McNICHOLS® Quality Grating - Pultruded Products

Pultruded Grating: Features
· Corrosion resistant
· 1/3 weight of steel
· Skid resistant
· Fire retardant
· Superior strength
· Easy fabrication
· Low maintenance
· Low thermal conductivity
· High load capacity
· Resistant to chipping and cracking

How is Pultruded Fiberglass Grating Made?

Pultruded Fiberglass Gratings are a composite of fiberglass reinforcements (fibers and mat) and a thermosetting resin system produced by the pultrusion process. The bearing bars use both longitudinal (glass roving) and multidirectional (glass mat) reinforcements, as well as a synthetic surfacing veil, to provide strength and excellent corrosion resistance. The unique pultruded system consists of two continuous, pultruded spacer bars and a center core wedge. The spacers are notched at each bearing bar so the bars are both mechanically locked and chemically bonded to the web of each bearing bar. This separates and affixes bearing bars firmly in position and distributes concentrated loads to adjacent bars. The fibrous laminate is formed into a geometric shape (T or I) and pulled through a heated steel die. The laminate solidifies into the exact shape of the die cavity as it is being continuously pulled by the pultrusion machine.