Hitting the (Vehicle) Headlines
Ether-based Foam from FoamPartner
The FoamPartner Group, based in Fritz Nauer AG, Wolfhausen, Germany, has developed a foam with very low emissions for use in vehicle headliner constructions.
The foams, marketed under the name OBoSky, use a patented ether prepolymer process, which is claimed to combine the advantages of ester-based technical polyurethane foams with those of ether-based materials. They have a very uniform, fine-pored structure with very high-quality surfaces, which can be flame or adhesive laminated, and are suitable for textiles with low areal weight.
The ether-based prepolymer process not only achieves very good hydrolysis resistance and consistently high mechanical properties, but, according to the manufacturer, also offers significantly lower VOC and fogging (FOG) values compared to purely ester-based foams. In the VOC and FOG tests acc. to VDA 278 and VDA 270, OBoSky thus lies significantly below the threshold values of Daimler AG’s DBL 5450 supply specification for PU-based soft foams.
High Elongation and Good Elastic Recovery
The foams are particularly suitable for use as headliners in vehicles. Because of their high elongation and good elastic recovery, they can also be used for other applications in the vehicle interior requiring a “soft feel.” OBoSky is available as roll stock in different bulk densities as well as with or without flameproofing as per FMVSS 302. The manufacturing process permits the production of 120 m block foam lengths, resulting in 50% fewer bonded seams compared to the customary 60-meter blocks.
Fritz Nauer AG
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