RC Car Bodyshell Painting: A Step-by-Step Guide for Custom Finishes

Quick Answer

To paint an RC car bodyshell, start with proper cleaning and masking, then apply thin coats of polycarbonate-specific paint to the inside of the shell. Let each coat dry, peel off the overspray film, and finish with a protective clear coat. This method gives a durable, professional-looking finish.

Painting your RC car bodyshell is one of the most satisfying ways to make your rig stand out. Whether you're refreshing a basher or creating a show-quality shell, the process is straightforward if you follow the right steps. This guide covers everything from prep to final clear coat, so you can achieve a custom finish that lasts.

We'll focus on polycarbonate (Lexan) bodies, which are standard for most RC cars. Painting on the inside of the shell protects the paint from scratches and chips, giving a glossy look on the outside. With a few tools and some patience, you'll have a shell that looks professionally done.

What You'll Need

Before you start, gather your supplies: a clean RC bodyshell, polycarbonate-specific spray paint (like Tamiya PS or Pactra), a hobby knife, masking tape, scissors, and a clean, dust-free workspace. You'll also want a small brush for touch-ups and some rubbing alcohol to clean the shell.

Polycarbonate paint is flexible and bonds to the shell, unlike regular acrylic or enamel which can crack and peel. Use paints labeled for Lexan or polycarbonate to ensure durability. You can also use an airbrush with polycarbonate-specific paint for finer detail.

• Work in a well-ventilated area and wear a mask to avoid inhaling fumes.
• Lay down newspaper or a drop cloth to protect your work surface.

Prepping the Bodyshell

Start by washing the inside of the shell with warm soapy water to remove any release agent from the manufacturing process. Rinse thoroughly and let it dry completely. Then, wipe the inside with rubbing alcohol to ensure it's free of oils and dust.

Next, cut out the body along the trim lines using scissors or a hobby knife. If the shell has overspray film on the outside, leave it on during painting to protect the exterior. Mask off any windows or areas you want to keep clear using masking tape and paper.

• Use a sharp blade to avoid cracking the polycarbonate.
• Double-check that all surfaces are dry before painting.

Painting the Shell

Shake the spray can thoroughly for at least a minute. Hold the can about 6-8 inches from the shell and apply light, even coats. Start with a light mist coat to help the paint adhere, then build up with several thin coats, allowing 10-15 minutes between each. This prevents runs and drips.

For a multi-color design, paint the lightest colors first, then mask off those areas before applying darker colors. Remove masking tape while the paint is still slightly tacky to avoid lifting the paint. Once all colors are applied, let the shell dry completely for at least 24 hours.

• Don't rush—thin coats are the key to a smooth finish.
• If you make a mistake, you can carefully remove paint with a cotton swab dipped in polycarbonate thinner.

Finishing Touches

After the paint is fully dry, peel off the overspray film from the outside of the shell. Then, apply a clear coat designed for polycarbonate to protect the paint and add gloss. Let it dry completely before handling.

Finally, re-drill any mounting holes if needed and install your body clips or mounts. Your custom-painted shell is now ready to hit the track or trail.

• Use a heat gun or hairdryer on low to help remove stubborn film.
• Consider adding decals or vinyl graphics for extra flair.

Step-by-Step Recap

1. Clean and prep: Wash the shell with soapy water, dry, and wipe with alcohol. Mask off windows and areas you want clear. Check that no dust or oil remains before painting.
2. Apply base coat: Spray a light mist coat of polycarbonate paint, then build up with thin layers, allowing 10-15 minutes between coats. Avoid thick coats to prevent runs.
3. Add colors and details: Paint light colors first, mask, then apply darker colors. Remove tape while still tacky. Let the paint dry fully before removing tape to avoid smudges.
4. Clear coat and finish: Peel off overspray film, apply a polycarbonate clear coat, and let dry completely before reinstalling. A clear coat protects your work and adds gloss.

Product Facts

• RCG Racing 18-Series 1/18 Brushed Monster Truck - Red: This is part of our 18-series range. These are our most popular 1/18th scale cars in various vehicle types. Parts are cross compatible across the range! If you're painting a bodyshell for this truck, you can swap shells between different 18-series models, giving you more options for customization.
• RCG Racing MT-One 1/16 Brushless Monster Truck - Black: With a 3800KV brushless motor at its core, this compact truck delivers incredible acceleration and can reach speeds of up to 30mph, offering an adrenaline-fueled driving experience. A high-speed truck like this deserves a durable paint job that can withstand impacts and debris, so proper prep and clear coat are essential.

Painting your RC car bodyshell is a rewarding project that lets you express your style. With the right prep and technique, you'll get a durable, professional-looking finish that will turn heads at the track. Take your time, follow these steps, and enjoy your custom creation!