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Refrigerated vehicles are relied on to carry all manner of perishable goods including food and medical supplies. As haulage companies strive to maximise productivity and identify efficiencies, the use of high performance refrigerated truck bodies can provide the winning edge in this competitive sector.

The choice of insulation used within the truck body is critical to its performance and three key factors need to be considered;

Consistent thermal performance
Insulation materials must be capable of maintaining their thermal performance throughout the lifetime of the vehicle.
Moisture can be problematic, so the pick-up of body elements must be minimised.

Mechanical strength
The product must be durable and ready to cope with the rigours of carrying cargo and the subsequent high mechanical forces. It will need to support heavy loads during transit and withstand repeated loading and unloading.

Low weight
As the cost of fuel continues to rise and people are increasingly concerned about the environment it is important to identify methods of reducing vehicle weight to improve fuel efficiency.

Most manufacturers produce composite panels with a core of insulating material, with additional structural support provided by outer layers. These easy to install and repair panels are used to construct the walls, roof and floor of the truck body.

Extruded polystyrene insulation (XPS) boards are frequently selected for use as the core, including XENERGY RTM; RTM and HD300 by Dow, a new generation of insulation offering good thermal insulation, low moisture pick-up, high mechanical strength and an appropriate weight to strength ratio. XENERGY RTM; offers high resistance to water vapour diffusion and is suited to high-stress applications, withstanding heavy and dynamic cargo loads. The boards are planed and grooved to facilitate the even distribution of adhesive across the board surface during the adhesion process.

XENERGY RTM; RTM and HD300 build on the impressive legacy of STYROFOAM; which has been used in composite panels for more than 40 years. Developed in the 1940s by Dow, continuous product development combined with improved production technology has resulted in a broad range of STYROFOAM; products for a wide variety of demanding applications including refrigerated trucks, pipe section insulation and motor-homes.

XENERGY RTM; RTM and HD300 have the best weight to strength ratio, requiring a 30% lower density than polyurethane (PU) core materials to achieve the same compressive strength, providing for fuel savings over the lifetime of the vehicle due the truck body’s reduced weight. With its impressive Compressive Strength at 10% of 400 KPa (according to EN 826), XENERGY RTM; RTM is the product of choice for most refrigerated truck bodies, and heavy duty XENERGY RTM; HD300 can provide 700 KPa without a significant increase in weight.

Infra-red attenuator particles to scatter and reflect heat radiation are incorporated within XENERGY RTM; boards, which are produced using a zero-ozone depletion potential (ODP) blowing agent, improving insulation performance and opening the door for further developments to reduce the global warming potential (GWP) of the XPS.

If you need more information, please contact FKLTECH@dow.com

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