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Concept II Slats:
In 1995/96 4-Star Trailers designed and was awarded the patent on a revolutionary slat designed to shed water and reduce the amount of visible welds and heat distortion.

Prior to Concept II, aluminum slats were extruded in corrugated shapes with one side of the corrugation welded to the side posts of a trailer. All manufacturers using extruded aluminum slats utilized this style of slat to construct the outer walls of their trailers. The welds on these slats are grossly visible in the form of melt-through and heat distortion. Corrugated slats are difficult to make water tight and trailers built from them suffer from water leaks unless meticulous attention is given to sealing each slat at its ends and at each joint where they stack one atop another. At each end of a corrugated slat is a series of voids where the corrugations alternate. ...Read more



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