FRP Heavy-Duty Grating — High-Capacity Molded Panel

Wheel loads that would crack standard grating. A loaded forklift puts thousands of pounds onto a contact patch the size of a dinner plate. Standard 25 mm grating deflects visibly under that kind of point load—and eventually fractures at the resin‑rich intersections. Heavy‑duty panels use bearing bars from 50 mm up to 75 mm deep, spreading the stress through a taller section that stays well within its elastic range.

Load ratings without the steel weight penalty. These panels are commonly specified for heavy vehicle traffic, with load performance varying according to span length, bearing bar spacing, and overall panel configuration. Yet the panel weight is roughly one‑third of an equivalent steel grating—typically 45–70 kg/m²—which matters when the grating sits over a sump or trench where lifting gear access is limited.

Corrosion resistance that handles what the vehicles drag in. Chemical plant vehicle zones see road salts, hydraulic oil drips, battery acid splashes, and whatever the tyres pick up in the process area. Vinyl ester resin throughout the panel generally resists this mixed chemical assault, top and bottom. Corrosion resistance is commonly verified under ASTM D543.

Grit surface that works when wet and oily. The molded‑in silica grit top provides slip resistance even under a film of oil or chemical residue. For a loading bay or truck wash station, that’s not optional—it’s the difference between a safe crossing and a reportable incident.

Common installations include chemical plant vehicle access ways, shipyard loading docks, truck wash station decks, fire engine access roads over bunds, and waste treatment plant tipping areas. Each of these demands structural capacity that standard pedestrian grating was not designed to provide.

Standard mesh size is 38 mm × 38 mm for bidirectional load distribution. Panel thickness typically ranges from 50 mm to 75 mm. Resin options include isophthalic polyester as standard, with vinyl ester available for mixed chemical and hydrocarbon exposure. Maximum continuous service temperature is typically 80°C for polyester and 100°C for vinyl ester, with short‑term excursions acceptable. Surface finish is molded‑in grit top as standard, providing oil‑resistant grip.

Heavy‑duty grating is part of the WayTong FRP Grating range, which also includes standard molded, pultruded, covered, and phenolic grating options. For complete mechanical and corrosion performance data, see the ASTM Standards Summary.