3B Fibreglass 399 Direct Rovings

3B Fiberglass 399 Direct Rovings consist of continuous filaments bonded into a single strand and wound onto a bobbin shape. A proprietary sizing applied on the fibers assures an excellent resin-to-glass bonding.Corrosion resistant 399 Direct Rovings made of Advantex® glassare specifically designed for pultrusion process and are compatible with thermosets resins. They are the materials of choice for the manufacturing of high quality profiles. 399 Direct Rovings made of Advantex® glass are also used in filament winding process under specific conditions; contact us for further assistance.

Reinforcement Material: Glass Fibers

Reinforcement Form: Roving

Compatible Polymers & Resins: Bismaleimides (BMI), Cyanate Esters, Epoxies (EP), Furans, Phenolic Resins, Polyamides, Polyesters, Polyether Ether Ketone (PEEK), Polyethylenes (PE), Polyimides (PI), Polyphenylene Sulfide (PPS), Polypropylenes (PP), Polysulfone (PSU), Polyurethanes (PU), Polyvinyl Chloride (PVC), Silicones, Vinyl Esters

Processing Methods: Filament Winding

Features: Corrosion Resistance, Corrosion Resistant, Improved Flexibility

Technical Data Sheet

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Identification & Functionality

Chemical Family
Reinforcement Form
Reinforcement Material
Composite Materials Functions

Features & Benefits

Product Highlights
  • Boron-free E-CR glass.
  • High thermal properties
  • Polyester, Vinylester & Epoxies compatible.
  • Low strand integrity.
  • Globally available
  • High corrosion resistance
  • High resistance to fire propagation, high insulation properties.
  • Maximum flexibility on workshops
  • High speed impregnation in pultrusion
  • Get flexibility in manufacturing the highest quality wherever you are

Applications & Uses

Composites End Use
Composites Processing Methods

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Tensile Modulus81-83GPaASTM D2343-08
Fibre's CLTE6 10-6 °K-1ASTM D696
Fibre's CLTE916°CSoftening (ASTM Point C338)
Filament diameter17 - 34µm
Linear density1200 - 9600tex (gr/km)
Tensile Strength2200-2400MPaASTM D2343-08
Fibre's Density2.62g/cm³

Packaging & Availability

Packaging
  • Bobbins are individually wrapped with a stretched plastic film for protection, improved handling and to allow optimum transfer from bobbin to bobbin. Nominal weight of C bobbins is 25 kg.
  • Two pallet configurations are available:- Bulk-Pack: standard packaging, consists of individual bobbins.- Creel-Pack: bobbins are connected together for continuous unwinding and no bobbins handling for operators.

Storage & Handling

Storage

Storage in a cool and dry warehouse into the original packaging is formally recommended. More precisely ideal storage conditions are a temperature between 15°C and 35°C and a relative humidity comprised between 35% and 75%.If these conditions are maintained, the glass fiber product should not undergo significant changes when stored for extended periods of time. It is also strongly recommended to condition it in the workshop for at least 24 hours before use to prevent condensation.For an optimal processing it is recommended to use the product in ambient conditions (20°C-23°C and a relative humidity of 60%-65%).