How to Strip Paint from Miniatures Safely: A Step-by-Step Guide

Quick answer

To strip paint from miniatures safely, first identify the material (metal or plastic), then choose a suitable paint remover. For metal models, use acetone or isopropyl alcohol; for plastic, use a gentler option like Simple Green or isopropyl alcohol. Always test on a small area, wear gloves, and work in a ventilated space. Soak, scrub with a soft brush, and rinse thoroughly.

Stripping paint from miniatures is a common task for hobbyists who want to restore secondhand models or fix a paint job gone wrong. Whether you're working on a used metal miniature or a plastic model, the process requires care to avoid damaging delicate details or melting the material. With the right approach, you can bring your miniatures back to a clean slate and repaint them with confidence.

This guide walks you through the safe paint removal process step by step. We'll cover how to identify your model's material, choose the right stripping agent, and execute the stripping without harming the miniature. You'll also find practical tips to avoid common mistakes and ensure a successful restoration.

Identify the Miniature Material

Before you begin stripping, you must determine whether your miniature is made of metal, plastic, or resin. Metal models are the most forgiving and can handle harsh chemicals like acetone. Plastic and resin models require gentler solutions, as strong solvents can melt or soften them. If you're unsure, check the model's base or contact the manufacturer. For secondhand miniatures, assume plastic unless proven otherwise, as many modern kits are plastic.

A simple test: press a pin into an inconspicuous area. Metal will feel hard and cool; plastic will feel slightly softer and may flex. Resin often has a slight smell and is lighter than metal. Knowing the material prevents irreversible damage.

• Metal: safe with acetone, isopropyl alcohol, and most paint strippers.
• Plastic: use isopropyl alcohol (91% or higher), Simple Green, or dedicated plastic-safe strippers.
• Resin: similar to plastic; avoid acetone and strong solvents.

Choose the Right Paint Stripper

Selecting the correct stripping agent is crucial. For metal miniatures, acetone is fast and effective, but it's highly flammable and must be used outdoors or in a well-ventilated area. Isopropyl alcohol (IPA) is safer and works well on both metal and plastic, though it may require longer soaking. Simple Green is a non-toxic, biodegradable option that's gentle on plastic but slower. Dedicated hobby strippers like Biostrip 20 are also popular for plastic and resin.

Avoid household bleach, oven cleaner, and brake fluid—they can damage models and are hazardous. Always read product labels and follow safety instructions. If you're stripping a valuable or rare miniature, test on a small area first.

• Acetone: best for metal only; use with extreme caution.
• Isopropyl alcohol (91%+): safe for plastic and metal; soak 1-24 hours.
• Simple Green: safe for all materials; may need 24-48 hours soaking.

Gather Your Tools and Set Up a Safe Workspace

You'll need a sealable container (glass or plastic with a lid), a soft-bristled toothbrush or hobby brush, nitrile gloves, safety glasses, and paper towels. Work in a well-ventilated area, ideally outdoors or in a garage. Cover your work surface with newspaper or a plastic sheet to catch drips. Never use containers that will be used for food again.

For metal models, you can use a glass jar with a metal lid; for plastic, use a plastic container to avoid any reaction. Label your container clearly with the contents and date. Keep children and pets away from the workspace.

• Wear nitrile gloves and eye protection.
• Use a dedicated container with a tight lid.
• Work outside or near an open window with a fan.

Soak the Miniature

Place the miniature in the container and pour enough stripping agent to fully submerge it. For metal with acetone, soaking can take as little as 15-30 minutes. For plastic with IPA, soak for 1-4 hours; with Simple Green, 24-48 hours. Check periodically—paint may soften and fall off. Do not leave plastic in acetone or you'll ruin the model.

If the paint is thick or has multiple layers, you may need to soak longer. For stubborn cases, use an ultrasonic cleaner with your stripping solution, but ensure it's safe for the material. Always keep the container closed when not checking to reduce fumes.

• Fully submerge the miniature.
• Check every 30 minutes for plastic; every 15 minutes for metal with acetone.
• Do not use acetone on plastic or resin.

Scrub Away the Paint

After soaking, remove the miniature and scrub gently with a soft toothbrush. Work in small circular motions, paying attention to crevices. For metal models, you can use a slightly stiffer brush, but avoid metal brushes that can scratch details. If paint remains, return the model to the soak and repeat. For plastic, be extra gentle to avoid bending thin parts.

Use a toothpick or dental pick to remove paint from deep recesses. Rinse the brush frequently in warm water. If you're using IPA, it will evaporate; keep the container covered between scrubbing sessions.

• Scrub gently; let the chemical do the work.
• Use a toothpick for hard-to-reach areas.
• Never use wire brushes on plastic or resin.

Rinse and Dry

Once the paint is removed, rinse the miniature thoroughly under warm running water to remove all chemical residue. For plastic, use a mild dish soap to ensure no stripper remains. Pat dry with a paper towel and let air dry completely before priming or painting. Any leftover residue can affect paint adhesion.

Inspect the model for any remaining paint specks; if found, repeat the soak and scrub. For metal models, you can dry them with a hair dryer on low heat, but avoid overheating plastic.

• Rinse with warm water and mild soap.
• Dry completely before priming.
• Check for missed spots under good lighting.

Dispose of Waste Properly

Used stripping solutions can be hazardous. Check local regulations for disposal. Acetone and IPA are flammable and should not be poured down the drain. Simple Green is biodegradable but may still contain paint residue; filter it through a coffee filter and reuse if possible, or dispose according to local guidelines. Never mix chemicals.

Clean your container and tools with warm soapy water. Store unused stripper in its original container, away from heat and children.

• Never pour acetone or IPA down the drain.
• Reuse Simple Green if filtered.
• Label and store chemicals safely.

Step-by-Step Paint Stripping Process

1. 1. Identify Material: Determine if your miniature is metal, plastic, or resin. Test with a pin if unsure. Checkpoint: Never use acetone on plastic or resin.
2. 2. Choose Stripper: Select a safe stripping agent: acetone for metal, isopropyl alcohol or Simple Green for plastic. Checkpoint: Always test on a small area first.
3. 3. Set Up Workspace: Work in a ventilated area with gloves, eye protection, and a dedicated container. Checkpoint: Keep children and pets away.
4. 4. Soak Miniature: Submerge the model and wait. Metal: 15-30 min with acetone; plastic: 1-4 hours with IPA or 24-48 hours with Simple Green. Checkpoint: Do not leave plastic in acetone.
5. 5. Scrub Gently: Use a soft toothbrush to remove loosened paint. Repeat soaking if needed. Checkpoint: Avoid metal brushes on plastic.
6. 6. Rinse and Dry: Wash with warm soapy water, rinse thoroughly, and air dry completely. Checkpoint: Ensure no residue before priming.
7. 7. Dispose of Waste: Follow local regulations for chemical disposal. Never pour down the drain. Checkpoint: Reuse Simple Green if filtered.

Products to Help You Strip and Repaint

• Age of Sigmar Gutrippaz GOT-11: Secondhand Shop Product sales are final and sold as-is. Items are 'What you see is what you get' and are purchased exclusively from clients through our Secondhand Store Program. If you buy secondhand miniatures like these, they may come painted. Stripping them gives you a fresh start, but remember that secondhand sales are final.
• Citadel: Contrast Asurmen Blue (18Ml): Citadel Contrast paint is a popular choice for quick basecoating and shading. After stripping, you can repaint with Contrast paints for fast results. They work well over a clean, primed surface.
• Pro Acryl - Ninjon Dark Ivory: Pro Acryl paints are premium high-density pigment in superior acrylic mediums. Once your miniature is stripped and primed, high-quality acrylics like Pro Acryl give smooth coverage and vibrant color.

Stripping paint from miniatures doesn't have to be risky. By identifying your model's material, choosing a safe stripper, and following these steps, you can restore secondhand finds or fix old paint jobs. Remember to work safely and take your time. Once clean, your miniatures are ready for a fresh coat of paint and a new lease on tabletop life.