Overmolding with Santoprene using Medium Machinery Injection Molding Machine



Over molded strain relief part using Santoprene injected from Medium Machinery injection molding machine. Two piece 4″x4″ mold with #6-32 x 0.5″ machine screw inserts and 16 gauge flat landscape wire was designed by me and machined on my Sherline 2000 CNC mill. There are many kinds of Santoprene. This is type # 121-73W125 : http://www.exxonmobilchemical.com/Chem-English/productsservices/specialty-elastomers-advanced-product-data-search.aspx . It’s very robust, yet flexible. It is said to be used on many tough automotive applications like window and door gaskets. The design of this strain relief is a combination of a built in grommet and strain relief and for extra security is bolted onto the enclosure with #6-32 machine screws and nuts. The wire is a two conductor 16 gauge landscape wire that can be found at Home Depot.


Post time: 04-22-2017