High-Temperature Resistant Injection Molded Parts

Heat resistant materials and injection molding solutions for plastic structural parts used in high temperature environments, solving high temperature deformation, strength loss and dimensional instability so that parts keep running reliably.

Excellent heat resistance
High strength
Stable dimensions
Anti-aging
01 Common Problems

Common problems of plastic parts in high temperature environments

In high temperature conditions, ordinary plastic parts easily deform, lose strength and age. This affects the reliability and service life of the finished product.

  • 1Do parts deform and lose dimensional stability at high temperature?
  • 2Does strength drop significantly after long-term high temperature use?
  • 3Do parts crack or lose performance in thermal cycling?
  • 4Does the material age too fast in high temperature environments?
  • 5How should heat resistant plastic materials and processes be selected?
Heat ageing and deflection are tested on every project
Heat verificationHeat ageing and deflection are tested on every project
Heat stabilised parts keep their properties
Strength retainedHeat stabilised parts keep their properties
Heat stabilisers and glass fibre reinforcement keep mechanical performance and dimensions stable at elevated temperature. Heat stabilisers and glass fibre reinforcement keep mechanical performance and dimensions stable at elevated temperature.
02 Material Solution

High temperature resistant material combinations for different needs

We select materials for the temperature and load of each application, providing heat resistant engineering plastics and modified materials with excellent thermal stability.

PA66 PA66 GF30 PA66 GF40 High temperature modified material Other high temperature engineering plastics
  • Excellent heat resistance at continuous operating temperature
  • High strength and rigidity at elevated temperature
  • Stable dimensions under thermal load
  • Anti-aging formulation for long service life
High-Temperature Resistant Injection Molded Parts material options
03 Injection Process

Precision injection molding and stable process for high temperature quality

Through optimised injection parameters, mould design and cooling control we ensure that parts keep stable dimensions, accuracy and mechanical performance in high temperature service.

Mould design optimisation
Injection parameter adjustment
Temperature control system
Tooling validation & verification
Product inspection
High-Temperature Resistant Injection Molded Parts injection molding production
04 Advantages & Applications

Widely used in industries with high temperature operating conditions

High temperature resistant parts are widely used in automotive, new energy, electronics, electrical and industrial equipment applications.

Core advantages

Heat resistance

Stable performance up to 220°C

High strength & rigidity

Retained at elevated temperature

Dimensional stability

Low thermal deformation

Anti-aging

Long service life at high temperature

Typical applications

Automotive engine peripherals
New energy / EV & charging
Electronic & electrical
Industrial equipment
Motor & fan components
Heat resistant structures
05 Case Study

Reliable performance at high temperature that raises product competitiveness

Case study: automotive engine peripheral bracket

Automotive engine peripheral bracket
Case: Automotive engine peripheral bracket
Customer problem: The bracket deformed at high temperature and could not deliver sufficient strength in long-term service.
Solution: PA66 GF40 with a heat stabilised formulation, together with optimised tooling and injection process parameters.
Result: The bracket runs at 180°C for long periods with stable dimensions and reliable mechanical performance.
-40 – 220°CHeat resistance
>80 MPaTensile strength
>5 yearsService life
06 Verification

High temperature and mechanical verification before shipment

Heat related and mechanical performance are verified on every project so that the part meets the requirement of its working temperature.

Heat ageing test Heat deflection temperature test Mechanical property test Dimensional inspection Thermal cycling verification Batch inspection record

Does your plastic part have high temperature requirements?

Send your drawings, samples or performance requirements — our engineers will recommend the most suitable material and injection molding solution for you.

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