To repair cracked plastic, a person can use plastic epoxy. While there are several types of plastic glue that sometimes work, some are not as durable as epoxy.
The strongest bond on broken plastic can be formed a two-part epoxy. It is necessary to work quickly in applying the epoxy before it gets hard.
Step 1: Prepare the broken pieces
Clean the surfaces with a damp cloth before mixing the epoxy.
Step 2: Mix the epoxy
On a cardboard tray, use a putty knife to mix an equal part from each epoxy.
Step 3: Apply the epoxy
Use the putty knife to spread the epoxy into the crack between the broken pieces. Allow it to dry completely, up to a week, before using the item.