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The extensive expertise at Autins, has led to the development of a number of multi-layer products that are targeted to specific applications. These combine different products to achieve a particular acoustic target, create a suitable aesthetic finish or to provide a product applicable to a set environment. Examples include the combination of the Autins Neptune nonwoven with a heavy layer barrier to create a mass-spring decoupler that offers over 1kg per square metre weight saving compared with competitor products.