Chemical plants deal with acids, alkalis, solvents and washdown that destroy steel. FRP Grating Master supplied a heavy-duty vinyl ester platform for a Dutch chemical facility and a lightweight maintenance walkway on a Singapore rooftop — two corrosion challenges, one composite answer.

The corrosion problem in chemical processing

Chemical plant environments are the harshest test for industrial flooring: acid mists, alkaline washdowns, solvent splashes and humid process air. Steel platforms corlete within months, iron-based structures rust and stain process areas, and even stainless steel suffers pitting from chlorides. FRP grating solves this because the glass fiber reinforcement and resin matrix are inherently non-corroding. The resin grade is selected per chemical exposure — vinyl ester for acids and solvents, isophthalic polyester for milder exposure.

Case 1: Heavy-duty vinyl ester platform at a Dutch chemical plant

A chemical plant in the Netherlands required a heavy-duty loading platform that could support process equipment drums and operator traffic while resisting routine chemical washdown. FRP Grating Master supplied a vinyl ester FRP grating platform rated for heavy-duty loads. Pultruded I-bar grating was selected over molded grating because the platform spans were longer and the point loads from drums and equipment trolleys demanded higher structural depth. Vinyl ester resin provides documented resistance to the acids and alkalis present in the plant's process areas. The non-conductive surface also eliminated a grounding risk near electrical instrumentation.

Case 2: Lightweight rooftop maintenance walkway in Singapore

An industrial facility in Singapore needed a rooftop maintenance walkway across a chemical-processing roof where live process lines run overhead. The key constraint was weight: the roof structure was not designed to support steel grating. FRP Grating Master supplied lightweight, corrosion-resistant FRP grating walkway panels — molded 25 mm panels that weigh a fraction of steel while still providing safe access for maintenance personnel. The corrosion resistance matters because the rooftop sees chemical fumes and tropical humidity year-round. Installation was straightforward: panels clipped to existing steel angle supports, no hot work required on a live roof.

Why resin selection is critical

Not all FRP grating is equal in a chemical plant. Orthophthalic polyester handles mild atmospheric exposure; isophthalic polyester resists mild acids and alkalis; vinyl ester is specified for strong acids, solvents and continuous chemical splash. FRP Grating Master supplies a chemical resistance chart covering 50+ environments and can recommend the resin grade from your process list. For these projects, the Dutch platform used vinyl ester throughout; the Singapore rooftop used isophthalic/vinyl ester blend panels suited to intermittent fume exposure.

Product types and installation notes

The Dutch platform used pultruded I-bar grating 50 mm deep, grit-top surface, SS316 clips. The Singapore walkway used molded 25 mm panels, concave surface for tropical rain drainage, standard fiberglass clips. Both projects required cut-to-size fabrication to fit existing steel substructures. FRP's light weight meant no structural reinforcement was needed — a key cost advantage over replacing corroded steel with new steel.

How to start your FRP grating project

Send us your site drawings or a simple description of the environment: exposure zone, required load, span between supports, and the chemicals or climate conditions. Our engineering team will recommend the resin grade, panel thickness and surface type, and send a quotation within 24 working hours. Free samples are available for evaluation. Because FRP Grating Master is a direct factory — not a trader — you get factory-direct pricing, full CAD engineering support, and quality control at every production stage from raw resin to finished panel.

Standard specifications and supply

FRP Grating Master manufactures both molded and pultruded grating in-house. Standard molded panels measure 1220 x 3660 mm in 25, 30, 38 and 50 mm thicknesses, with 38 x 38 mm or 19 x 19 mm mesh options. Pultruded I-bar profiles range from 25 to 100 mm depth for heavy-duty spans. Resin options include orthophthalic, isophthalic and vinyl ester, with fire-retardant phenolic grade available. Production lead time is 15 to 25 days after drawing approval, with export to 40+ countries under ISO 9001 certification. Free samples and cut-to-size fabrication are standard.

Key takeaways

Pultruded I-bar grating carries heavy process loads; molded panels suit lightweight maintenance walkways. Vinyl ester is the default for chemical splash; confirm the resin against your chemical list. FRP's quarter-weight eliminates structural upgrade costs. Read more about FRP grating for chemical plant applications and the vinyl ester chemical resistance guide.