CR 3037

About this product

Choppable Roving for Unsaturated Polyester and Vinylester

3B’s Choppable Roving CR 3037 is made out of E-CR glass. It consists of low tex strands assembled together and wound onto a bobbin shape without mechanical twist, free from statics. Choppable Roving CR 3037 is silane sized and is compatible with resin systems such as unsaturated polyesters and vinylesters. CR 3037 is the input of choice for the manufacturing of panels, stitched mat fabrics or pipe relining (cured-in-place pipe). It is also used as an input in the hoop of filament winded pipes or pipes produced by centrifugal casting. 3B Choppable Roving CR 3037 conforms to BS 14020 and IS 11320.

FEATURES - Boron free E-CR glass - Easy unwinding and excellent chopping - Excellent dispersion and even distribution - Good splitting efficiency and low fuzz formation - Good wet-out and impregnation

BENEFITS - Environment-friendly, high corrosion resistance - No interruption while processing, high productivity - Good fabric or part coverage - Minimal damage to fibre while processing, hence high mechanical properties - High laminate properties

PACKAGING Bobbins are individually tack wrapped for protection, improved handling and to allow optimum transfer from bobbin to bobbin. Nominal weight of bobbin is around 17kg. A pallet of size 92cm x 110cm contains 48 bobbins and 110cm x 110cm contains 64 bobbins. Bobbins are stretch wrapped with plastic film for protection. Two pallet configurations are available: • Bulk-pack®: standard packaging, consists of individual bobbins • Creel-pack®: bobbins are connected together for continuous unwinding and no bobbin handling by operators

STORAGE Material must be stored in its original packaging without direct exposure to sun and/or water. If these conditions are maintained, the glass fibre product should not undergo significant changes when stored for extended periods of time. It is also strongly recommended to condition it in the workshop for at least 24 hours before use to prevent condensation. For an optimal processing we recommend to use the product in ambient conditions (20°C-30°C and a relative humidity of 60%-65%).

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Choppable roving Choppable Roving 3B’s Choppable Rovings consist of multiple continuous strands of smaller tex made from 3B E-CR glass wound onto a bobbin shape without mechanical twist in an off-line process. They are free from static electricity generation. Choppable Rovings are silane sized. 3B E-CR glass is a boron-free E-CR glass that shows significantly improved corrosion resistance properties over standard E-glass. 3B E-CR glass complies with ASTM D578 and ISO 2078 standards. Our Choppable Rovings are compatible with Thermoset resins and are used for multiple applications such as Sheet Moulding Compound (SMC), head liners for automotive, fabrics for general purpose, pipe rehabilitation, etc.