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Injection Molding

Browse our injection molding articles and technical guides.

Mold flow analysis of plastic parts

Short Shot Injection Molding: Systematic Troubleshooting Guide

Short shot injection molding failures cause roughly 15% of first-article rejections on offshore tool launches. This guide walks you through ...

April 9, 20268 min read
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Warpage in Injection Molding: Why Parts Warp and How to Fix It

Warpage injection molding defects cost programs thousands in rework and scrap. This guide covers the four root causes, including differentia...

April 9, 20269 min read

Sink Marks in Injection Molding: Causes, Prevention, and Fixes

Sink marks in injection molding are predictable and preventable. This guide covers the design ratios, process settings, and tool corrections...

April 9, 20269 min read

Rib and Boss Design for Injection Molded Parts: Avoiding Sink Marks

Rib and boss geometry violations cause most preventable sink marks and warpage in injection molded parts. This reference guide covers the 60...

April 9, 202610 min read
3D model of mechanical component displayed

Draft Angle Guidelines for Injection Molding: Smooth, Textured, and Deep-Feature Parts

Draft angle injection molding requirements change with surface finish, texture depth, feature height, and resin shrinkage. This reference gu...

April 9, 202610 min read
Measuring components with precision tools.

Wall Thickness Guidelines for Injection Molding: A Material-by-Material Reference

Wall thickness in injection molding controls fill pressure, cycle time, warpage, and part cost. This reference table covers nominal wall tar...

April 9, 20269 min read
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Injection Molding Tolerances: What’s Achievable and How to Spec Them

Misspecified injection molding tolerances add $8,000 to $25,000 to mold cost and weeks to build time. This reference guide covers achievable...

April 9, 202610 min read
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Injection Molding Gate Types: How to Choose the Right Gate Design

Choosing the wrong gate type costs you cycle time, cosmetic rejects, and rework dollars. This guide covers all seven major injection molding...

April 9, 202610 min read

Overmolding vs Insert Molding vs Two-Shot Molding: Complete Comparison

Choosing between overmolding, insert molding, and two-shot molding drives tooling cost, cycle time, and per-part economics. This guide break...

April 9, 202611 min read