Most people use keys in their daily lives, so decorating a key chain can be an appealing project. Acrylic casting resin is a good choice for making custom key chains because it is simple to use and different objects can be embed easily into the resin. Any object can be used - coins, shells, beads or even organic materials like flowers. Making a good resin piece requires some set-up, but the project is suitable for many ages and skill levels.
Coat your mould with mould release. This will help preserve your mould for future use. (See Reference 1)
Mix your resin and catalyst in the paper cup using the craft stick by following the instructions on your resin packaging. Precision is important for setting a good casting. Try to make as few bubbles as possible. If you wish to add dye or small objects, like glitter, to your key chain, mix them into the resin at this point. (See References 1 and 2)
Fill your mould with resin. If you wish to add objects, fill the mould halfway instead, wait for the resin to set up enough that the object will not fall to the bottom of the mould, then put your object inside. Fill the mould the rest of the way. (See References 1 and 2)
Carefully pop any bubbles that form as quickly as possible, before the resin begins to set. (See References 1 and 2)
Put the chain end of your blank key chain into the resin. The resin will set around the chain, permanently attaching it to the resin object.
Wait 24 to 48 hours for the acrylic to set completely, then remove it from the mould. (See Reference 1)
Work in a well-ventilated area. Wear gloves to protect your hands, and cover your workspace with newspaper or other protective material. (See Reference 2) For a unique piece, try making your own mould from a mould compound. (See Reference 2)