Product Overview
30mm FRP (Fiberglass Reinforced Plastic) molded gratings are manufactured from a thermosetting resin combined with continuous fiberglass rovings to form a one-piece interwoven mesh. The 30mm thickness provides structural depth for pedestrian and light-duty industrial walkways, platforms, and access areas.
Comparison with Metal Gratings
| Feature | 30mm FRP Molded Grating | Steel Grating | Aluminum Grating |
|---|---|---|---|
| Weight | 15.5 kg/m2 | 50.3 kg/m2 | 23.1 kg/m2 |
| Corrosion Resistance | Resistant to many chemicals | Requires coating/protection | Good in many environments |
| Maintenance Requirements | Low | High | Moderate |
| Installation Cost | Lower due to weight | Higher | Moderate |
| Electrical Conductivity | Non-conductive | Conductive | Conductive |
| Initial Cost | Higher | Lower | Moderate |
Note: Service-life and total-cost-of-ownership comparisons depend on the specific chemical, load, and environmental conditions. Contact our engineering team for project-specific guidance.
Performance Characteristics
Weight and Handling
- Lighter than steel grating of equivalent panel dimensions, which can reduce handling and installation labor.
- Can be cut and drilled on-site with standard tools.
- Low thermal conductivity reduces heat transfer in extreme-temperature environments.
Chemical and Environmental Resistance
- Resistant to many acids, alkalis, and industrial chemicals; verify compatibility for your specific application.
- Non-conductive, suitable for electrically sensitive installations.
- UV-stabilized formulations are available for outdoor exposure.
Safety Features
- Slip-resistant grating surface options are available.
- Fire-retardant formulations can be supplied to meet Class 1 flame spread rating (ASTM E84) where required.
- Non-conductive properties help reduce electrical hazards in power generation and utility facilities.
Technical Specifications
Standard Dimensions
| Panel Size (mm) | Weight (38x38mm mesh) | Weight (19x19mm mesh) | Max Recommended Span |
|---|---|---|---|
| 2000 x 1000 | 29.4 kg | 35.0 kg | 900 mm |
| 3660 x 1220 | 65.7 kg | 78.3 kg | 900 mm |
| 4000 x 1000 | 58.8 kg | 70.0 kg | 850 mm |
| 1500 x 4000 | 88.2 kg | 105.0 kg | 900 mm |
Load Performance Data
| Mesh Size | Uniform Load Capacity (5mm deflection) | Concentrated Load (point load) |
|---|---|---|
| 38x38mm | 13.5 kN/m2 at 1000mm span | 2.2 kN at 1000mm span |
| 19x19mm | 15.8 kN/m2 at 1000mm span | 2.9 kN at 1000mm span |
| 40x40mm | 12.8 kN/m2 at 1000mm span | 2.0 kN at 1000mm span |
Load values are typical for the specified mesh and span. Confirm suitability for your design loads with our engineering team.
Chemical Resistance Chart
| Chemical | Concentration | Resistance Rating |
|---|---|---|
| Sulfuric Acid | 10-75% | Excellent |
| Hydrochloric Acid | 10-37% | Excellent |
| Sodium Hydroxide | 10-50% | Excellent |
| Sodium Hypochlorite | 10-15% | Excellent |
| Gasoline/Diesel | 100% | Excellent |
| Acetone | 100% | Fair |
| Methanol | 100% | Good |
| Seawater | N/A | Excellent |
Chemical resistance ratings are typical for standard vinyl-ester formulations; verify for your concentration, temperature, and exposure duration.
Applications
Industrial Environments
- Chemical processing facilities
- Pulp and paper mills
- Food processing plants
- Water and wastewater treatment facilities
- Mining operations with acid or abrasive exposure
Marine and Offshore
- Offshore platforms and shipboard walkways
- Docks, marinas, and aquaculture facilities
- Saltwater-exposed access platforms
Special Applications
- Data centers and battery manufacturing facilities
- Solar farm maintenance platforms
- Railway and utility infrastructure
Installation
30mm FRP molded gratings can be cut and modified on-site using standard tools:
- Circular saw with abrasive or diamond blade
- Drill with standard metal bits
- Hold-down clips, J-bolts, or M-clips
Contact our team for installation guidance and recommended fasteners for your project.
Frequently Asked Questions
What is the difference between molded and pultruded FRP grating?
Molded gratings feature a one-piece construction with fiberglass rovings running in both directions, creating uniform bi-directional strength. Pultruded gratings consist of parallel bars connected by cross-rods, offering higher strength in one direction. The best choice depends on load direction, span, and application requirements.
How long will 30mm FRP molded gratings last?
Service life depends on resin formulation, chemical exposure, UV conditions, and loading. Many FRP grating installations remain in service for decades in suitable environments. Contact us for a project-specific assessment.
Can I cut FRP gratings on-site?
Yes, FRP gratings can be cut with standard tools such as circular saws with diamond or abrasive blades. Wear appropriate PPE because cutting produces fiberglass dust.
Are FRP gratings fire-resistant?
Standard FRP gratings can be supplied with fire-retardant formulations. Fire-class requirements vary by project; confirm the needed rating with our sales team.
Will UV exposure degrade FRP gratings?
UV inhibitors can be added to reduce surface degradation and discoloration from sunlight. Long-term performance depends on geographic location and exposure level.
What is the maximum span for 30mm FRP grating?
For pedestrian applications, maximum spans of approximately 900mm are common for 30mm thick gratings. For vehicular traffic or higher loads, consult our load tables or engineering team.
How do I clean and maintain FRP gratings?
FRP gratings generally require minimal maintenance. Routine cleaning with water and mild detergent is usually sufficient. Unlike bare steel, they do not require painting or coating for corrosion protection.
Quality Assurance
Panels are manufactured under controlled processes and can be supplied with documentation on resin type, glass content, and mechanical properties on request. Contact IncomePultrusion for warranty terms and project documentation.
Request a Project Quote
Contact IncomePultrusion for specifications, lead times, and competitive B2B pricing tailored to your application.
