Engineering Articles
Polycarbonate Injection Molding: Grades, Drying, Process and Inspection
How PC grade, drying, gate design and molding conditions affect shrinkage, defects and inspection, with…
Compression Set in Elastomers: Testing, Graphs, Recovery and Seal Design
Compression set is the unrecovered deformation of rubber after a specified loading and recovery period….
Impact Strength of Plastics: Izod vs Charpy, Notch Sensitivity, Temperature and Design Use
Izod and Charpy impact results depend on method, notch, temperature and manufacturing history. Learn how…
What Is Urethane? Types, Properties, Uses, and Casting
Urethane is a family of polyurethane materials. Learn how to select cast elastomer grades, read…
Polypropylene vs Nylon: UV Resistance, Weathering Tests and Grade-Level Selection
Polypropylene vs nylon UV resistance walked through at the grade level: PA6/PA66/PA12 differences, HALS and…
Heat Deflection Temperature (HDT): Tests, Factors and Design Limits
Heat deflection temperature is a controlled bending test, not a continuous service-temperature limit. Compare ASTM…
Laser Cutting Materials: What Can You Cut and What Are the Limits?
Compare which materials can be laser cut and why machine type, thickness, edge quality, safety…
Best Plastics for Laser Cutting: Materials, Safety and Cut Quality
Cast PMMA is often suitable for CO₂ laser cutting, but other plastics can melt, char…
Plastic Creep: Deformation, Testing, Curves, and Long-Term Design
Plastic creep can change fit and clearance under steady load. Learn to read creep curves,…
ABS Injection Molding: Grade Selection, Temperatures, Shrinkage and Part Validation
Choose an ABS molding grade, establish processing conditions and check shrinkage, cosmetic defects and finished…
