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.
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
- 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).
Figure 2. Duradek pultruded grating
Figure 3. Steel grating
||DURADEK® Pultruded Grating
||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
||DURADEK® I-6000, 1-1/2" 3.3 PSF
||3/16" x 1-1/2" Bar, 1-3/16" o.c. 11.0 PSF
||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.
||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.
||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.
||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.
||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.