course. Then paint over it.
hahahah That is not THICK paint...
I don't know, but i would be so grateful if anyone helps me, the question is 'can i use acrylic as gesso?' Like i know it's different.. But u kn, i would be grateful if u can help my '2'year old question🗿🤍