I thought it would be interesting to see how well a simple hot glue gun with standard hot glue could produce injection molded parts. Although the parts did not all turn out perfect I thought the results were pretty impressive considering the simplicity of the method used. Here is a video of my trials.
After my initial trials I poked around on the web a bit and found that this is nothing new. There is even a company that sells an “Injection Moulding Pack” Mind Sets Online. The description of this You Tube Video even talks about polyethylene in the shape of glue sticks.
For more details on the molds I used for these tests and to find out about my homemade plastic injection molding machine see my Home Injection Molding web page.