In the manufacture of continuous thread spring mattresses from Flex, there are two options:
Multielástic NXT®, improved system of classical Multielástic®. The housing is heat treated through an infrared process to achieve the highest durability. With this process, the heat is transferred evenly heating both core and outer wire. More homogeneous, elastic, adaptable, durable housings are obtained. And maximum effectiveness of anti-noise and anti-oxidation treatment.