Properties

Properties of Pultruded gratings

Higher Stiffness

Pultruded gratings possesses approximately 65% glass and 35% resin content by weight, giving it a very high strength to weight ratio. Load bearing bar capacity can be tailored to the application by modifying the glass content, fiber orientation, and combination of mat and roving reinforcement.

Chemical Resistance

Pultruded gratings offer superb chemical resistance to variety of acids and caustics. Pultruded gratings is offered in an array of corrosion resistant resins designed for any environment, from light or moderately corrosive environments to extremely corrosive applications. Pultruded gratings is offered in either premium isophthalic polyester, vinyl ester or phenolic resins.

Light Weight

Pultruded gratings weight much less than comparable steel gratings, as much as 50-75% weight savings can be realized depending on the bearing bar configuration. For weight sensitive structures, such as a tension-leg platform for an offshore deepwater facility, the use of Pultruded gratings offers significant weight savings, thereby reducing the overall cost of the project.

UV Resistance

All Pultruded gratings are manufacturing with resins containing UV inhibitors. UV resistance is enhanced with the use of a synthetic surfacing veil, creating a “resin rich” surface and further strengthening Pultruded gratings resistance to UV attack.

Impact Resistance

Pultruded gratings offer better impact resistance than conventional steel gratings.

Fire Retardancy

All Pultruded gratings are designed to exhibit a flame spread rating of 25 or less test in accordance with ASTM E-84 tunnel test and meet the self-extinguishing requirements of ASTM D-635. A variety of resins are available offering an array of flame spread ratings and smoke densities.

Non-Skid And Safety

All Pultruded gratings are equipped with a durable and permanent gritted surface on the topside of all bearing bars, thus providing superior slip resistance as compare to traditional steel grated walking surfaces.

Thermally And Electrically Non-Conductivity

Pultruded gratings is both thermally and electrically non-conductive, two features that make it a desirable product in many applications such as those involving electrical and fire hazards. The thermal non-conductivity feature of Pultruded gratings protects individuals from the head radiation that occurs on traditional steel grating during fires-firefighters can get and stay closer to the fire source for linger periods of time.

Low Maintenance/Maintenance Free

With resin and pigment blended throughout Pultruded gratings, you never need to coat or paint the product, it simply does not rust. Coupled with our 316 stainless steel attachment systems, Pultruded gratings offers “maintenance-free” walkway systems. You install it and forget about it!

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