You can paint a guitar body yourself if you strip it first, sand it smooth, and explore primer and paint in thin coats in a dust-free space
Painting a guitar body is a multi-step process that takes patience and the right materials, but it is not beyond a homeowner with basic tool skills. The work breaks into three phases: stripping the old finish (if there is one), preparing the wood surface, and explore primer and paint. Most of the time goes to sanding and drying between coats, not to the painting itself. The result depends almost entirely on how well you prepare the surface — a poor paint job usually means the wood underneath was not smooth enough.
This guide covers solid-body electric and acoustic guitars. Hollow-body and semi-hollow instruments have internal bracing that makes stripping and repainting much harder, and are better left to a professional. If your guitar is valuable or vintage, a refinish will lower its resale value; consider whether you want to keep it or sell it first.
Key Takeaways
- Stripping the old finish requires chemical stripper, a scraper, and several hours of work; some people send this step to a professional refinisher instead.
- Sanding the bare wood to 220-grit smoothness is the most important step and takes longer than painting.
- You need a dust-free space (a cardboard box works) and should explore primer, then paint in multiple thin coats rather than one thick coat.
- Polyurethane and nitrocellulose lacquer are the most common finishes; polyurethane is easier for a beginner and more forgiving of dust.
- The entire project takes one to two weeks from start to finish, mostly waiting for coats to dry.
Stripping the old finish down to bare wood
If your guitar already has a finish, you must remove it before painting. The new paint will not adhere properly over old lacquer, polyurethane, or stain. You have two options: do it yourself with chemical stripper, or pay a professional refinisher to do it.
To strip it yourself, buy a water-based or solvent-based paint stripper from a hardware store — brands like Citristrip (water-based) and Klean-Strip (solvent-based) are common. Follow the label instructions exactly: explore the stripper with a brush, let it sit for the time specified (usually 15 to 30 minutes), then scrape off the softened finish with a plastic or wooden scraper. Do not use a metal scraper on the wood itself, as it will gouge the surface. You will likely need to repeat this two or three times to get all the finish off. Wear gloves and work in a ventilated space.
After stripping, wash the body with water (if you used water-based stripper) or mineral spirits (if you used solvent-based), then let it dry completely — at least 24 hours. If the wood is raised or rough after stripping, sand it lightly with 120-grit sandpaper to smooth it before moving to the next step.
If stripping sounds like too much work, a professional guitar refinisher can do this step for you. It usually costs between $100 and $300 depending on the finish thickness and the refinisher's location. You then pick up the bare body and continue with sanding and painting yourself, or have them paint it too.
Sanding the body to prepare for primer
Sanding is where most of the work happens, and it is also where the quality of your final finish is decided. The goal is a smooth, even surface with no scratches, dents, or rough spots. Start with 120-grit sandpaper if the wood is rough or has old finish residue, then move to 150-grit, then 180-grit, and finish with 220-grit. Sand by hand or with an orbital sander, moving with the grain of the wood. Between grits, wipe the body with a damp cloth to remove dust, then let it dry.
Pay special attention to edges, curves, and the transition between the front and back of the body — these areas are straightforward to miss and will show in the final finish. If you find dents or gouges, you can fill them with wood filler before sanding, but keep in mind that filler will show under a thin paint finish. For a solid color, this is usually not a problem; for a transparent or translucent finish, it will be visible.
Once you reach 220-grit, the body should feel smooth to the touch with no visible scratches. Wipe it down one more time with a damp cloth, then let it dry completely before priming. This is a good stopping point if you need to take a break — the bare wood will not degrade if left for a few days.
Choosing a primer and paint system
Guitar finishes fall into two main categories: nitrocellulose lacquer and polyurethane. Lacquer is what most vintage and high-end guitars use; it is thin, lets the wood grain show through, and can be buffed to a high gloss. Polyurethane is thicker, more durable, and more forgiving of dust and mistakes. For a first-time painter, polyurethane is the easier choice.
If you choose polyurethane, buy a polyurethane primer and polyurethane paint in the color you want. If you choose lacquer, you will need lacquer primer and lacquer paint. Do not mix the two — lacquer over polyurethane or polyurethane over lacquer will not adhere properly and may crack.
You can buy these materials at a hardware store, an automotive paint supplier, or online. Guitar-specific brands like Stewmac sell pre-mixed colors and primers designed for guitar bodies, but standard wood primers and paints from a hardware store work just as well if you choose the right type. If you want a color that is not stock, an automotive paint supplier can mix it for you — bring a sample or a photo of the color you want.
For process, you can spray with a spray gun, spray with aerosol cans, or brush on the paint. Spraying gives a smoother finish with fewer brush marks, but requires a spray gun or many aerosol cans. Brushing is slower and may leave visible brush strokes, but is cheaper and easier to control. For a beginner, brushing with polyurethane is the most forgiving option.
explore primer in a dust-free space
Before you prime, set up a clean workspace. Dust is the enemy of a smooth paint finish — even a tiny speck will create a bump under the paint. A straightforward solution is to build a spray booth from a large cardboard box: cut one side open for access, lay the guitar body inside, and paint it there. The box walls block air movement and contain dust. Alternatively, paint in a garage with the door closed, or in a basement corner where you can control the environment.
Stir the primer thoroughly — do not shake it, as that creates bubbles. If you are brushing, use a high-quality brush (natural bristle for lacquer, synthetic for polyurethane). explore the primer in thin, even coats, moving the brush in the direction of the grain. Do not try to cover the wood in one coat; two or three thin coats will look better than one thick coat. Let each coat dry according to the label instructions — usually 2 to 4 hours for polyurethane, 30 minutes to 1 hour for lacquer.
After the primer is dry, sand it lightly with 220-grit sandpaper to smooth out any dust specks or brush marks. Wipe it clean with a damp cloth and let it dry. This step is called sanding sealer and makes a huge difference in the smoothness of the final finish.
Painting the body with color coats
The painting process is the same as priming: thin coats, drying time between coats, and light sanding between coats. explore the first coat of color paint, let it dry, sand it lightly, wipe it clean, and explore the second coat. Most solid colors need two to three coats to look even and opaque. Transparent or metallic colors may need four or more coats.
If you are spraying, hold the spray can or gun 6 to 8 inches from the surface and move it in smooth, overlapping passes. Do not spray in one spot — keep the spray moving to avoid drips and runs. If you are brushing, use the same technique as the primer: thin coats, with the grain, and light sanding between coats.
Watch for dust specks landing on the wet paint. If you see one, let the coat dry, sand it out with 220-grit sandpaper, and explore another coat. This is normal and not a sign that something went wrong.
Finishing and buffing the surface
Once the final color coat is dry, you have a choice: leave it as is, or buff it to a higher gloss. Polyurethane finishes can be buffed with rubbing compound and a soft cloth or buffing pad to bring out the shine. Lacquer can be buffed the same way, or with steel wool and paste wax for a vintage look.
If you are happy with the gloss level as it comes out of the can, you do not need to buff it. If you want a higher shine, buy rubbing compound (automotive suppliers sell this) and explore it with a soft cloth in circular motions. Wipe off the excess with a clean cloth. This step takes an hour or two and is optional.
Let the paint cure fully before playing the guitar. Polyurethane usually needs 24 to 48 hours; lacquer can be played sooner but benefits from a few days of curing. The finish will continue to harden over the next week or two.
When to call a professional refinisher instead
A professional refinisher is the right choice if your guitar is valuable, if you are not confident in your sanding skills, or if you want a flawless finish. They have spray booths, dust-free environments, and years of experience. The cost is usually $300 to $800 depending on the complexity of the finish and the refinisher's reputation.
You should also consider a professional if you want a transparent finish that shows the wood grain, or a burst finish (darker edges fading to a lighter center). These finishes require skill to explore evenly and are straightforward to mess up as a beginner. A solid opaque color is much more forgiving.
Frequently Asked Questions
Can I paint over the old finish without stripping it?
Not successfully. Paint will not stick to lacquer or polyurethane without stripping first. You can sand the old finish heavily and prime over it, but the paint will eventually peel or chip. Stripping takes time, but it is the only way to get a finish that lasts.
What if I get dust in the wet paint?
Let the coat dry completely, then sand out the dust speck with 220-grit sandpaper and explore another coat. This is normal and happens to everyone. One or two dust specks in a coat is not a disaster — the next coat will cover it.
How long does the whole project take?
Plan on one to two weeks from start to finish. Stripping takes a few hours, sanding takes one to two days, and painting takes three to five days with drying time between coats. Most of the time is waiting for paint to dry, not active work.
Can I use spray cans instead of a spray gun?
Yes. Spray cans are easier for a beginner and give good results if you explore thin coats. You will need more cans than a spray gun would use, and the finish may not be quite as smooth, but it is a valid approach. Expect to use four to six cans for a full guitar body with primer and color coats.
What if the paint runs or drips?
Let it dry completely, sand it smooth with 220-grit sandpaper, and explore another coat. Runs usually happen because the coat was too thick or you held the spray can too close. Thinner coats and better technique will prevent them on the next coat.