Strongwell produces DURADEK® by combining superior raw materials, pultrusion process, and composite design. DURADEK® is considered the highest quality pultruded fiberglass grating available on the market.
.jpg)
Figure 1. DURADEK® can be custom manufactured in special colors.
Properties and Key Features of DURADEK®
The DURADEK® has high ultimate strength, preventing impact damage. It also shows high corrosion resistance to most acids, salts, and caustics. It has a non-skid surface and low electrical conductivity, ensuring safety.
Other key features of the DURADEK® include:
- Field fabricated easily
- Versatile
- Lightweight
- Fire retardant – Meeting the self-extinguishing requirements of ASTM D-635 and the prerequisites of Class 1 rating of 25 or less per ASTM E-84
- Contains UV inhibitors
- Can be custom fabricated in special colors (Figure 1)
Duradek Pultruded Grating Vs Steel Grating
The following table compares Duradek® pultruded grating (Figure 2) against steel grating (Figure 3).
.jpg)
Figure 2. Duradek pultruded grating
.jpg)
Figure 3. Steel grating
| Features |
DURADEK® Pultruded Grating |
Steel Grating |
| STRENGTH |
DURADEK® I-6000, 1-1/2"
48" Span, Ultimate Load = 2032 PSF
DURADEK® has a higher ultimate load carrying capacity. |
3/16" x 1-1/2" Bar, 1-3/16" o.c.
48" Span, Ultimate Load = 1,160 PSF |
| WEIGHT |
DURADEK® I-6000, 1-1/2" 3.3 PSF |
3/16" x 1-1/2" Bar, 1-3/16" o.c. 11.0 PSF |
| IMPACT RESISTANCE |
Glass mat in DURADEK® grating distributes impact load to prevent surface damage even under sub-zero temperatures. Will not permanently deform.
Stays flat for the life of the product. |
Will permanently deform under impact.
Takes a permanent set (dishing) in trench applications due to overloading. |
| CORROSION RESISTANCE |
DURADEK®, with its polyester resin, is resistant to corrosion caused by a broad range of acids, caustics and salts.
Requires no painting or galvanizing. |
Will rust even from water. Can cause galvanic corrosion. Requires painting or galvanizing for many applications. |
| SAFETY |
DURADEK® has a round silica grit bonded to the surface of bearing bars for non-skid safety.
Low in electrical and thermal conductivity. |
Non-serrated bars are not skid resistant or only skid resistant in one direction. Grounding potential around electrical equipment. |
| VERSATILITY |
DURADEK® can be purchased in a safety yellow or gray with the resin pigmented throughout the bar. No painting required. |
Grating must be painted for color. To maintain color and corrosion resistance, repainting may be required. |
| EASY FIELD FABRICATION |
DURADEK® can be field fabricated with simple carpenter tools, is easy to cut and is much easier to move and place because it is lightweight. |
Requires special blades, torch, harder to cut. Requires lifting equipment to move and place. |
| BANDING |
DURADEK® is an I-bar that does not leave a sharp edge when cut. The bars will not bend or deform in the lateral direction; therefore, DURADEK® does not need to be banded. |
Cutting a rectangular steel bar leaves sharp edges. The flat bars will bend and deform in the lateral direction; therefore, steel should be banded. |
This information has been sourced, reviewed and adapted from materials provided by Strongwell Corporation.
For more information on this source, please visit Strongwell Corporation.