Tech Tip with JOHN!

A mold sprue is the place where casting material flows into a closed mold. It is very important to place it in the correct area for best filling performance and also choose the right size for your part. John shows us some helpful tips on how to use sprues on your mold project.

Shown in BJB's Mold Making Videos and mold making kit, these Sprueswork well with BJB's Mylar Pour Funnels. They are available for purchase on the website.

Sprues: https://bjbenterprises.com/index.php/...
Pour Funnels: https://bjbenterprises.com/index.php/...
Vents: https://bjbenterprises.com/index.php/...
Straws: https://bjbenterprises.com/index.php/...

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