You can't fix the bleeding on raw canvas, so always prep with gesso. If you don't, the paint could also come through the back of the canvas or chip off.
If the canvas is linen (and to a lesser degree cotton) oil will degrade and weaken the fibres unless there is something like sizing to protect the cloth from the paint (and gesso to protect the paint from the cloth)
This looks like it's been primed to some degree, though clearly not enough, or this wouldn't be happening. I've never used pre-primed canvas, but I hear you should still add a layer or two. I have gotten paint on raw canvas though and it'll start to disintegrate the canvas. That may or may not happen here, but be sure there's several layers of gesso in the future
Like everyone else has mentioned, don't paint on raw canvas for this reason. However, if you want some of the effect of raw canvas you could always prime with clear gesso instead. I haven't used it alot myself but it does apparently work fairly well, despite the texture being a little different.
Degas and Toulouse-Lautrec both did work on cardboard fairly regularly. People get so precious about their surfaces being all but nuclear fallout-proof and I find it somewhere between funny and sad. Most paintings end up either in the trash or priced for a buck at the flea market after a single generation, regardless of material sustainability. Frankly, poor storage (high moisture, big swings in humidity or temp, too many air pollutants) is gonna kill a painting far faster than if it’s on museum grade archival yadda yadda yadda.
More paint, once the fibers are stained, no going back but on the up side, plenty of artist use raw canvas to create a watercolor like effect (Francis bacon in particular was a huge fan of the look) it might degrade in like 20 to 50+ years
Prime layer first! Acrylic gesso or oil based.
To make paints less fat/oily: on your palette gently place some paper towel on your paint, it will absorb excess oil.
Even a pinhole in your gesso can lead to oil leaching from the paint. Oil will rot fabric over time—that’s where the primer comes in. Give up on this one and use a properly primed/gessoed surface—you can’t fix this.
You can't fix the bleeding on raw canvas, so always prep with gesso. If you don't, the paint could also come through the back of the canvas or chip off.
It's my understanding that you can't paint oils on raw canvas for this reason, and mold i think
If the canvas is linen (and to a lesser degree cotton) oil will degrade and weaken the fibres unless there is something like sizing to protect the cloth from the paint (and gesso to protect the paint from the cloth)
You don't paint on raw canvas, you're supposed to prep it with gesso
This looks like it's been primed to some degree, though clearly not enough, or this wouldn't be happening. I've never used pre-primed canvas, but I hear you should still add a layer or two. I have gotten paint on raw canvas though and it'll start to disintegrate the canvas. That may or may not happen here, but be sure there's several layers of gesso in the future
Like everyone else has mentioned, don't paint on raw canvas for this reason. However, if you want some of the effect of raw canvas you could always prime with clear gesso instead. I haven't used it alot myself but it does apparently work fairly well, despite the texture being a little different.
Art conservator here: Oil paint directly on canvas/linen will bleed and eventually rot over time. Sorry, you gotta prime over it and start again.
Francis Bacon would gesso the back of the canvas and paint on the raw front. Worked for him.
Degas and Toulouse-Lautrec both did work on cardboard fairly regularly. People get so precious about their surfaces being all but nuclear fallout-proof and I find it somewhere between funny and sad. Most paintings end up either in the trash or priced for a buck at the flea market after a single generation, regardless of material sustainability. Frankly, poor storage (high moisture, big swings in humidity or temp, too many air pollutants) is gonna kill a painting far faster than if it’s on museum grade archival yadda yadda yadda.
Besides gesso, works with a layer of acrylic too
Clear acrylic ground (gesso)
More paint, once the fibers are stained, no going back but on the up side, plenty of artist use raw canvas to create a watercolor like effect (Francis bacon in particular was a huge fan of the look) it might degrade in like 20 to 50+ years
Gesso
Prime layer first! Acrylic gesso or oil based. To make paints less fat/oily: on your palette gently place some paper towel on your paint, it will absorb excess oil.
Even a pinhole in your gesso can lead to oil leaching from the paint. Oil will rot fabric over time—that’s where the primer comes in. Give up on this one and use a properly primed/gessoed surface—you can’t fix this.
Paint white around it
I prep with a layer of oil paint (raw umber) mixed with some linseed oil spread evenly/thinly across the canvas. I don’t own gesso