Oil & Gas FRP Grating
Oil & gas FRP grating replaces steel platforms, walkways and grating that corrode in salt spray, sour service and chemical exposure. FRP Grating Master supplies molded and pultruded fiberglass grating for offshore decks, pipe-rack walkways, drill floors, stairs and trench covers.
Oil and gas FRP grating is specified on offshore platforms, onshore drill pads, refineries, petrochemical units and coastal jetties where carbon steel grating rusts, galvanized steel sheds its zinc and aluminum suffers galvanic and chemical attack. FRP is non-sparking and non-conductive, which removes ignition and earthing concerns in hazardous areas, and it carries pedestrian and light vehicle loads over long spans without the weight that drives offshore deck loading limits.
Vinyl ester is the standard resin for sour service, salt spray and chemical splash; phenolic is selected where fire performance is critical, offering low smoke and flame spread. Grit-top surfaces keep foot traffic safe on wet, oily decks, and mini-mesh or covered panels stop tools falling through. Panels are fabricated to the platform drawing with penetrations for pipe supports and handrails, fixed with SS316 clips — no welding and no hot work in the hazardous zone. Selection should be checked against your project fire and electrical area classification.
Oil & Gas FRP Grating — Specifications
| Parameter | Molded Grating | Pultruded Grating |
|---|---|---|
| Panel thickness | 30 / 38 / 50 mm | 50 / 75 / 100 mm (I-bar) |
| Mesh / bar spacing | 38×38 / 19×19 mm | 38×38 mm |
| Standard panel size | 1220×3660 mm | 1220×3660 / 6000 mm |
| Anti-slip surface | Grit-top / Covered / Mini-mesh | Grit-top |
| Resin system | Vinyl Ester / Phenolic | Vinyl Ester / Phenolic |
| Fire performance | Typ. ASTM E-84 Class B (vinyl ester) / Class A (phenolic) | Typ. ASTM E-84 Class A (phenolic) |
Typical, indicative ranges — send your actual span, load and environment for confirmation.
Resin & Material Selection
| Resin | Role | Best Environment | Fire Rating |
|---|---|---|---|
| Vinyl ester | Standard | Offshore, salt spray, sour service, chemical splash | ASTM E-84 Class B |
| Phenolic | Fire-critical | Escape routes, module interiors, low-smoke zones | ASTM E-84 Class A |
| Isophthalic polyester | Economy | Non-hazardous coastal walkways, drainage | ASTM E-84 Class B |
Offshore and sour service typically specify vinyl ester. Where fire and low-smoke performance drives the specification (escape routes, enclosed modules), phenolic resin is the choice. All ratings are indicative and must be confirmed against your area classification and project standards such as NAAMM MBG-01.
Applications and Project Experience
Offshore platform decks and walkways: pultruded I-bar decks over long spans, non-sparking and immune to salt spray; see marine FRP grating.
Pipe-rack access and drill floors: molded 38–50 mm vinyl ester panels carrying maintenance foot traffic and light tool loads around process pipework.
Refinery and petrochemical units: corrosion-proof stair treads and trench covers in acid, caustic and hydrocarbon service.
Coastal jetties and berths: grit-top access panels that do not rust-stain the concrete berth and need no repainting.
Span and Support Spacing
Recommended maximum support spacing (deflection-limited, typical indicative values):
| Thickness | Type | Max Support Spacing | Typical Duty |
|---|---|---|---|
| 30 mm | Molded | 600 mm | General walkways |
| 38 mm | Molded | 750 mm | Walkways + light maintenance |
| 50 mm | Molded | 900 mm | Heavy pedestrian, light vehicle |
| 50–100 mm | Pultruded I-bar | 1200 – 1800 mm | Long offshore/pipe-rack spans |
Send your span and loading to [email protected] and our engineers will confirm the section, deflection and clip layout.
Related Products and Guides
- FRP Molded Grating — one-piece offshore panels in 30–50 mm
- FRP Pultruded Grating — I-bar decks for long offshore spans
- FRP Grating Clips — SS316 fasteners for hazardous-area fixing
- Marine FRP Grating — offshore and coastal specification data
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[email protected] · +86-513-6681-9918 · Nantong, Jiangsu, China