What is the composition of the FRP rebar? The material is a composite of cross-linking polymer resin matrix reinforced by continuous glass filaments in a Reinforcement to Matrix Ratio of 70/30 percent by weight. Fiberglass roving is drawn into a tank of thermosetting plastic resin where saturation takes place. The roving is then drawn through an orifice equal in diameter to the glass-to-resin ratio of 70/30. A spiral winding is applied and the material is cured continuously, producing a void-free, corrosion-resistant matrix that bonds and protects the glass fibers. Series E Rebar. 30% lsophthalic Resin Series C Rebar: 30% Vinylester Resin What type of resin is used? lsophthalic Resin and Vinylester Resin. Does the FRP Rebar have a fire rating? No. We have a resin rated at 500°F Heat Distortion Temperature. What makes pultruded products so strong? Pultrusion is a machine method of producing continuous composite profiles with high strength and close dimensional tolerances. Glass and synthetic filaments saturated in polymer resins are pulled through steel dies that shape the profiles and control the reinforcement-to-matrix ratio. Physical and chemical properties are (within limits) engineered to the application by resin selection and directional reinforcement combinations.
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