European Union researchers have devised a way of reducing the weight of noise-insulation materials in cars without damaging their sound-damping capability. EU research network Eureka says the €4 million ($5.9 million) France-led project, known as E!2411 ERTAC, has discovered that by layering compressed felt with a low-density felt, the weight of sound insulation can be cut 50% without degrading performance. In addition, using foam-textile waste to manufacture parts requiring elasticity ...

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