Molding Defects & Fixes

Where Do Weld Lines Form — and How Do You Move Them Away from High-Stress Areas?

septembre 2, 2026
How Do You Source an Injection Mold from China Remotely — and What Steps Protect You from Quality Surprises When…
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Flow Mark Prevention — How Do You Eliminate the Wavy Lines Near the Gate on Your Injection Molded Parts, and What Causes Them?

septembre 2, 2026
Last updated: 2026-09-04 · 5 min read Gate Vestige Control — How Do You Minimize the Gate Mark on Cosmetic…
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Short Shot Diagnosis — How Do You Identify the Root Cause of Incomplete Mold Filling, and What Are the Corrective Actions for Each Cause?

septembre 2, 2026
Last updated: 2026-09-04 · 5 min read Undercut Design Solutions — How Do You Eliminate or Minimize Undercuts in Your…
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Flash in Injection Molding — What Causes It, How Do You Diagnose the Root Cause, and What Are the Fixes for Each Type of Flash Location?

septembre 2, 2026
Last updated: 2026-09-04 · 5 min read Draft Angle Calculation — How Do You Determine the Minimum Draft Required for…
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Sink Marks in Injection Molding — Why Do They Appear on Ribs, Bosses and Thick Sections, and How Are They Eliminated?

septembre 2, 2026
Last updated: 2026-09-05 · 5 min read Draft Angle Design for Injection Molding — How Much Draft Do You Need…
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Jetting in Injection Molding — What Causes the Snake-Like Surface Defect and How Do You Eliminate It?

septembre 2, 2026
Last updated: 2026-09-05 · 5 min read Injection Molding Boss and Rib Design — What Are the Thickness, Height and…
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Burn Marks in Injection Molding — What Causes the Black or Brown Discoloration at the End of Fill and How Is It Fixed?

septembre 2, 2026
Last updated: 2026-09-02 · 5 min read Injection Part Wall Thickness — What Are the Design Rules for Uniform Walls,…
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Warpage in Injection Molding — What Causes It and How Do You Fix It Without Redesigning the Part?

septembre 2, 2026
Last updated: 2026-09-02 · 5 min read Injection Mold Rib Design Rules — How Thick, How Tall and How Many…
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Weld Lines in Injection Molding — What Causes Them and How Do You Eliminate or Minimize Them?

septembre 2, 2026
Last updated: 2026-09-02 · 5 min read Injection Mold Gate Types — How Do You Select the Right Gate for…
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What Causes Sink Marks in Injection Molded Parts — and How Do You Fix Them?

septembre 2, 2026
Last updated: 2026-09-02 · 5 min read How Much Draft Angle Do You Need — and How Do You Calculate…
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What Causes Internal Stress in Injection Molded Parts — and How Do You Detect It?

septembre 2, 2026
Last updated: 2026-09-02 · 5 min read What Does IATF 16949 Require from Your Mold Design? IATF 16949 is the…
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What Causes Stress Whitening at Snap Fits — and How Do You Design It Out?

septembre 2, 2026
Last updated: 2026-09-02 · 5 min read What Is an Anti-Rotation Boss — and When Does Your Assembly Need One?…
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