VESTODUR® X9426 is a medium viscosity, halogen-free, flame retardant polybutylene terephthalate (PBT) grade. Possesses good electrical and hydrolysis properties, good sliding friction behavior, high compressive strength, low coefficient of thermal expansion and low moisture absorption. Provides high thermal stability, high hardness, good strength, high dimensional stability, high flexibility, high limiting oxygen index (LOI), low smoke density and low toxicity smoke emission. Exhibits high stress crack-, chemical-, kink-, crush-, abrasion and creep resistance. Is suitable for processing by extrusion. Recommended for optical fiber jacketing, loose tubes and copper wire insulation for use in public construction projects.
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VESTODUR® X9426 properties
Flammability properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Flame rating (UL 94) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Limiting Oxygen Index (LOI) | 0.0 Visible After Login | Visible After Login | Visible After Login |
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Modulus of Elasticity | 0.0 Visible After Login | Visible After Login | Visible After Login |
VESTODUR® X9426 Processing Guidelines
Extrusion Processing Guidelines
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Drying Temperature | Visible After Login | Visible After Login | |
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| Drying Time (Circulating Air Oven) | Visible After Login | Visible After Login | |
| Drying Time (Desiccant Dryer) | Visible After Login | Visible After Login | |
| Moisture Content (Suggested) | Visible After Login | Visible After Login | |