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Injection Molding

Browse our injection molding articles and technical guides.

Plastic Resin Selection for Injection Molding: Decision Tree + Table

Choosing the wrong resin forces tooling restarts and program delays averaging 8 to 14 weeks. This guide gives you a structured decision tree...

April 9, 202611 min read

Injection Mold Cooling Channel Design: Rules, Conformal Cooling, and Cycle Time Math

Injection mold cooling channel design controls more of your cycle time than any other tooling variable. This guide covers channel diameter r...

April 9, 202611 min read

Injection Mold Base Selection: DME, HASCO, LKM, and What Chinese Shops Actually Use

Your injection mold base selection locks in cost, lead time, and spare parts strategy before the first cavity pocket is cut. LKM dominates C...

April 9, 202610 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

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

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

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

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