3B Direct Rovings consist of continuous glass filaments bonded into a single strand and wound onto a bobbin shape. A proprietary sizing applied on the fibres assures excellent resin-to-glass bonding. Corrosion-resistant R25H Direct Rovings made of Advantex® glass are specifically designed for filament winding processes (continuous or discontinuous) for the manufacturing of composite pipes. The silane sizing of R25H is designed for excellent adhesion to thermoset resins and is also drinking water contact approved. Also, combination of high temperature resistance of E-CR Advantex® glass and easy texturisation of R25H Direct Rovings make them ideal for muffler filling. R25H Direct Rovings made of Advantex® glass are also used in pultrusion or weaving-knitting processes under specific conditions; contact us for further assistance.

FEATURES AND BENEFITS
Boron-free E-CR glass

• -High corrosion resistance, suitable for manufacturing of composite sewer pipes.

Polyester, Vinylester and Epoxies compatible

• -Maximum flexibility on workshops

Medium strand integrity

• -Good impregnation in high speed filament winding processes

Potable water contact approved

• -Suitable for manufacturing of composite drinking water pipes

High thermal properties

• -High heat resistance, suitable for muffler filling applications

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.