Zircotec is launching what is said to be the first flexible ceramic heat shield material. The patent-pending Zircoflex product offers low-cost thermal protection of engine components in automotive applications - as well as other non-automotive applications - and is easily applied to the material surface. The product is supplied in a roll, and is claimed to revolutionise the use of ceramic materials for heat protection.
Zircotec sales director Peter Whyman says: "Zircoflex has the potential to transform the use of ceramic heat protection. For the first time these coatings can be installed in-line to parts and assemblies during manufacture, even in high-volume applications, without disrupting production flow. We are continuing our research into flexible ceramic coatings and plan to produce an expanded range of Zircoflex foils using a range of alternative substrates."
Zircotec's plasma sprayed Thermohold-based coatings are already used for the protection of metallic and composite components in an increasing number of applications. Applied to the material surface in a lightweight layer, Zircotec's engineered coatings can reduce surface temperatures by up to 33 per cent. A limitation of the process has, until now, been the need to treat parts directly using 14000K plasma sprays.
Now Zircotec has developed a new technology that allows its coatings to be supplied as a thin aluminium-backed foil. The new material is lightweight at only 460g/m2 and only 0.25mm thick. Zircoflex foil is, however, robust and easy to handle. It can be cut and installed by hand or machine, and is easily fixed in place using mechanical fasteners or high-temperature adhesives, allowing it to be integrated directly into conventional production or maintenance operations.
Ceramic coatings are naturally brittle, which has limited their use up until now to rigid substrates. The new Zircoflex product, which is the culmination of more than five years' intensive research and materials science, uses a new technology in which the ceramic material is sprayed in the form of thousands of individual 'platelets' on the surface of the foil. While they are close-packed to provide comprehensive heat protection, this structure allows the foil to be bent and manipulated to suit different geometries, and it can even be folded tightly through 180 degrees without damaging the thermal barrier. Zircoflex can be purchased online at a unit price of £69.70 per 58cm x 90cm sheet.
For more information, visit www.zircotec.com
