Fiberglass Grating
Classification :
Product Description
Produced by molding or pultrusion process using fiberglass rovings and resin (polyester, vinyl ester, or phenolic). Features high corrosion resistance, lightweight, non-conductive, slip-resistant surface, and low maintenance. Available resin types: orthophthalic (general purpose), isophthalic (superior corrosion), vinyl ester (chemical resistant), phenolic (fire retardant, low smoke). Mesh sizes: 25×25mm, 25×50mm, 38×38mm, 38×76mm, 50×50mm. Panel thickness: 15mm, 20mm, 25mm, 30mm, 38mm. Standard panel size: 1.22×3.66m (4'×12'), or 1×4m, custom available. Surface finish: concave (smooth), convex (grit-top), or pultruded with anti-slip coating. Colors: yellow, green, grey, red, blue (custom). Fire rating: Class 1 or Class B (phenolic resin). Excellent corrosion resistance to acids, alkalis, salts, and solvents. Non-magnetic and electrically insulating. Meets ASTM D635, ISO 14129, or BS 4592 standards. Custom panel sizes, cut-outs, and resin formulations available.
Parameter
|
Product Name |
FRP Grating (Fiberglass Reinforced Plastic Grating) |
|
Manufacturing Process |
Compression molding or pultrusion |
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Resin Types |
Orthophthalic (general purpose), Isophthalic (superior corrosion), Vinyl ester (chemical resistant), Phenolic (fire retardant, low smoke) |
|
Fiberglass Content |
25% – 35% (by weight, depending on resin type) |
|
Mesh Sizes (Openings) |
25×25mm, 25×50mm, 38×38mm, 38×76mm, 50×50mm (custom available) |
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Panel Thickness |
15mm, 20mm, 25mm, 30mm, 38mm |
|
Standard Panel Size |
1.22×3.66m (4'×12'), 1.0×4.0m, 1.5×4.0m (custom sizes available) |
|
Load Bar Pitch (Molded) |
25mm, 38mm, 50mm |
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Cross Bar Pitch |
25mm, 38mm, 50mm, 76mm |
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Surface Finish |
Concave (smooth), convex (grit-top anti-slip), pultruded with quartz sand coating |
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Colors |
Yellow, green, grey, red, blue, black (RAL or custom) |
|
Fire Rating |
Class 1 (phenolic resin), Class B (vinyl ester), Class C (polyester) – ASTM E84 |
|
Oxygen Index |
≥28% (phenolic), ≥24% (vinyl ester), ≥20% (polyester) |
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Smoke Density |
Low (phenolic <200), moderate (vinyl ester), higher (polyester) – ASTM E662 |
|
Corrosion Resistance |
Excellent to acids, alkalis, salts, organic solvents (vinyl ester best; phenolic limited to chemical compatibility) |
|
Electrical Insulation |
Non-conductive; dielectric strength > 10 kV (dry) |
|
Specific Gravity |
1.5 – 1.9 (depending on resin and glass content) |
|
Flexural Strength (MPa) |
80 – 150 (molded), 150 – 250 (pultruded) |
|
Tensile Strength (MPa) |
50 – 100 (molded), 150 – 200 (pultruded) |
|
Modulus of Elasticity (GPa) |
5 – 10 (molded), 10 – 20 (pultruded) |
|
Temperature Resistance |
–40°C to +80°C (polyester/vinyl ester), –40°C to +150°C (phenolic) |
|
UV Resistance |
UV-stabilized resin or gel coat recommended for outdoor use |
|
Standards Compliance |
ASTM D635, ISO 14129, BS 4592, EN 13706 |
|
Custom Options |
Panel size, mesh opening, thickness, resin type, color, cut-outs, chamfered edges |
Application description:
Widely used in chemical plants (platforms, walkways), water treatment facilities (drainage covers, trench grates), food processing plants (anti-slip flooring), marine and offshore structures (boat decks, docks), electrical substations (insulated flooring), and commercial buildings (ramps, ventilation grilles). Also suitable for swimming pools, laboratories, and mining operations. The corrosion resistance, lightweight, and non-conductive properties make it ideal for harsh, wet, or electrically sensitive environments.
Production description
Fiberglass rovings and resin (polyester, vinyl ester, or phenolic) are placed into a heated mold. Under pressure, the resin cures and bonds with the glass fibers to form a rigid grid. For pultruded grating, continuous fibers are pulled through a resin bath and heated die to shape. After demolding, panels are trimmed and surface finished.
Shipping Packaging
For export, FRP grating panels are stacked flat with interleaved foam or wooden separators, secured with steel straps, fitted with edge protectors, and packed on ISPM-15 pallets or in wooden crates. Labels include resin type, mesh size, panel dimensions, and quantity for safe sea freight.
Why Choose Us?
1.Factory Strength:Direct manufacturer with compression molding and pultrusion lines, ensuring consistent mesh opening, uniform panel thickness (15–38mm), and stable mechanical properties for orthophthalic, isophthalic, vinyl ester, and phenolic resin types.
2.Quality Assurance:Strict control of resin-to-glass ratio, flexural strength (80–250MPa), fire rating (Class 1 for phenolic), and surface slip resistance; 100% visual and dimensional inspection; compliant with ASTM D635, ISO 14129, BS 4592.
3.Certifications & Reports:Mill test certificates (MTC) with each shipment; third-party inspections (SGS, BV) and fire/smoke/mechanical test reports available upon request.
4.Customization & Service:Wide mesh sizes (25×25 to 50×50mm), panel dimensions (up to 1.22×3.66m standard, custom available), resin types (general, corrosion, chemical, fire retardant), colors (yellow, green, grey, red, blue, custom), and anti-slip surface finishes with fast lead times.
5.Export Packaging:Flat stacking with foam/wooden separators + steel strapping + edge protectors + ISPM-15 pallets/wooden crates + clear labeling for safe sea freight and scratch-free delivery.
FAQ
1. How to store FRP grating to prevent warping and surface damage?
Store on level, dry ground on wooden pallets or sleepers, stack flat with separators between layers. Avoid exposure to direct UV for long periods (unprotected resin may degrade). For outdoor storage, cover with opaque tarpaulin. Clean with mild detergent and water; avoid harsh solvents that may attack the resin.
2. Which resin type should I choose for my environment?
Orthophthalic polyester: general purpose, good for dry or mildly humid indoor use. Isophthalic polyester: better corrosion and water resistance, suitable for wastewater, marine, and chemical splash areas. Vinyl ester: excellent resistance to acids, alkalis, and solvents, ideal for chemical plants and aggressive environments. Phenolic: fire-retardant, low smoke, and low toxic gas emission, required for fire-safe applications like offshore platforms and escape routes.
3. Is FRP grating slip-resistant, and how does it compare to steel grating?
Yes. Standard FRP grating has a concave or grit-top surface providing good slip resistance. For extra anti-slip, we offer convex surface with quartz sand coating. FRP is less slippery than smooth steel and comparable to serrated steel grating, but FRP offers additional benefits: corrosion resistance, lightweight, electrical insulation, and no sparks upon impact – ideal for chemical, electrical, and wet environments.
Factory workshop
With a commitment to excellence, innovation, and sustainability, the company has established itself as a trusted partner in the international steel industry.After nearly two decades of relentless endeavour, our client base now spans over 110 countries and regions across Europe, the Middle East, South America, and Southeast Asia.
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