Today's KNOWLEDGE Share
🔹 Why Venting Is a Critical Detail in Mold Design
In injection molding, venting may seem minor—but it plays a major role in part quality.
When plastic fills the mold cavity, air needs to escape. If vents are missing or poorly placed, the trapped gas causes:
❌ Burn marks
❌ Incomplete filling (short shots)
❌ Weld lines
❌ Flashing or surface defects
A good venting strategy ensures:
✅ Smooth flow without trapped air
✅ Better surface quality
✅ Lower injection pressure
✅ Longer mold life
Our engineers evaluate vent locations as part of every DFM review—long before the mold is built. It’s just one of those behind-the-scenes decisions that leads to fewer defects and more consistent results.
Design smart. Vent smarter.
source : SCSPlastic
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