Molded Fiberglass Molded Products
620/ Assembled Roving for High Strength Class-A SMC
Product description
620 is a premium grade class-A SMC roving coated with a silane-based sizing, featuring low fuzz, minimal static electricity, excellent choppability, and dispersibility and low static electricity, compatible with various resin systems such as UP and VE, it can be used to produce a wide range of sheet molding compound (SMC) molded composite products, including electrical components, septic tanks, integrated bathroom units, water tanks, ceilings, artificial marble countertops, and large structural parts (such as table tennis table tops and basketball backboards).
| Glass type | ECR |
| Sizing type | Silane |
| Typical filament diameter(㎛) | 13 |
| Typical linear density(tex) | 2400/4800 |
| Example | ECR13-2400-620 |
Technical Parameters
| Item | Linear density variation | Moisture content | Combustible content | Stiffness |
| Unit | ㎛ | % | % | (mm) |
| Test method | ISO 1889 | ISO 3344 | ISO 1887 | ISO 3341 |
| Standard range | ±5 | ≤0.10 | 1.20±0.20 | 150±20 |
Product features
Instructions
Optimal use within 6 months. Store in original packaging until use. Handle with care to prevent fuzzing or damage. Before use, acclimate the roving to ambient temperature and humidity, and maintain operating temperatures between 5°C and 30°C. Ensure even tension control during operation. Regularly maintain the blade and rubber rollers
Packaging
Each bobbin is packed in PE film or a PVC bag, then placed on pallets or in cartons. A pallet holds 48 or 64 bobbins (14-20kg each), with customizable weight. Stacking limit: 2 layers for pallets, 5 for cartons. Packaging can be tailored to user needs.
Storage
Stored in a dry, cool, well-ventilated area (5°C–35°C, 35%-65% RH). Keep packaging sealed when not in use to prevent moisture. For safety and product integrity, stack pallets no higher than three layers—handle upper pallets with care when stacking. Custom packaging available upon request.
