Molded FRP vs Pultruded FRP

Both are fibreglass grating, but made differently — moulded as a one-piece panel, or pultruded with high-glass bearing bars. Load and corrosion needs decide which.

Factor	Molded FRP	Pultruded FRP
Manufacture	Moulded one-piece bi-directional panel	Pultruded bearing bars assembled with cross rods
Strength direction	Bi-directional (strong both ways)	Uni-directional — very strong along the bar
Load / span	Good	Highest FRP load, long spans
Corrosion resistance	Excellent (more resin-rich surface)	Excellent
Best use	Chemical, water, washdown, walkways	Long spans, vehicle decks, pipe racks, structures

The verdict

Choose moulded FRP for maximum corrosion resistance and general walkways in chemical and water plants. Choose pultruded FRP when you need higher loads or longer spans — vehicle decks, bridges and structural framing.

FAQ

Which FRP grating is stronger, molded or pultruded?

Pultruded FRP carries higher loads and longer spans thanks to its high-glass bearing bars. Moulded FRP is bi-directional and excels at corrosion resistance over moderate spans.

Is molded FRP more corrosion resistant than pultruded?

Both resist corrosion well; moulded panels have a slightly more resin-rich surface, which can help in very aggressive chemical exposure.

Molded FRP grating · Pultruded FRP grating · All comparisons

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