3" Zigzag/Agate Coaster Mould

Create stunning agate-inspired coasters at home with this 3-inch Zigzag Agate Coaster Mould from Shrebhavi. The mould features a distinctive zigzag edge pattern that mimics the natural look of agate slices — perfect for resin pours with alcohol ink, mica pigments, or metallic powders.

Made from flexible silicone, this mould releases cured epoxy or UV resin cleanly without tearing or distorting your piece. Whether you are a hobbyist exploring resin art or a small business making coasters to sell, this compact 3-inch size is ideal for single-drink coasters, decorative pieces, and gift sets.

• 3-inch diameter with a zigzag agate edge design for a natural stone look
• Flexible silicone construction — easy demoulding without breaking your cured resin piece
• Compatible with epoxy resin, UV resin, and casting resin
• Smooth interior surface gives your coaster a glossy, polished finish straight from the mould
• Reusable and durable — holds shape across multiple pours
• Great for mica pigments, alcohol inks, and resin dyes to achieve agate-style effects
• Compact size suits gifting, home décor, and small-batch craft businesses

How to Use

Lightly spray the mould with a mould release agent or apply a thin coat of petroleum jelly before pouring for easier demoulding. Mix your epoxy resin as per the manufacturer's ratio, add your chosen pigments, and pour slowly to avoid air bubbles. Allow the resin to cure fully (typically 24–48 hours for epoxy) before flexing the mould to release your coaster. UV resin users can cure under a UV lamp in minutes.

Safety Tips

Always work in a well-ventilated area when using epoxy or UV resin. Wear nitrile gloves and avoid skin contact with uncured resin. Keep resin materials away from children. Wash the silicone mould with mild soap and water after use and store flat to maintain its shape.