Question Foam on laptop coolers. What's the correct naming and where to find replacement?

yegor99

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Oct 8, 2017
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Hello,
Recently I've been cleaning and testing old laptops and discovered some kind of foam strips glued to cooling systems. The foam disintegrated the moment I've touch it)
While on Lenovo G500 it served as cushion between radiator and bottom case, on the Acer Aspire One it was used as a wall for airflow channel.

Who knows what is the correct name of this "foam"? Where can I find strips or sheets of similar foam (that can sustain high temperatures at applied zone) so I can cut the right size and glue it back? (If you have an aliexpress link, please share)