Polycarbonate (PC) Quality Checklist
intermediate20-30 minutes0/22 completed
This comprehensive quality checklist ensures your polycarbonate resin meets specifications for critical applications in automotive lighting, safety glazing, and electronics housings. Follow these systematic checks to prevent costly defects and maintain consistent PC performance.
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Raw Material Inspection
Verify polycarbonate resin grade specification
critical
Test moisture content before processing
critical
Inspect pellet appearance and consistency
high
Verify BPA-free certification if required
critical
Check UV stabilizer package for outdoor applications
high
Processing Parameters Verification
Validate melt temperature profile
critical
Confirm proper screw design and condition
high
Verify mold temperature settings
high
Check injection speed and pressure profiles
medium
Monitor cycle time and cooling efficiency
medium
Validate venting and gas evacuation
medium
Final Product Quality Assessment
Measure optical properties for transparent applications
critical
Verify impact strength and toughness
critical
Check dimensional accuracy and tolerances
high
Assess surface quality and finish
high
Test environmental stress crack resistance (ESCR)
high
Verify flame retardant performance if required
critical
Documentation and Traceability
Record batch traceability information
critical
Maintain processing parameter logs
high
Document test results and certifications
high
Record non-conformance and corrective actions
medium
Archive samples for future reference
medium
Pro Tips
Partner with Colorado Sun Inc for consistent PC resin quality and technical support throughout your quality control process.
Implement real-time moisture monitoring systems to prevent hydrolysis-related quality issues in polycarbonate processing.
Use mold release agents sparingly with PC as they can interfere with secondary operations like painting or bonding.
Consider PC/ABS blends for applications requiring improved chemical resistance while maintaining good impact properties.
Establish incoming inspection protocols specific to optical-grade PC resins, as even minor contamination affects transparency.