4" Square Zigzag Coaster Mould

The 4" Square Zigzag Coaster Mould is a silicone casting mould designed for making resin coasters with a bold, geometric zigzag texture on the surface. Measuring 4 inches square, it is a popular size for functional coasters that fit standard mugs and glasses — ideal for home décor projects, gifting, and small resin businesses.

Made from flexible silicone, this mould releases cured epoxy or UV resin cleanly without the need for a mould release spray. The zigzag pattern adds depth and visual interest to plain pours, making it a great choice whether you are working with alcohol inks, pigment powders, or resin dyes.

• 4-inch square size — fits standard mugs, glasses, and cups comfortably
• Geometric zigzag texture adds a raised pattern to finished resin coasters
• Flexible silicone body allows easy demoulding without cracking or warping your piece
• Compatible with epoxy resin, UV resin, and concrete or plaster pours
• Reusable mould — clean with mild soap and water after each use for long mould life
• Great for hobbyists, home crafters, and small resin businesses selling coaster sets
• No mould release spray required for most standard epoxy resins

How to Use

Mix your epoxy resin as per the manufacturer's ratio, add pigments or inks as desired, and pour slowly into the mould to avoid air bubbles. Use a heat gun or torch lightly over the surface to pop bubbles. Allow to cure fully (typically 24–48 hours for epoxy) before demoulding. For UV resin, cure under a UV lamp in layers for best results.

Safety Tips

Always wear nitrile gloves and work in a well-ventilated area when handling uncured resin. Keep resin and moulds away from children. Do not use this mould in a microwave or conventional oven. Avoid contact of uncured resin with skin and eyes.