NOV 2018


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NOVEMBER 2018 32 CompositesWorld FEATURE / Long-Haul Trucks Composites and aerodynamics Composites have been employed in trailer skirts, tails and other aerodynamic components for some time, but advanced configurations like Wabash's recently introduced Ventix DRX improve aerodynamic performance and fuel efficiency. Source | Wabash National Among long-haul trailer manufacturers, Great Dane has one of the more well-established histories with composites. e company offers Wingolite composite/wood hybrid floor from Prolam (Cap- Saint-Ignace, QC, CN) as optional equipment on its Champion dry vans. PunctureGuard, the company's glass/polypropylene (PP) composite laminate, was introduced in the early 2000s. Used to protect interior trailer surfaces in applications such as side wall lining and scuff band, PunctureGuard continues to be a popular, premium option on Champion vans, and is standard equipment serving as lining in the company's Everest refrigerated van (or "reefer"). e popularity of PunctureGuard prompted Great Dane in 2011 to launch a sister company, Impact Guard LLC (Leetsdale, PA, US), to sell similarly designed and manufactured composite panels into other trailer applications, as well as new markets, such as building and construction. Great Dane's Everest reefer line may also be fitted with er- moGuard insulation material, which the company introduced to the market about a decade ago. ermoGuard laminate includes a metal barrier layer surrounded by layers of glass/polypropylene (PP) composite, which is produced by heated belt forming of unidirectional glass and PP film. e laminate seals the van's insulation foam to reduce its degradation rate, to keep it from degassing and to prevent water intrusion. (Water absorption into a reefer's insulated walls can also add hundreds of pounds to the trailer's empty weight, in addition to degrading insula- tion performance.) Vans fitted with ermoGuard lose less than A N N I V E R S A R Y 0 2 HPC Charter Advertiser P.O. Box 1366 Norwich Rd. Plainfield, CT. 06374 Office: 860.564.7817 Cell: 860.608.4696 Fax: 860.564.1535 Adhesive Prepregs for Composite Manufacturers Lightning Strike Prepregs Quality System AS9100D Certified WWW.PREPREGS.COM Strikeguard ™ is a conductive epoxy-based lightning strike system with in- or out-of-autoclave capabilities and can be cured between 250°F and 350°F.

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