10/09/2026
The humble sprue, more important than you might think. Let’s talk about it!
Sprues are one of those parts of the casting process that can be easy to underestimate and sometimes, we know they’re not exactly where you’d like them to be!
But there’s a lot more to sprue placement than simply choosing somewhere convenient.
The position of the sprue plays a huge part in how the metal flows into the piece. If it’s not placed correctly, a piece may not fill properly, come out with holes or porosity, or have other casting issues that can affect the final result.
That’s why we spend a lot of time looking at each individual piece and carefully deciding where the sprue should go. We consider the shape, thickness, detail and how the metal needs to flow to give the best possible chance of producing a clean, successful casting.
So if you ever look at a sprue and think “why on earth did they put it THERE?”… there’s almost certainly a reason!
It might not always be the most obvious (or aesthetically pleasing) choice, but good sprue placement is an important part of getting the best possible result for your piece.
We promise, we’re not just sticking them wherever they fit!
