One silicone square mold that is 1/6th of an oval. Featuring three straight sides and one with natural ridges. Inspired by real agates and geodes. Each side is approximately 4 by 4 inches long. Perfect size for coasters or other home decor using resin and acrylic pour methods. The mold cavity is 1/4th inch (0.24) deep. Four corner pieces makes a circle and four corners with two middle pieces makes an oval.

Due to the nature of silicone molds, I can’t accept returns or exchanges on handmade silicone molds. Non handmade molds and all non custom cabochons can be returned or exchanged.

More Information 

Mold Star® silicones cure to soft, strong rubbers which are tear resistant and exhibit very low long term shrinkage. Molds made with Mold Star® will last a long time in your mold library and are good for casting wax, gypsum, resins, concrete and other materials. Cured Mold Star® rubber is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys. This is a platinum cure silicone.

It’s recommended to wash your molds after use. Warm soapy water and air dry. It may not be necessary to wash after every use, but at least every after every few.

This brand of silicone is not food safe.