How to Thin Craft Paints for a Smooth Finish (No More Globby Mess!)
How to Thin Craft Paints for a Smooth Finish (No More Globby Mess!)
Meta Description: Tired of chalky, textured miniatures? Learn the simple secret to thinning Apple Barrel and FolkArt craft paints for a professional, smooth finish on your models. Easy guide + perfect mix ratio!
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Let's be honest. We've all been there. You excitedly open a new bottle of cheap craft paint, load up your brush, and slap it onto your miniature. But instead of a smooth coat, you're left with a gloppy, detail-obscuring mess that looks like a textured cake frosting. It’s the number one reason beginners quit.
But I’m here to let you in on a secret: It’s not the paint. It’s how you’re using it.
The single most important skill you can learn in miniature painting is how to thin your paints. And for craft paints like Apple Barrel and FolkArt, it’s not just important—it’s mandatory. This one technique will improve your results more than any expensive brush or premium paint ever could.
Ready to transform your painting? Let’s dive in.
Why You MUST Thin Craft Paints
Craft paints are designed for things like children's projects and home decor. They come thick to provide coverage on porous surfaces like wood and paper. A miniature’s plastic surface is smooth and covered in fine details. Thick paint will:
Obscure delicate details like facial features and armor textures.
Leave ugly, visible brush strokes.
Dry with a chalky, uneven texture.
Thinning your paint solves all of this, creating a fluid that flows smoothly into recesses and leaves a fine, even layer.
The Golden Rule: The "Magic" Consistency
When you drag your brush through the paint on your palette, it should flow easily back into the path without holding stiff peaks.
Your Step-by-Step Guide to Thinning
What You Need:
Your craft paint (Apple Barrel, FolkArt, etc.)
A palette (a white plate or piece of Tupperware works perfectly)
Water
A brush
The Process:
Place a small amount of paint on your palette. A drop the size of a pea is enough to start.
Dip your brush in clean water and touch it to the paint blob. Don’t add water directly from a cup—it's impossible to control.
Mix thoroughly. Drag your brush through the paint and water until it's fully combined.
Test the consistency. Drag your brush through the thinned paint and see how it behaves. Does it flow smoothly? Or is it still thick and sticky?
Repeat. Add water one drop at a time, mixing after each addition, until you hit that "skim milk" consistency.
Pro Tips & Troubleshooting
Too Thin? If the paint becomes watery and runs everywhere like a wash, you’ve gone too far. Wipe your brush and add a tiny bit more paint to thicken it back up.
Too Thick? You’ll see texture and brush strokes as you apply it. Just add more water!
Patience is Key: You will need 2-3 thin coats for solid, even coverage. This is normal! Let the first coat dry completely before applying the second. The result is a flawless finish that one thick coat could never achieve.
Use a Wet Palette: This DIY tool automatically keeps your paints hydrated while you work. It’s a total game-changer for using craft paints.
Before and After: The Proof is in the Painting
The difference is night and day. A model painted with unthinned paint looks messy and loses all its fine detail. A model painted with properly thinned coats looks smooth, professional, and crisp.
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Conclusion: Embrace the Thin Coats
Learning to thin your paint is a journey, not a one-time test. You’ll get a better feel for it with every model you paint. Don’t get discouraged if your first few attempts aren’t perfect.
Once you master this, you’ll unlock the true potential of those cheap craft paints, saving money without sacrificing quality.
What’s your biggest struggle with thinning paints? Do you have a favorite ratio or trick? Share your experiences in the comments below!


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