3B Direct Rovings consist of continuous filaments bonded into a single strand. They are produced by pulling glass directly from the bushing and direct winding it into a cylindrical bobbin. A proprietary sizing system ensures an excellent resin-to-glass binding through the uniform distribution at the surface of the glass. SE 4220 Direct Roving is specifically designed for reinforcing PP resins. It is suitable for various LFT processes (Pellets, D-LFT, ...). The product is designed for providing an optimal balance of bundle strength and fibre wetting for easy processing and minimum fuzz/dusts at process contact points. The coating is also tailored for excellent bundle spread ability, which is of prime importance in PP pultrusion or modified wire coating processes. SE 4220 Direct Roving runs out from the inside of the package.

FEATURES AND BENEFITS

Excellent adhesion to polypropylene matrix

• -Superior mechanical performances

Excellent impregnation

• -Low unwinding tension required

Easy processing

• -Low fuzz generation for less clean up and improved process efficiencies

• -Excellent ability for continuous unwinding through Creel Pack type packaging

• -Very good dispersion in the final PP parts/pellets

• -Superior pelletization quality

Multi-process compatible

• -Suitable for all the LFT processes

Advantex® glass has been formulated to be a boron-free E-glass and to possess significantly improved corrosion resistance across a wide range of aggressive environments. Advantex® glass is both an E-CR glass and an E-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 by establishing environmental footprint diagrams that compare traditional E-glass production with an Advantex® manufacturing platform. 3B is continually working to minimize its impact on the environment and to set new standards within the global fibreglass industry. This is our commitment.