When diluting acrylic with water, there should be no more than 30% water to 70% acrylic. This is a technique that is widely taught in many acrylic painting books. Depending on the surface and absorbency of canvas in some cases, diluted acrylic will not cure. Acrylic paints are water soluble and can be easily thinned out with warm water or flow improver/flow aid. Now, I occasionally have a painting with an area on the side that I can’t touch up without a re-pour, or one where I’m not quite sure if I want to keep, repaint, or toss it. Also if you need to add water then don't add too much of it, or you will weaken the paint's layer; keep it down to 1 part of water for every 3 or 4 parts of paint. https://www.facebook.com/texasartandsoul/videos/413574856753040 You end up with the paint catching the surface of your canvas with holes of the underlying color showing through. What You’ll You Need: Wet Dry Sand Paper (220 grit) I recommend this one from Amazon because of the amount you get and it’s a great quality one to use on acrylic paintings. In most cases it’s lazy. This is more of a good thing than a bad thing. When using cheap acrylic paint let the layers dry before applying the next one. It’s almost dry as you scrape the brush across the canvas. If you're ever painting and mess up, don't worry. If Your Paint Is Still Wet. Thick or Dry Paint. Go crazy! Scrape off as much paint as possible with a painting knife, thick piece of paper, or even an old credit card. If the background is still wet, just paint over it. Don’t for… This dries very fast and is painted directly onto the stretched canvas. How to Tell That an Acrylic Paint has Gone Completely Bad . If the lumps are in the container, then you can add a little paint thinner to restore the paint. However, acrylic paint loses its ability to bond when diluted with an excess of water. It can be fixed. Whether you had one too many sips of wine and accidentally sprayed paint across the canvas, or you're a perfectionist whose painting isn't turning out quite like you envisioned, most errors can be erased. Water: Water is your best friend when dealing with acrylic paints. Frame It, Baby! Here’s how to fix acrylic painting mistakes on canvas. Solutions. Oils do not dry as fast as acrylics, so these techniques may work best with those paints. Before diving into the situations where you can fix the dry paint, let’s talk about the only one where you should throw it away. Moisture can easily damage unprotected artwork even if it is framed behind glass. In most cases, you can easily reuse the acrylic paint if it has undergone consistency changes, such as lumping or drying up. Yet, if you catch your acrylic mistake quickly enough, the fixes here may still work. But what if the background is dry and you don't want to … You can even use the back of an old painting to practice on; hey, it’s still a canvas. The amount of these holes depends on the weave of the canvas. Or even better, shift to paint of better quality. I’m finishing an acrylic painting of a still life and wanted to fix a bump(in the background area of the painting) I over sand it and a small part of the canvas lost its texture, as I went to paint back that specific area looks blurry as I try to match the colors of the background, the paint … Pick a dark color to start with and brush using horizontal strokes. Fixing mistakes with acrylic paint … UV Archival Varnish also allows you to display your artwork without using glass. If you have thick or dry paint, you are in luck! How to Fix a Lumpy Acrylic Painting . Brush across the canvas as acrylics, so these techniques may work best with those paints water your. 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