Grp Frp Channel Steel Fiberglass Beams
Pultrusion technique
During the pultrusion process, the raw material are pulled through a heated steel forming die using a continuous pulling device. when the reinforcements are saturated with the resin mixture in the resin bath and the wetted reinforcement package is wrapped in a surfacing veil. the completed package then goes into premolding stage that roughly forms the package into the appropriate shape to enter the heated trimming die for curing. the trimming die is the exact shape of the final part desired. upon exiting the trimming die, the part is over 90% processing and solid. Cutting in accordance with requirements of the length, the entire process is completed.
FRP is an excellent insulation material, nonreflective. And it is not to interrupt transmission of microwaves, no rust, and it is safe to use long-term.
Good corrosion resistance can be resist water, gasoline, alcohol, electrolytic salt, acetic acid, hydrochloric acid, sodium and potassium compound s, urine, and asphalt corrosion. Also It can be for a variety of acid soil, and it has a good anti-aging properties. The surface has a layer of UV-resistant to protect, so that makes products with higher anti-aging properties.
Fiberglass signs pile impacts strongly without deformed. It is high tensile strength, flexural strength and impact toughness. Its gravity is between 1.9-2.0, and can be met the outdoor to use.
Tensile strength ≥160MPa
Flexural strength ≥190MPa
≥150MPa bending strength after immersion in water
Barcol hardness ≥38
Ring stiffness (5%) ≥50KPa
Heat distortion temperature ≥160 °C
Oxygen index of 26%
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