SAN Styrene-Acrylonitrile: Clear Rigid Engineering Plastic for Household Products
Published: 2026-06-09
SAN offers better chemical resistance and clarity than ABS and better thermal resistance than polystyrene. Used for kitchenware, cosmetics packaging, and appliance components.Propprose Processability Score (PPS): 6/10 (Moderate) — Based on melt...
Technical Properties
| Density | 1.08 g/cm³ |
|---|---|
| Tensile Strength | 75 MPa |
| Melting Point | N/A (Amorphous) |
| Shrinkage Rate | 0.4-0.6% |
| Flexural Modulus | 3.8 GPa |
| Hdt | 100 °C at 1.82 MPa |
| Continuous Service Temp | 85 °C |
Engineering Tool: Shrinkage & Cost Estimator
Calculate part weight, mold cavity dimensions accounting for shrinkage, and material cost — all locally in your browser.
Equivalents & Cross-References
| Equivalent / Alternate | Action |
|---|---|
| INEOS Luran | |
| Chi Mei Kibisan | |
| LG Chem SAN |
Frequently Asked Questions
SAN vs ABS — what's the difference?
SAN has better transparency, chemical resistance, and surface hardness than ABS. ABS has far better impact resistance (SAN is relatively brittle) and is easier to process. SAN is the choice when clarity and chemical resistance matter; ABS when impact resistance is the priority.
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References & Industry Standards
- ASTM International. Standard Specifications for Engineering Plastics & Thermoplastics. astm.org
- UL Prospector. Plastics & Elastomers Material Database. ulprospector.com
- MatWeb. Material Property Data for Engineering Thermoplastics. matweb.com
- ISO 1043. Plastics — Symbols and Abbreviated Terms. iso.org