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Help CenterFRP Pultruded Grating, 1.5" x 1.5" Grid, 1" Thick, Corrosion Resistant, Fire Retardant ASTM E84 Class 1
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As a leading manufacturer based in Hengshui, Hebei, China, Hengshui Ruibin New Materials LLC specializes in producing high-quality FRP pultruded grating. Our factory spans 1,000–3,000 square meters and is equipped with advanced pultrusion lines, ensuring consistent product quality and timely delivery. With an annual export value of US$2.5–5 million and ISO 9001 certification, we serve diverse markets including North America, Europe, Southeast Asia, and the Middle East. This FRP Pultruded Grating (1.5" x 1.5" grid, 1" thick) combines corrosion resistance, fire retardancy (ASTM E84 Class 1), and structural strength, making it an ideal solution for demanding industrial environments.
Our grating is manufactured using continuous pultrusion technology, which ensures uniform fiber distribution and consistent mechanical properties. The 1.5" x 1.5" square grid pattern provides excellent load distribution, while the 1" thickness delivers high stiffness and impact resistance. The fire retardant resin system meets ASTM E84 Class 1 (Class A) standards, offering a flame spread index below 25 and smoke developed index below 450 – critical for safety in oil & gas, chemical plants, and offshore platforms.
Key Technical Specifications
| Grid Size | 1.5" x 1.5" (38 mm x 38 mm) |
| Thickness | 1" (25.4 mm) |
| Panel Size | 4' x 8' (custom sizes available) |
| Fire Rating | ASTM E84 Class 1 (Class A) – Flame Spread ≤25, Smoke Developed ≤450 |
| Resin Type | Isophthalic Polyester (standard) / Vinyl Ester (for enhanced corrosion resistance) |
| Surface | Gritted top surface for anti-slip (optional: concave or smooth) |
| Color | Yellow, Green, Gray, or custom RAL colors |
| Load Capacity | Up to 500 psf (depending on support spacing) |
Product Features and Benefits
- Exceptional Corrosion Resistance: The FRP material resists attack from acids, alkalis, salts, and moisture, outperforming steel and aluminum in harsh environments. Ideal for chemical plants, wastewater treatment, and marine applications.
- Fire Retardant Performance: Meets ASTM E84 Class 1 (Class A) requirements, ensuring low flame spread and smoke development. This makes the grating suitable for fire-safety-critical areas such as offshore platforms, refineries, and public buildings.
- High Strength-to-Weight Ratio: With a 1" thickness, the grating offers robust load-bearing capacity while weighing only about one-fourth of steel. This reduces structural support costs and simplifies installation.
- Anti-Slip Surface: The gritted top surface provides reliable traction even in wet or oily conditions, reducing slip and fall risks for workers.
- Low Maintenance & Long Service Life: FRP does not rust, rot, or corrode. It requires no painting or coating, and its lifespan can exceed 20 years in typical industrial environments.
- Easy Fabrication & Installation: The grating can be cut, drilled, and shaped on-site using standard woodworking tools. It is lightweight and easy to handle, reducing labor time.
- Electrical & Thermal Insulation: Non-conductive and non-magnetic, this grating is safe for use in electrical substations and areas where sparking must be avoided. It also has low thermal conductivity, providing comfort underfoot.
- Customizable Options: Available in different resin types (e.g., vinyl ester for higher chemical resistance), colors, sizes, and surface textures. We can also manufacture panels with integrated fasteners or custom cutouts.
Trusted Quality – Backed by Our Factory
At Hengshui Ruibin New Materials LLC, we take pride in our ISO 9001:2015 certified quality management system. Our 101–200 skilled employees operate modern pultrusion lines, and every batch is tested for dimensional accuracy, mechanical properties, and fire performance. With an annual export value of US$2.5–5 million, we have supplied grating to projects in North America, South America, Europe, Africa, and Asia. Our products are shipped from Tianjin or Qingdao ports, ensuring reliable logistics worldwide.
We understand that every project has unique requirements. Our engineering team can provide load calculations, custom fabrication, and sample panels for evaluation. Contact us today for a quotation or technical consultation. Experience the durability and safety of Ruibin FRP grating – your trusted partner for industrial flooring solutions.
Frequently Asked Questions (FAQ)
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What is the maximum span for this grating?
The maximum recommended support spacing is 24 inches for pedestrian loads and 18 inches for light industrial loads. For specific load requirements, please consult our technical sheet. -
Can the grating be used in direct contact with chemicals?
Yes, the standard isophthalic polyester resin offers good resistance to many chemicals. For aggressive environments (e.g., strong acids, solvents), we recommend vinyl ester resin. Contact us with the chemical list for a compatibility assessment. -
How do I cut the grating to size?
FRP grating can be cut using a diamond blade saw or abrasive wheel. Wear protective gear (dust mask, goggles) and ensure proper ventilation. We can also provide pre-cut panels to your drawings. -
Is the grating UV stable?
The standard grating includes a UV-resistant gel coat or pigment. For outdoor applications, we recommend selecting a UV-stabilized resin to prevent color fading and surface degradation. -
What is the weight per square foot?
Approximately 3.5–4.0 lbs/ft² for 1" thick, 1.5" x 1.5" grid pattern. Exact weight depends on resin type and glass content. -
Does the grating meet OSHA or ADA requirements?
Yes, the anti-slip surface (gritted) meets typical slip resistance standards. The open grid design allows drainage and light passage. For specific compliance, please provide your local regulations. -
What is the minimum order quantity?
We accept small quantities (as low as 10 panels) for sample or trial orders. For large projects, we offer volume discounts. -
How long does delivery take?
Standard lead time is 15–20 working days after order confirmation. Express production is available for urgent orders.
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