Direct roving is a yarn of fiberglass filaments that is bonded in one strand and directly would on a bobbin without a twist.
Direct roving is made of E-type glass with maximum alkali content of <1.0 %. A thread usually consists of 1200 to 2400 endless fibers. Glass roving is a raw fiberglass material with a wide range of use. Direct roving is suitable for use in various textile technologies, filament winding, weaving, texturizing, pultrusion, multi-axial weaving, and others.
Key properties of direct roving are:
Good abrasion resistance, high tensile strength, good warping, and weaving properties, ease to impregnate.
(E-Glass 600º C)
- Moisture content: < 0.15%.
- L.O.I.: 0.35 – 0.8%.
- Direct roving is manufactured in the shape of cylindrical bobbins with unwinding.
- Dimensions of bobbins: height – 255±5 mm, diameter – 280±5 mm.
- The bobbins are individually wrapped in a stretch film.
- Each bobbin block is wrapped by machine shrink foil and transported on a pallet.
Designation: e.g. EC14-300 500
EC – Type of glass (E-glass),
14 – Filament diameter, µm,
300 – Linear density, tex (weight of 1000m in grams),
500 – Sizing.