Key principles.
Outdoor service
HALS (hindered amine), UV absorbers. Extend outdoor life 5-20×.
Heat stability
Prevent oxidative degradation during processing and service.
UL94 ratings
Bromine, phosphorus, aluminum hydroxide. Per UL94 V-2/V-1/V-0 rating needed.
Stiffness
15-50% glass loadings. 2-5× stiffness improvement.
Cost reduction
Talc, calcium carbonate. Cheaper, lower properties.
Internal/external
Improve flow, reduce friction. Critical for processing.
FAQ
Modify base plastic for specific application — UV stability, flame retardancy, stiffness, cost reduction.
Glass-filled 2-5× stiffer, harder, lower elongation. Easier to mold thin walls.
Standard ABS 1-2 year outdoor. UV-stabilized 5-15 year. Carbon-black 20+ year.
Bromine: highly effective but environmental concerns. Phosphorus: less effective but more sustainable.
Pigments (insoluble) or dyes (soluble). Pigments more lightfast. Choose per UV stability needs.
Glass fiber 30% loading raises cost ~50%. Premium additives (UV, flame) add $1-3/kg.
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