Fiberglass grating is grating made from fiberglass reinforced plastic (FRP), a popular pick across industrial and commercial settings thanks to its advantages over steel, aluminum, or wood grating. Here’s what fiberglass grating is, how it’s made, its benefits and drawbacks, and how to choose the right supplier.
What Is Fiberglass Grating?
Fiberglass grating is a composite of two main components: fiberglass roving and resin. Fiberglass roving is a bundle of continuous glass fibers woven into a mesh-like structure, and resin — a liquid polymer, either thermoset or thermoplastic depending on the curing process and desired properties — binds the roving together, giving it strength, stiffness, and corrosion resistance.
Fiberglass grating breaks down into two main types. Molded fiberglass grating comes from placing fiberglass roving in a mold and pouring resin over it, then curing under heat and pressure into a solid panel with uniform thickness and an open grid pattern. Pultruded fiberglass grating comes from pulling the roving through a resin bath and then a heated die that shapes it, with the resin curing as the profile exits the die to form a rigid bar with a constant cross-section and closed surface.
Benefits and Drawbacks
Fiberglass grating holds real advantages over other grating types:
Lightweight: much lighter than steel or aluminum grating, easing transport, installation, and maintenance, while cutting the load on supporting structures and foundations — saving cost and improving safety.
Corrosion-resistant: holds up against chemicals, moisture, salt, and UV rays where metal grating would rust or deteriorate, without needing paint or coating for corrosion protection — saving time and money.
Non-conductive: electrically and thermally non-conductive, ideal wherever electrical or thermal hazards exist — power plants, chemical plants, oil refineries — and it won’t spark or ignite near flames or sparks, cutting fire risk.
Slip-resistant: a high coefficient of friction gives good grip and traction for workers and vehicles, and surface textures — gritted, concave, smooth — can be tailored to boost slip resistance further, cutting the risk of slips and falls.
Durable: a high strength-to-weight ratio lets it withstand heavy loads and impacts without breaking or deforming, and a low coefficient of thermal expansion keeps it from expanding or contracting much with temperature swings, holding its shape and size over time.
That said, fiberglass grating carries some drawbacks worth weighing:
Cost: fiberglass grating costs more upfront than steel or aluminum, and needs more specialized equipment and skill to manufacture and install — though its lower maintenance and replacement costs can bring lower life-cycle costs overall.
Brittleness: more prone to cracking or shattering under sudden or excessive force than metal grating, with lower fatigue resistance under repeated loading cycles — so it needs careful handling and regular inspection for damage or wear.
Color fading: can fade over time from sunlight or other environmental exposure, and lose glossiness or smoothness from abrasion or erosion — regular cleaning and protection from direct sunlight or harsh weather helps.
Choosing a Supplier
With so many options on the market, picking the right fiberglass grating supplier takes some evaluation. Consider:
Quality: depends on raw material quality, manufacturing process, quality control, and testing — look for suppliers using high-quality fiberglass roving and resin, following strict standards and certifications, and providing test reports and warranties.
Price: varies with type, size, shape, color, and quantity, plus shipping and installation costs — look for competitive prices, bulk discounts, and low-cost or free shipping and installation.
Service: depends on customer support, technical support, delivery time, and after-sales service — look for responsive, professional staff, on-time delivery, and repair or replacement options if issues arise.
Reputation: depends on customer reviews, ratings, feedback, and referrals — look for positive track records and recommendations from industry peers or experts.
Conclusion
Fiberglass grating is grating made from fiberglass reinforced plastic (FRP), offering real advantages — lightweight, corrosion-resistant, non-conductive, slip-resistant, durable — alongside some tradeoffs, including cost, brittleness, and color fading. Weigh the pros and cons carefully, and choose a supplier based on quality, price, service, and reputation.