High-heat & engineering resinsMaterial-led molding

High-heat and engineering resin molding built around material behavior

Infinity connects resin selection, part geometry, mold temperature, processing, and verification so demanding thermoplastics enter production with a complete technical plan.

High-temperature engineering resin being processed in a modern precision injection molding cell
Controlled thermal systemMaterial + mold + machine
Process architectureHot-oil mold temperature control
Production platform30 all-electric presses
Press range55–500 tons

Start with service conditionsInteractive requirement profile

Select engineering resins for real service conditions

Heat rarely acts alone. Chemical exposure, mechanical loading, dimensional requirements, wear, moisture, and production economics all influence the right resin and processing strategy.

Precision-molded engineering polymer housing secured inside a thermal-cycle test chamber
Thermal exposureHeat + cycling
Thermal profile

Evaluate continuous heat, peaks, and repeated thermal cycling

Temperature targets influence resin family, reinforcement, wall design, mold-temperature strategy, and the process window required to hold the part stable.

  • Define normal and peak service temperatures
  • Review cycling, dwell time, and adjacent heat sources
  • Connect the requirement to tool and process design
Connect requirements to DFM

Engineering resin portfolio10 material families

High-heat resin molding across 10 material families

These resin families represent established Infinity experience. Final selection should follow the part drawing, service environment, regulatory needs, supplier grade, reinforcement, and validation plan.

PPSHigh-performance

Polyphenylene sulfide

Considered where heat, chemical exposure, and dimensional demands must work together.

PPAHigh-temperature

High-performance polyamide

Balances elevated-temperature requirements with strength and dimensional stability.

PA 6Structural

Nylon 6

Evaluated for strength, wear performance, processability, and the application environment.

PA 6/6Structural

Nylon 6/6

Used when strength, wear, heat, and moisture effects require a connected review.

PBTDimensional

Polybutylene terephthalate

An engineering polyester considered for stable electrical, automotive, and industrial parts.

POMLow friction

Acetal

Considered for dimensional mechanisms, repeat motion, and precision component applications.

PCImpact focused

Polycarbonate

A versatile family for transparent, impact-resistant, and dimensionally controlled applications.

ABSBalanced utility

ABS

Connects appearance, toughness, processability, and repeatable molded detail.

PC/ABSPolymer blend

PC/ABS blend

Combines impact performance, dimensional stability, appearance, and practical processing.

TPEFlexible

Thermoplastic elastomer

Supports grip, sealing, cushioning, and molded geometry that requires elastic response.

Thermal production architectureMore than a barrel setting

High-heat resin molding depends on controlling the complete thermal system

Infinity processes engineering-grade thermoplastics with the machine, mold-temperature control, tooling, auxiliary equipment, and technical oversight aligned to material behavior.

PROCESS CORE Material behavior
Material condition Preparation and handling

Resin condition and lot identity enter the process plan before plasticizing begins.

Machine capability Torque and heater capacity

Equipment capability must support the material without turning heat into unnecessary residence time.

Mold condition Hot-oil temperature control

Controlled mold temperature supports fill, surface condition, crystallization behavior, and repeatability.

Tool architecture Flow, venting, and cooling

Gate, runner, vent, cavity, and temperature-control decisions must fit the selected material.

Cleanroom high-temperature capability

Infinity also identifies a cleanroom molding machine configured with a high-torque motor and high-output heaters for advanced engineering materials.

Explore cleanroom molding

Incoming material assuranceIdentity before production

FTIR verification on every incoming resin lot keeps material integrity visible

Technician evaluating black and amber engineering resin pellets beside an FTIR spectrometer
Incoming inspectionResin lot verification
MATERIAL PASSPORTLOT / VERIFY

Infinity’s documented incoming inspection process includes FTIR scanning on every resin lot to help confirm material identity before production use.

Receive
Lot identity enters the quality system
Verify
FTIR provides material-integrity evidence
Release
Approved material moves into production
Explore inspection capabilities

Engineer upstreamResin changes the rules

Engineering thermoplastics reshape part and mold decisions before steel is cut

A material designation is not a complete molding strategy. Grade, reinforcement, shrink behavior, flow, moisture sensitivity, geometry, and performance criteria must be reviewed as one system.

Part geometry

Wall transitions, ribs, bosses, and critical surfaces affect how the material fills and stabilizes

Tool strategy

Steel, gating, venting, cavity balance, and temperature control must suit the resin system

Process development

Scientific molding defines a repeatable window rather than relying on a single nominal setting

Validation evidence

Dimensional, visual, material, and process evidence confirm that the planned system can repeat

Controlled process windowFrom condition to release

Scientific molding creates a repeatable process window

Infinity combines all-electric molding, technical processing, automation, inspection, and validation to keep the approved material strategy connected through production.

  1. 01
    ConditionPrepare and identify the resin

    Material condition and lot status enter the production record.

  2. 02
    PlasticizeBuild a controlled melt

    Heat, screw action, torque, and residence time work together.

  3. 03
    Fill + holdMove material through the tool

    Flow and pressure are developed around part and gate geometry.

  4. 04
    StabilizeControl mold temperature

    The cavity environment supports repeatable part formation.

  5. 05
    ReleaseMeasure the result

    Inspection connects the molded part back to the approved window.

All-electric molding30 presses
Production range55–500 tons
Certified framework4 systemsQuality, medical, automotive, and environmental
Explore scientific molding & validation

Application-led performanceThree production environments

Engineering resin performance across automotive, industrial, and medical markets

Infinity serves automotive, industrial, consumer, and medical programs from two focused facilities on one Mount Vernon campus.

Automotive

Heat, fluids, electrical demands, and dimensional requirements converge in production components

Typical applications include housings, covers, connectors, impellers, tubes, fittings, gears, actuators, motor end caps, and other functional parts.

Explore automotive molding
Industrial & aftermarket

Durable mechanisms and fluid-handling parts benefit from material and geometry reviewed together

Engineering resins can support wear, dimensional, chemical, electrical, or temperature needs across varied industrial programs.

Explore industrial molding
Medical & healthcare

Advanced materials can enter a controlled cleanroom path when the program requires it

A specially configured cleanroom press extends high-temperature resin processing into Infinity’s medical manufacturing environment.

Explore medical manufacturing

Build the material briefStart with the operating reality

Define the engineering resin strategy

A useful starting package connects the part design to its environment, critical dimensions, performance expectations, volume, tooling status, and timing.

MATERIAL INPUTPROGRAM / START
  • Service environmentTemperature, chemicals, moisture, UV, or cleaning exposure
  • Mechanical requirementsLoad, impact, wear, motion, stiffness, and life expectations
  • Part and program dataCAD, drawing, resin preference, volume, timing, and current tool status