3B Direct Rovings consist of continuous Advantex® glass filaments bonded into a single strand and wound into a bobbin shape. A proprietary sizing applied on the fibres assures an excellent resin-to-glass bonding. SE4740 Direct Roving's sizing provides excellent adhesion to Acrylic Thermoplastic resins as revealed by high shear strength as well as high inter-laminar fracture toughness energy. SE4740 Direct Rovings are specifically designed for production of Woven Rovings and Non Crimped Fabrics. These fabrics can then be used as inputs for T-RTM or infusion technologies. It is recommended not to use SE4740 Direct Rovings in systems other than Acrylic Thermoplastic resins.

FEATURES AND BENEFITS
Boron-free E-CR glass

• -High corrosion resistance

Medium to high strand integrity

• -High productivity and high quality parts in Woven Rovings and Non Crimped Fabrics productions

Compatibility with Acrylic Thermoplastic resins

• -Optimum transverse tensile strength

• -Optimum inter-laminar shear strength

• -Designed for Structural Composites

Globally available

• -Get flexibility in manufacturing the highest quality wherever you are

Advantex® glass is a boron-free glass and presents significantly improved corrosion resistance across a wide range of aggressive environments. Advantex® glass is an E-CR glass in accordance with ASTM D578 and ISO 2078. This translates into important benefits for end-users over traditional E glass: longer service life, larger safety coefficients for the same design, and material savings. Traditional E-glass includes boron and often contains added fluorides. By using new manufacturing technology to eliminate these components from the glass composition, Advantex® glass has become a benchmark for integrated pollution prevention and the highest energy efficiency, all in an optimized process. 3B measures its efforts and works continually to minimize its impact on the environment and to set new standards within the global fibreglass industry. This is our commitment.