Modifying plastic properties with additives
| Additive | Effect |
|---|---|
| Glass Fiber (10-40%) | Strength, stiffness, heat resistance |
| Carbon Fiber | Highest strength, conductive |
| Flame Retardant | Fire resistance (UL V-0, V-1, V-2) |
| UV Stabilizer | Outdoor weather resistance |
| Lubricant | Reduces friction, improves mold release |
| Talc/Calcium Carbonate | Reduces cost, improves stiffness |
Additives affect mold design: glass-filled requires harder mold steel; flame retardants can be corrosive; UV stabilizers increase material cost 5-15%.