bg1

Open Molded Fiberglass Products

Glass Fiber Products For Open Mold Forming
Home Open molded fiberglass products

270/ Assembled Roving for Spray-up

270

Product description

270 is designed for spray-up molding processes. It consists of continuous untwisted roving strands, compatible with mechanical chopping spray equipment. The product enables rapid chopping and mixing with resin for efficient spray-up applications. Suitable for spray-up and centrifugal casting processes, it is ideal for manufacturing products such as boats, bathroom fixtures, storage tanks, and automotive components.

Glass typeECR
Sizing typeSilane
Typical filament diameter(㎛)13
Typical linear density(tex)2400
ExampleECR13-2400-270

Technical Parameters

ItemLinear density variationMoisture contentCombustible contentStiffness
Unit㎛%%(mm)
Test methodISO 1889ISO 3344ISO 1887ISO 3341
Standard range2400±120≤0.101.0±0.15130±20
14e1201910b9f554d778cc0f08575126
7135925de19fc0b9d231e364dc47e0be
4546a19767fda248414b1e83b599b1ad

Product features

Group 274 (3)
Excellent Chopping & Dispersion: optimal stiffness ensures smooth cutting and no clumping. Disperses rapidly into individual filaments or small bundles under high-pressure airflow, achieving a high degree of fiber separation.
Group 274 (4)
Fast Resin Wet-Out: sizing agent offers excellent resin compatibility,
enabling rapid wet-out
Group 274 (5)
Excellent Mold Conformity & Processability: Lays flat with low static charge. Adheres to vertical surfaces without spring-back during spray-up. Easy to roll out for de-airing. Suitable for high-speed manual or
robotic spraying.
Group 274 (6)
Stable Mechanical Properties: Retains high strength and modulus of glass fiber. Ensures uniform longitudinal and transverse strength in finished products. Provides excellent impact resistance, crack resistance, and aging resistance.
Group 274 (7)
Wide Compatibility: works with major thermosetting resins and suits various spray equipment and
molding applications.

Instructions

Best use within 6 months; keep in original packaging until use. Avoid abrasion or damage during handling. It is recommended to condition the yarn to ambient temperature and humidity before use, and maintain operating temperature between 5°C and 30°C. Ensure tension is controlled and uniform during processing.

Packaging

Each bobbin is packed in PE film, then placed on pallets or in cartons. A pallet holds 48 or 64 bobbins (17-17.6kg 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.

抠图 (2)