These grates block the passage of some debris and light, while remaining somewhat permeable to air and liquids. Read More…
Leading Manufacturers
Strongwell Corporation
Bristol, VA | 276-645-8000Strongwell is the world's leading pultruder of FRP structural components. Strongwell’s products include structural shapes, plate, fiberglass grating, building panels, handrail systems, ladder & cage systems, bridge decks, cooling tower components, planking systems, and custom shapes. If you would like more information about our company then please let us know!
All Plastics and Fiberglass, Inc.
Mobile, AL | 800-226-1134All Plastics and Fiberglass prefabricates gratings products including fiberglass gratings, bar gratings and floor gratings. We offer online ordering of our in-stock products to accommodate all our current and potential customers.
North American Grating Company
Abita Springs, LA | 800-259-6874We offer molded and pultruded fiberglass grating, extruded aluminum stair treads, fiberglass stair treads and covers, fiberglass structural shapes and plates, as well as clips and accessories. Strength and durability are the main factors of our grates, and we take pride in our ability to supply top-notch products that stand the test of time. We have a large number of stock items, but we are always more than willing to supplier non-stock items. We ship quickly and all over the US for our customers convenience.
P&R Metals
Birmingham, AL | 877-880-3319Our seasoned engineers are experts at manufacturing durable gratings. These high quality solutions are specialized for a variety of industries. We take pride in saying that all of our manufacturing processes happen right here in the United States. We promise to assist you with all of your needs. You will be satisfied with our long-lasting economical solutions!
Galvanized Grating - SlipNOT Metal Safety FlooringUsed for drainage, support, filtration, partition and enclosure formation, gratings are employed in many different environments and may be made of a number of different materials. Common metal grate materials that are pre-treated through galvanization include iron, steel and aluminum.
Though these grates may be used without galvanization, this protective process improves the working lifespan of a grate in industries such as heating and cooling, refrigeration, architecture, power generation, automotive, walkway construction, marine superstructure, petrochemical processing, sewage treatment and waste management.
Galvanized Grating - SlipNOT Metal Safety FlooringThe materials moving through these grate systems are often highly corrosive to even durable materials such as steel. Zinc galvanization provides an added layer of protection. While this layer, varying in thickness from 1mm to just over 4mm, will eventually corrode, the damage caused by corrosion is significantly slowed.
The application of zinc is a relatively simple and cost effective procedure making its use popular for a variety of metal grating fixtures such as grills, grids, grip plates and grates, stair treads and drain grates.
Galvanization is most commonly achieved through a process known as hot-dip galvanizing. Essentially, this involves bathing iron or steel grates or grate components in molten zinc. Zinc is kept liquefied at temperatures near 860 degrees F.
The metal articles, first cleaned with a light acid solution, are either dipped or fed into the zinc bath which forms a metallurgical bond with the substrate materials. When exposed to oxygen and carbon dioxide in the atmosphere, the zinc is cured and forms a layer of zinc carbonate that further protects the bars, mesh and sheets of iron, aluminum or steel grates.
While traditional hot-dipping is still widely used, two additional techniques are growing in use and popularity. Electro-galvanizing passes an electric current through the zinc compound in order to create a thinner and more tightly bonded coating.
The newest development is the environmentally friendly thermal diffusion galvanizing which eliminates the hazardous caustic and acid baths used in traditional methods. Rather than a molten bath, zinc powder is applied to grate components which are then sealed in a drum and processed through a rotary oven.
Each technique produces spangle, either uniform or large grain, on the finished grate. Spangle is the appearance of a crystalline structure that gives the formerly shiny metals a dull grey appearance.