You can make a simple white out at home using white acrylic paint as the base, thinned to a brushable consistency. The result won’t be identical to store-bought correction fluid, but it works well enough for covering mistakes on paper. There are a few approaches depending on what you have around the house.
The Simplest Method: White Acrylic Paint
White acrylic paint is the closest household product to commercial white out. Both rely on the same key pigment, titanium dioxide, to create an opaque white layer over ink. Titanium dioxide has one of the highest refractive indexes of any common pigment, meaning it bends and scatters light extremely well. That’s what makes it so effective at hiding dark marks underneath.
To use acrylic paint as correction fluid, squeeze a small amount of white acrylic paint into a small container with a lid (an old nail polish bottle works perfectly). If the paint is too thick to apply in a thin, even layer, add a few drops of water at a time and stir until it reaches a fluid, slightly runny consistency. You want it thin enough to brush on smoothly but opaque enough to cover ink in one coat. Apply it with a fine brush, a toothpick, or a straightened paperclip, and let it dry completely before writing over it.
A Thicker, More Durable Version
If you want something with a bit more body that sits flatter on the page, you can mix a paste using three ingredients:
- White acrylic paint: 1/2 cup
- Cornstarch: 1/4 cup
- Wall spackling paste: 1 cup
This creates a thicker texture paste rather than a true correction fluid. It’s useful for craft projects or covering larger areas, but for correcting a single word on a page, it’s overkill. The cornstarch helps absorb moisture and gives the mixture a smoother, more matte finish once dry. For basic paper corrections, stick with thinned acrylic paint alone.
How Commercial White Out Differs
The original correction fluid was invented in 1956 by Bette Nesmith Graham, a typist who mixed tempera paint in a kitchen blender and called it “Mistake Out.” She gave small bottles to her coworkers, and it eventually became Liquid Paper.
Modern commercial formulas have moved well beyond tempera paint. A typical bottle contains titanium dioxide as the white pigment, dissolved in fast-evaporating solvents like mineral spirits or solvent naphtha, along with resins that help the fluid bond to paper and dry into a hard, smooth surface. Those solvents are what make store-bought white out dry in seconds rather than minutes. They’re also what gives it that strong chemical smell.
Your homemade version, being water-based, will take longer to dry (roughly 30 seconds to a couple of minutes depending on thickness) and may not feel quite as smooth under a pen. But it’s nontoxic, cheap, and works in a pinch.
Keeping It From Drying Out
The biggest problem with homemade correction fluid is that it dries out in the container. Water evaporates, the paint thickens, and within a few days you’re left with a solid lump. A few habits will prevent this.
Always keep the lid tightly sealed when you’re not using it. If your container doesn’t have a good seal, stretch plastic wrap over the opening and secure it with a rubber band. Check the consistency every few uses by brushing a line on scrap paper. If it’s getting thick, add one or two drops of water and shake or stir thoroughly. Don’t add too much water at once, as you’ll dilute the pigment and the fluid won’t cover ink properly.
If you’re using an old nail polish bottle, the built-in brush makes application easy, but the small opening also means the fluid near the rim dries first and can clog the bottle. Wipe the rim clean before closing it each time.
Tips for a Clean Application
Apply the thinnest layer that fully covers the mistake. Thick layers take longer to dry, can crack, and create a raised bump that’s obvious on the page. If one coat doesn’t fully hide the ink, let it dry and apply a second thin coat rather than globbing on a thick one.
Let the correction fluid dry completely before writing over it. Writing on a still-wet surface will smear the white layer and pull it up, leaving you worse off than before. With water-based homemade versions, give it at least 60 seconds. You can test by lightly touching the edge with your fingertip.
Ballpoint pens write more reliably over dried correction fluid than gel pens or markers. Gel ink tends to bead up on the smooth, slightly glossy surface. If you need to use a gel pen, let the white out dry for a full two to three minutes so the surface has time to lose its tackiness completely.