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Explore our core product categories engineered for chemical processing environments and residential air handling systems.
Fiberglass Reinforced Plastic (FRP) grating — commonly known as fiberglass grating — is a composite structural material manufactured by combining continuous glass fiber rovings with a thermosetting resin matrix. The result is a lightweight, high-strength panel that delivers exceptional resistance to corrosive chemicals, moisture, UV radiation, and extreme temperatures.
In chemical plant environments, fiberglass grating has become the material of choice for walkways, platforms, drainage covers, and structural flooring where steel would rapidly corrode. In the residential and commercial HVAC sector, FRP grating is now widely integrated into air handling units (AHUs), air purification chambers, and ventilation duct supports — sectors that demand both structural integrity and chemical inertness.
From aggressive acid environments to smart home air purification units, FRP grating delivers unmatched performance across a diverse range of industrial and residential scenarios.
In petrochemical refineries, acid manufacturing plants, and pharmaceutical facilities, FRP grating replaces steel flooring on elevated walkways, mezzanines, and equipment platforms. Its non-sparking surface and resistance to sulfuric, hydrochloric, and nitric acids make it indispensable in hazardous zones.
Modern residential HVAC units increasingly use FRP grating panels as structural supports within air handling units (AHUs). The material's non-corrosive nature prevents contamination of circulated air — a critical requirement for homes with allergy sufferers or immunocompromised occupants.
High-efficiency air purification systems — including HEPA, UV-C, and activated carbon filter units — use fiberglass grating as internal filter support grids and airflow distribution panels. FRP's dimensional stability under temperature cycling ensures consistent filter seating and airflow efficiency.
Fiberglass grating trench covers and drainage gratings in chemical plants handle aggressive effluent streams without degradation. Molded FRP gratings with anti-slip surfaces meet OSHA safety standards while resisting chemical splash, thermal shock, and UV exposure in outdoor processing areas.
Industrial cooling towers — critical infrastructure for chemical plants — require materials that withstand constant moisture, biocides, and scale-inhibiting chemicals. FRP grating fan decks and structural platforms outperform galvanized steel by a factor of 3–5× in service life, dramatically reducing maintenance costs.
As indoor air quality (IAQ) becomes a priority in smart home design, FRP grating is being integrated into whole-home ventilation systems, ERV/HRV units, and integrated air purification modules. Its low thermal conductivity reduces condensation risk in ductwork — a major cause of mold growth in residential HVAC systems.
The convergence of tightening environmental regulations, smart building mandates, and post-pandemic indoor air quality awareness is reshaping demand for fiberglass grating across both industrial and residential sectors.
EPA and OSHA regulatory updates in the US, REACH compliance in Europe, and China's GB standards are mandating non-metallic, corrosion-resistant materials in chemical processing zones. FRP grating is now specified by name in updated facility safety codes for flooring in acid handling areas.
COVID-19 fundamentally changed consumer attitudes toward indoor air quality. The residential air purification market grew by over 22% CAGR post-2020. HVAC manufacturers are now specifying FRP components in premium air purification units to eliminate metallic contamination risks in air streams.
LEED v4.1 and BREEAM certification frameworks award credits for low-maintenance, long-lifecycle materials. FRP grating's 25+ year service life with zero painting or galvanizing requirements makes it a preferred specification in green chemical facility and sustainable HVAC system design.
The shift toward modular chemical plant construction and prefabricated HVAC skid packages has increased demand for lightweight, pre-cut FRP grating panels that can be installed rapidly without welding or heavy lifting equipment — reducing both installation time and on-site labor costs by up to 40%.
As chemical plants integrate more automation, robotics, and electrified processing equipment, the electrical non-conductivity of FRP grating becomes a critical safety advantage. FRP flooring eliminates ground fault pathways, reducing electrical accident risks in wet chemical processing environments.
Advanced pultrusion and molding technologies now allow FRP grating to be manufactured in custom mesh sizes, resin formulations (vinyl ester, isophthalic polyester, phenolic), and surface profiles tailored for specific HVAC airflow requirements or chemical plant load specifications — enabling true engineer-to-order solutions.
Eight compelling technical and commercial reasons why engineers and facility managers specify FRP grating over traditional steel alternatives.
Impervious to acids, alkalis, solvents, and salt spray. Ideal for chemical plant atmospheres and humid HVAC plenums where steel corrodes within months.
Zero electrical conductivity eliminates shock hazards in wet chemical processing floors and prevents galvanic corrosion in mixed-material HVAC assemblies.
Up to 70% lighter than comparable steel grating. Reduces structural load requirements, shipping costs, and installation labor — critical for rooftop HVAC unit retrofits.
Available in fire-retardant resin formulations meeting ASTM E-84 Class 1 flame spread ratings — compliant with building codes for commercial HVAC mechanical rooms and chemical plant escape routes.
Low thermal conductivity reduces heat transfer in HVAC duct supports, minimizing condensation and energy loss. Maintains structural integrity from -40°C to +120°C.
Grit-top and concave surface options provide OSHA-compliant anti-slip performance in wet chemical plant walkways and HVAC maintenance platforms — even when coated with condensate or process fluids.
Zero painting, galvanizing, or anti-corrosion treatment required. Lifecycle cost analysis consistently shows 40–60% savings over steel over a 20-year facility operation period.
No heavy metal leaching, no VOC-based coatings, and no zinc or chromate treatments. FRP grating supports green building certifications and chemical plant environmental compliance programs.
Get expert guidance on the right fiberglass grating specification for your chemical plant walkways, residential HVAC air handler units, or air purification system internals. Our engineering team is ready to assist.
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Shanghai Jinnuo Metal Products Co., Ltd. is a second-generation, family-owned enterprise and was a general wire mesh manufacturer founded in 1991. In its beginning stages, the company mainly produced and sold stainless steel wire mesh.
Over three decades of continuous growth, Jinnuo has evolved from a single stainless steel mesh manufacturer into an international metal product supply complex — supplying fiberglass FRP grating, expanded metal, steel grating, and industrial mesh solutions to clients across 50+ countries.
Today, Jinnuo operates welding workshops, punching workshops, weaving workshops, and a professional design team dedicated to personalized product customization — including bespoke FRP grating panels for chemical plant flooring and residential HVAC air purification applications.
Contact UsHigh standard quality and professional product customization services have won recognition from global customers. Afterwards, a large amount of funds were invested in the expansion of the factory. Currently, we have a welding workshop, punching workshop, weaving workshop, and a professional design team for personalized service product customization.
With over 20 years of manufacturing and exporting experience, Jinnuo has evolved from a single stainless steel mesh manufacturer to an international metal product supply complex — delivering certified FRP grating solutions for chemical plants, residential HVAC units, and air purification system OEMs worldwide.
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Browse our full range of industrial grating and mesh products — all available in custom specifications for chemical plant and residential HVAC air purification projects.
Our mission is to serve the industries we serve. We are committed to continuous improvement, a friendly personal service, and working with you — our customers — to develop the endless possibilities of our products.
Whether you need custom FRP grating panels for a chemical plant retrofit, residential HVAC air handler upgrade, or air purification system build-out, our technical team will provide prompt, expert guidance and competitive pricing.
