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Why is molded grating more corrosion resistant than Pultruded products of the same resin system?

April 26, 2017Corrosion grating molded products pultruded resin resistant system

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Why is molded grating more corrosion resistant than Pultruded products of the same resin system?

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Resin protects the glass fibers from corrosive chemical and molded grating has 65% resin whereas pultruded grating has only 30 – 35% resin. Secondly, molded grating is one-piece homogeneous construction whereas pultruded grating is assembled into panels. The corrosion barrier of the pultruded shapes are compromised when holes are drilled into components for panel assembly.