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308H direct roving is produced with the E6 glass formulation and coated with a silane-based sizing composition.It is specially designed for reinforcing epoxy resin and suitable for both amine and anhydride curing systems.
308H sizing composition gives strong resin-to-glass bonding,which results in excellent mechanical and anti-fatigue properties of the end composites. The product is designed for the high tension winding process.Typical applications include small bore sucker rods,high pressure pipes,storage tanks and pressure vessels.
Product Features
- Good abrasion resistance underhigh tensions and smooth run-out
- High retention rate in boilingwater
- Excellent mechanicalproperties and fatigue resistance
- Excellent mechanical properties
- Good acid corrosion resistance
Specification
| Glasstype | E6 | ||
| Sizingtype | Silane | ||
| Typicalfilamentdiameter(μm) | 17 | 21 | 24 |
| Typicallineardensity(tex) | 600/1100 1200/2400 | 2000 | 2400 4800 |
| Example | E6DR17-2400-308H | ||
Technical Parameters
| Item | Linear density variation | Moisture content | Sizing content | Breakage strength |
| Unit | % | % | % | N/tex |
| Test menthod | ISO1889 | ISO3344 | ISO1887 | ISO 3341 |
| Standard range | ±5(<600 tex) ±4(≥600 tex) | ≤0.07 | 0.55±0.15 | ≥0.40 |
Mechanical Properties
| Mechanical properties | Unit | Value | Resir | Test menthod |
| Tensile strengtt | MPa (Ksi) | 2675.0 (388.0) | Amine/DER331 | ASTM D2343 |
| Tensile modulus | GPa (Msi | 82.2 (11.9) | Amine/DER331 | ASTM D2343 |
| Shear strength | MPa (Ksi) | 74.0 (10.7) | Amine/DER331 | ASTM D2344 |
| Strength retention(72 hr boiling) | % | >96 | Amine/DER331 | / |
Instructions
- The product is best used within 12 months after production, and should be kept in the original package before use.
- Care should be taken when using the product to prevent it from being scratched or damaged.
- The temperature and humidity of the product should be conditioned to be close or equal to the ambient temperature and humidity before use, and the ambient temperature and humidity should be properly controlled during the use.
- The cutter rollers and rubber rollers should be maintained regularly
Packaging
For detailed package size information, please download the product manual to view!
Storage
Unless otherwise specified, the fiberglass products should be stored in a dry,cool and moisture-proof area.The best temperature and humidity should be maintained at -10℃~35℃ and ≤80% respectively. To ensure safety and avoid damage to the product, the pallets should be stacked not more than three layers high. When the pallets are stacked in two or three layers, special care should be taken to correctly and smoothly move the upper pallet.