E-glass Direct Roving 1200 tex (Pultrusion-sized)
Key Features
- Fast wet-out (<5 s) for high-glass-fraction pultrusion
- Tex CV ≤3% — uniform profile cross-section
- Heat-resistant sizing — no decomposition at 130–180°C die cure
- Compatible with UPR, VE, PU, and epoxy pultrusion systems
- Low fuzz at high line speed — reduces die scoring and downtime
E-glass Direct Roving 1200 tex (pultrusion-sized) is a single-end continuous glass fiber roving with a low-viscosity sizing formulated specifically for fast wet-out in pultrusion resin baths. At 1200 tex (g/km) with filament diameter 13–17 μm, the roving runs through pultrusion dies at line speeds of 0.5–1.5 m/min without dry spots or interlaminar voids in the cured profile. Tex CV ≤3% delivers uniform fiber volume fraction across the profile cross-section.
The pultrusion-grade sizing has lower film thickness than general-purpose silane sizings, so the resin bath wet-out time drops to under 5 seconds even for high-glass-fraction (65–75% by weight) pultrusion designs. The sizing is compatible with thermosetting pultrusion systems — unsaturated polyester, vinyl ester, polyurethane, and epoxy — and is engineered to resist heat decomposition during the die cure at 130–180°C. Moisture content is held to ≤0.1% to prevent steam-void defects under die pressure.
Specifications
| Parameter | Value |
|---|---|
| Tex CV | ≤3% |
| Package | 15–20 kg cylindrical doff |
| Sizing Type | Pultrusion-sized, low viscosity, fast wet-out |
| Linear Density | 1200 tex (±5%) |
| Moisture Content | ≤0.1% |
| Filament Diameter | 13–17 μm |
| Ignition Loss (LOI) | 0.55–0.85% |
| Resin Compatibility | UPR, VE, PU, epoxy |
| Wet-out Time (UPR, 25°C) | ≤5 s |
| Tensile Strength (single filament) | ≥3400 MPa |
Applications
FAQ
Pultrusion pulls dry roving through a resin bath in 2–8 seconds — far less wet-out time than infusion (minutes) or filament winding (10–30 s in bath). General-purpose sizings designed for winding form a thicker film that slows resin penetration into the filament bundle, causing dry spots and inter-laminar voids in the pultruded profile. Pultrusion-specific sizings use lower film thickness and a sizing chemistry tuned for the resin system, dropping wet-out time below 5 seconds and enabling 65–75% glass fractions without defects.
Direct Contact
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