MOULDED GRATING PROCESS

Molded grating is manufactured by laying continuous glass fibres in the mould in the
direction of vertical and horizontal, and thurougly wetted out with resin, layer by
layer. When the weaving process is completed, the mould is heated to cure the panel.

After curing, the panel is ejected from the mould. The standard panel would have
meniscus (concave) top surface. Any process such as post applied grit could be bonded
after as a secondary operation.

This continuous process produces an integral, one piece panel, which offers excellent
corrosion resistance as well as bi-directional strength.

  PULTRUSION PROCESS

Pultrusion is a continuous process using fibre reinforcements with thermosetting
resin matrices.

Pre-selected reinforcement materials, such as fibreglass roving, mat, woven fabrics or
stitched fabric, are drawn through a resin bath in which all material is thorougly impregnated
with a liquid thermosetting resin. Typical resins include polyesters, vinyl esters and phenolics.

The wet-out fibre is formed to the desired geometric shape and pulled into a heated
steel die. Once inside the die, the resin cure is initiated by controlling precise
elevated temperature. The laminate solidifies in the exact cavity shape of the die, as
it is continuously pulled by the pultrusion machine. Most any constant cross-section
part can be pultruded.