How to Prime Resin Miniatures for Painting
If you're painting high-detail resin TTRPG miniatures, proper priming makes all the difference. Raw resin can repel paint, show layer lines, or chip easily — but a good priming job gives you a clean, durable surface with strong paint adhesion.
How do you prime resin miniatures for painting?
To prime resin miniatures, wash the model in warm soapy water to remove residual oils, let it dry completely, and apply 2 thin coats of an acrylic-safe spray or brush-on primer. Allow the primer to cure fully before applying miniature paints.
- Wash the miniature in warm, soapy water and allow to air dry.
- Sand support nubs, check scale, and fill surface gaps with modeling putty.
- Apply 2 thin coats of acrylic-safe primer (spray, airbrush, or brush-on).
- Allow 12 to 24 hours for the primer to fully cure before painting.
🧽 Step 1: Wash Your Mini
Even if it looks clean, resin miniatures may still have leftover release agents or handling oils. Gently scrub with warm water and mild dish soap using a soft toothbrush. Rinse thoroughly and let dry completely.
🛠️ Step 2: Check for Scale, Gaps, and Blemishes
Inspect for seam lines, support nubs, or small print defects. Lightly sand any rough spots with a fine-grit file or wet sandpaper. If your multi-part model has join lines, use modeling putty (like Green Stuff) or a resin-safe gap filler to smooth the seams before priming. Finally, make sure your model fits your tabletop grid properly using our Resin Sizing and Scale Guide.
⚠️ Safety Tip: Always wear a dust mask or respirator when sanding resin miniatures to avoid inhaling micro-particles, and always use spray primers in a well-ventilated outdoor area.
🎨 Step 3: Choose the Right Primer
Selecting the right primer depends on your application method and preferred painting workflow:
- Airbrush & Brush-On Primers: High-detail painters often prefer water-based acrylic polyurethane primers like Badger Stynylrez or Vallejo Surface Primer for extreme control, self-leveling, and smooth coverage without clogging fine details.
- Spray Can Primers: Fast and convenient for bulk batching. Look for fine-surface hobby sprays from trusted brands like Tamiya, Citadel, or The Army Painter (always choose a flat or matte finish).
📏 Quick Priming Tips
- Prime in light, thin layers to avoid obscuring fine details.
- Let primer cure fully before applying acrylic paint (ideally 12 to 24 hours).
- Choose white, gray, black, or one of the 7 custom primer shades we offer for pre-primed orders to match your exact paint scheme.
Want your miniatures to arrive ready-to-paint? Learn more about our custom prep options in our Resin Miniature Finish Options Guide. If you have additional questions about custom orders or materials, check our Frequently Asked Questions.