Molded Grating Process
grating is manufactured by our skilled worker through manual hand lay-up
in an open, heated steel mold. Continuous fiberglass roving is laid in
the mold in alternating layers and thoroughly wetted out with vinyl ester
or polyester resin.
This continuous process constructs a one piece panel that offers excellent
corrosion resistance and bidirectional strength in both bearing and cross
bars. This process involves constant monitoring of temperature control
and curing cycle.
When the panel naturally cured, the surface shall have a concave surface
for slip resistance. A standard grit surface is made through a secondary
operation by bonding grit to the grating panel. If the grating is to have
embedded grit, the grit shall be applied during the curing cycle before
the panel ejected from the mold.