How to Create Epoxy Resin Coasters

Making your own epoxy resin coasters is a fun, rewarding project — perfect for gifts, décor, or functional art. Follow this step-by-step guide to get started:

📦 Step 1: Gather Your Materials
You'll need:
✅ Epoxy resin and hardener (food-safe if the coasters will be used for drinks)
✅ Silicone coaster molds
✅ Release agent (optional)
✅ Pigments or alcohol inks (optional)
✅ Stirring sticks and mixing cups
✅ Heat gun or torch
✅ Decorative elements like dried flowers, glitter, gold leaf (optional)

🧼 Step 2: Prepare the Molds

• Clean your molds thoroughly and make sure they’re completely dry.
• Apply a release agent if desired (e.g. mold release spray or thin petroleum jelly).
• This makes demolding easier and preserves your molds.

⚗️ Step 3: Mix the Epoxy Resin

• Follow the manufacturer’s ratio (e.g. 2:1 or 1:1, depending on the product).
• Mix in a clean cup using a stir stick, scraping the sides and bottom.
• Mix slowly to minimize air bubbles.

🎨 Step 4: Add Colour (Optional)

• Add pigments or alcohol inks to the resin.
• Start with a small amount and increase as needed.
• Stir until colour is evenly blended.

🫙 Step 5: Pour the Resin into the Molds

• Carefully pour the resin into your prepared coaster molds.
• Fill to your desired thickness (typically 6–12mm / ¼–½ inch).
• Add decorative items or create colour layers as desired.
• Use a toothpick or stir stick to position embedded items.

🔥 Step 6: Remove Air Bubbles

• Use a heat gun or torch on low heat to sweep over the surface.
• Hold it a few inches away and move continuously.
• This helps air bubbles rise and pop without scorching the resin.

⏳ Step 7: Allow the Resin to Cure

• Place molds in a dust-free, undisturbed space.
• Follow the curing time in the resin instructions (usually 24–48 hours).
• Keep the molds level to ensure even curing.

🔓 Step 8: Demold the Coasters

• Once fully cured, gently flex the mold to release the coasters.
• If needed, push from the bottom or use a mold release spray around the edges.
• Take care not to crack or bend your coasters during removal.

🛠️ Step 9: Finishing Touches (Optional)

• Sand rough edges or surfaces with fine-grit sandpaper or a rotary tool.
• If desired, apply a clear resin topcoat for a glossy, glass-like finish.

☕ Step 10: Enjoy Your Coasters
Your resin coasters are ready to use, gift, or sell!

• Store them in a cool, dry place to protect the finish.
• Avoid placing hot items unless the resin is rated heat-resistant.

⚠️ Safety Reminders

• Wear nitrile gloves and work in a well-ventilated area.
• Always follow the manufacturer’s instructions for your resin system.