Posts

Injection Molding Blog | Plastic Mold Manufacturing Insights | JBRplas

Technical insights on plastic injection molding, mold manufacturing, material selection, and quality — from the JBRplas engineering team. Articles cover DFM …

Nylon PA66 and PA6 Injection Molding — A Complete Guide for Automotive and Industrial Parts
08/10 Nylon
Nylon PA66 and PA6 Injection Molding — A Complete Guide for Automotive and Industrial Parts

A Tier 1 automotive engineer is designing an HVAC bracket that must survive 110°C …

17 min Read
Splay Marks and Silver Streaks in Injection Molding — Moisture, Shear, and Material Degradation
08/07 Splay Marks
Splay Marks and Silver Streaks in Injection Molding — Moisture, Shear, and Material Degradation

A quality engineer at a medical device contract manufacturer is holding a …

18 min Read
Burn Marks and Gas Traps in Injection Molding — Venting Design, Diesel Effect, and Process Solutions
08/06 Burn Marks
Burn Marks and Gas Traps in Injection Molding — Venting Design, Diesel Effect, and Process Solutions

A process engineer at an automotive lighting supplier is inspecting a polycarbonate lens — …

15 min Read
Flash in Injection Molding — Root Causes, Clamp Force, and Process Window Control
08/05 Flash
Flash in Injection Molding — Root Causes, Clamp Force, and Process Window Control

A process technician at an electrical components manufacturer is standing in front of a …

14 min Read
Weld Lines in Injection Molding — Formation, Strength Loss, and How to Minimize Them
08/04 Weld Lines
Weld Lines in Injection Molding — Formation, Strength Loss, and How to Minimize Them

A product engineer at a medical device company is holding a failed burst-test housing. The …

15 min Read
Living Hinge Design Guide — Geometry, Material Selection, and Fatigue Life for Injection Molded Hinges
07/31 Living Hinge
Living Hinge Design Guide — Geometry, Material Selection, and Fatigue Life for Injection Molded Hinges

A product designer at a consumer goods company is developing a snap-close container for a …

12 min Read
Thin-Wall Injection Molding — High-Speed, High-Pressure Processing for Wall Thickness Under 1.5 mm
07/31 Thin-Wall Molding
Thin-Wall Injection Molding — High-Speed, High-Pressure Processing for Wall Thickness Under 1.5 mm

A product design team at a consumer electronics company is developing a next-generation …

12 min Read
Ejector System Design for Injection Molds — Pins, Blades, Stripper Plates, and Return Sequencing
07/30 Ejector System
Ejector System Design for Injection Molds — Pins, Blades, Stripper Plates, and Return Sequencing

A mold designer is reviewing T1 samples from a new tool for a medical device housing — a …

14 min Read
Injection Molding vs Urethane Casting — How to Choose the Right Process for Low-to-Mid Volume Plastic Parts
07/29 Urethane Casting
Injection Molding vs Urethane Casting — How to Choose the Right Process for Low-to-Mid Volume Plastic Parts

A product development team at a medical device startup has finalized the design of a …

9 min Read