High Load Capcity Fiberglass Grating
Ideal for trench covers, ramps, or inlet covers, high load capacity (HLC) fiberglass grating is produced in both molded and pultruded configurations. These products are engineered and manufactured to support vehicular and forklift traffic in corrosive environments. All high load panels have a Class 1 Fire Rating with an ASTM E84 flame spread rating of 25 or less. Like other fiberglass grating products, these panels are:
- Corrosion resistant
- Low maintenance
- Slip-resistant
- Non-conductive
HLC Fiberglass Grating Products
Molded HLC Fiberglass Grating
Manufactured with a 1” x 2” rectangular mesh, molded HLC products are available in 1-1/2” or 2” depths. The 48% open area of these products assures rapid draining of liquids and spills. Standard resin is Vi-Corr vinyl ester, with options for Corvex polyester or FGI-AM food grade.
- Standard panel sizes: 6’ x 4’ and 4’ x 8’
- Standard color: dark gray
- Standard surface: Concave meniscus (optional applied grit)
For additional information view Molded HLC Details & Load Tables.
Safe-T-Span Pultruded HLC Grating
Produced in depths ranging from 1” to 3” with open area ranging from 37% to 58%, pultruded HLC products are rated for loads up to H-20 truck traffic. Standard resin is VEFR vinyl ester or optional ISOFR polyester resin.
- Standard panel sizes: 3’, 4’, or 5’ widths, lengths up to 24’
- Standard color: dark gray
- Standard surface: applied grit
For additional information please view Pultruded HLC Grating Details & Load Tables.
Molded High Load Capacity FRP Grating Details
The Molded HLC Grating Details and Load Tables document available in the PDF below provides in-depth information about the HLC fiberglass panels available as well as load details. Load details include AASHTO truck standards, vehicle and forklift loading, as well as load tables for uniform and concentrated loads.
Pultruded High Load Capacity FRP Grating Details
The Pultruded HLC Grating Details and Load Tables document available in the PDF below provides in-depth information about pultruded HLC fiberglass panels available as well as load details on page 2 of the document. Load details include AASHTO H-5, H-10, H-15, H-20, and H-25 truck standards, passenger vehicle, and forklift loading for 1, 3, and 5 ton forklifts.
Standard Resins & Colors
Corvex®
This isophthalic polyester resin system outperforms a number of competitive fiberglass and metal products. Corvex meets the requirements for corrosion resistance found in industrial, chemical processing, and water/wastewater applications.
Flame Spread: ASTM E84 rating of 25 or less.
Certifications: meets the USCG requirements for general fire rating*.
Standard colors: yellow, dark gray, or dark green.
Vi-Corr®
A superior vinyl ester resin developed for reliable performance in the toughest environments. It offers outstanding resistance to a wide range of highly corrosive situations, from caustic to acidic.
Flame spread: ASTM E84 rating of 25 or less.
Certifications: DNV GL Type Approval No. TAF000003C; ABS Type Approval No. 01-HS34733-X; meets the USCG requirements for general fire rating*.
Standard colors: orange or dark gray.
FGI-AM®
This food-grade isophthalic polyester resin system offers antimicrobial properties to inhibit the growth of bacteria on the surface of the composite to protect the product itself. FGI-AM provides the necessary corrosion resistance to meet the requirements of the food and beverage industry. This product is intended only for non-public health uses.
Flame Spread: ASTM E84 rating of 25 or less.
Certifications: USDA Approvable.
Standard colors: light gray or green.
ISOFR
Isophthalic polyester resin formulation with a low flame spread rating of 25 or less designed for applications where there is moderate exposure to corrosive elements (DNV Type Approval Certificate F-16856).
Flame Spread: ASTM E84 rating of 25 or less
Standard colors: yellow or dark gray.
VEFR
Vinyl ester resin system with a flame spread rating of 25 or less for dependable resistance to both acidic and alkaline environments.
Flame spread: ASTM E84 rating of 25 or less
Standard colors: yellow or dark gray.
Fibergrate Chemical Resistance Guide
For further information on resins and chemical resistance, please click here.
Chemical Resistance Guide
When selecting a fiberglass grating resin, it is important to know what corrosive agents the grating will be exposed to once it is installed. This Chemical Resistance Guide is based on extensive experience with fiberglass grating. As actual use conditions differ, the end user must test the grating for use under actual conditions. Grating Pacific’s technical service representatives are available to discuss the specifics of each project and assist our customers in selecting the best resin for their project.
