Direct Rovings consist of continuous filaments bonded into a single strand and wound onto a bobbin shape. 3B’s Direct Rovings are available in both corrosion resistant E-glass and R-glass formulations.

3B’s Direct Rovings are designed for excellent processability in composites technologies like:

  • filament winding
  • pultrusion
  • knitting & weaving
  • texturisation
  • Long Fibre Technologies (LFT)

Our high performance R-glass, HiPer-tex®, is designed for high load bearings thanks to its high stiffness and strength. HiPer-tex® also displays an improved thermal resistance over standard E type glass, and is corrosion as well as acid resistant.

Depending on the technology they are designed for, 3B’s Direct Rovings are  compatible with Thermoplastic or Thermoset resins as presented in our product portfolio below. 

3B E-CR glass for Thermosets

Resin Product TP/TS Features Process Length/Diameter ratio Ø
Polyester, Vinylester, Epoxy 111A Thermosets High corrosion resistance, Water contact Weaving, Filament winding ø13µm
Multi-Compatible 399 Thermosets Pultrusion
Multi-Compatible R25H Thermosets Filament winding, Texturisation, Non-crimp fabrics, Muffler filling
Polyester, Vinylester, Epoxy, Polyurethane SE 1010 Thermosets High corrosion resistance, Easy unwinding, Low fuzz generation, Good impregnation with high-speed processing Pultrusion, Filament winding, Weaving 17/24
Unsaturated polyester, Epoxy compatible SE 1043 Thermosets Filament winding, Pultrusion, Weaving
Epoxy specific SE 2020 Thermosets Weaving, Non-crimp fabrics, Prepregs, Filament winding, Pultrusion
Polyester, Vinylester, Epoxy SE 3030 Thermosets Weaving, Non-crimp fabrics, Prepregs, Filament winding, Pultrusion

3B E-CR glass for Thermoplastics

Resin Product TP/TS Features Process Length/Diameter ratio Ø
PP, PE SE 4220 Thermoplastics Internal pull, Food contact (EU & USA) Internal Pull roving for LFTP Processes ø17µm
PP, PE SE 4220 EX Thermoplastics External pull, Food contact (EU & USA) External Pull roving for LFTP Processes ø17µm

HiPer-tex® glass for Thermosets

Resin Product TP/TS Features Process Length/Diameter ratio Ø
Epoxy specific W 2020 Thermosets Higher modulus Weaving, Non-crimp fabrics, Prepregs, Filament winding, Pultrusion
Polyester, Vinylester, Epoxy W 3030 Thermosets Higher modulus Weaving, Non-crimp fabrics, Prepregs, Filament winding, Pultrusion

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