High-Temperature
Plastics
PEEK, PPS, PEI & more for demanding applications.
Explore High-Temperature Plastics
PEEK
Polyether Ether KetoneHeat and chemical resistance for demanding mechanical components.
Explore PEEKPPS
Polyphenylene SulfideChemical resistance, low moisture absorption and dimensional stability.
Explore PPSPEI
Polyetherimide · UltemHigh heat resistance combined with strength and stiffness.
Explore PEIPSU
PolysulfoneTransparency and hydrolysis resistance for hot-water and steam environments.
Explore PSUPPSU
PolyphenylsulfoneA tough sulfone polymer for reusable, heat-resistant components.
Explore PPSUPESU
Polyethersulfone · PESA heat-resistant sulfone polymer for precision molded components.
Explore PESULCP
Liquid Crystal PolymerHigh flow for thin-wall, intricate precision components.
Explore LCPPVDF
Polyvinylidene FluorideChemical and weather resistance for fluid-handling components.
Explore PVDFPAI
Polyamide-imideStrength and wear resistance under high temperatures and loads.
Injection molding + post-cure Explore PAIPBI
PolybenzimidazoleSpecialized materials for extreme thermal and wear requirements.
Injection molding: selected PBI blends Explore PBIPTFE
PolytetrafluoroethyleneLow friction and chemical resistance for seals and sliding parts.
Typically compression molded / machined Explore PTFEWhich Material Fits Your Part?
Share your operating conditions and part requirements with RJC.
Get Material AdviceMaterial Considerations for Injection Molding
The selected grade shapes drying requirements, tooling and dimensional control.
-
Drying & Moisture
Drying needs vary by resin. Confirm the grade’s moisture limit and drying conditions before molding.
-
Melt & Mold Temperature
Confirm the processing window and equipment temperature capability for the selected grade.
-
Shrinkage & Reinforcement
Use grade-specific shrinkage data. Reinforcement orientation can affect warpage and final dimensions.
-
Flow & Weld Lines
Review wall thickness, gate locations and weld lines, especially around load-bearing features.
Is heat deflection temperature the same as continuous-use temperature?
No. HDT measures deflection during a specified heating test under load. For continuous operation, check the selected grade’s long-term thermal data and actual service conditions.
Which materials should I consider for repeated steam sterilization?
PPSU is a common candidate for repeated steam exposure. Confirm the specific grade against your sterilization temperature, cycle count, cleaning agents and mechanical loads.
Should I choose an unfilled or reinforced grade?
Reinforcement can increase stiffness and change shrinkage. Choose according to loads, dimensional needs and surface requirements, accounting for reinforcement orientation.
Can every material listed on this page be injection molded?
No. PTFE must be modified before it can be injection molded. PBI requires suitable injection-molding blends, while injection-molded PAI needs post-curing.
What information should I provide for a material review?
Send your CAD files, target quantity, operating temperatures, loads and chemical exposure. Include critical tolerances, compliance requirements and any preferred material grades.
Find the Right Material for Your Part
Share your CAD files and operating requirements for a material and molding review.