Flexible Rubber cork

Nitrile rubber is synthetic rubber. it can be used to bond cork to make a flexible sheet
like Klinger NI27 Rubber Bonded Cork
Klinger rubber bonded cork is bonded with synthetic rubber, it provides the compressibility of cork with the resilience of rubber. This material has high mechanical strength.
Manufactured from high quality cork oak bonded with synthetic rubber
Rubber cork sheets are made from cork aggregate and different rubber mixes, neoprene, silicone and polyurethane. The final product is incredibly elastic, durable and resistant against grease, oil, fuels, gases and many other chemical substances. It is used as a seal material for cars, agricultural machines and industry seals. Read more.

But you can get expanded cork boards that don’t use synthetic binders.
Expanded insulation cork sheets are natural, balanced and unbeatable cork products that, with this special type of agglomerated cork, do not contain polyurethane or any other fillers or additives. Due to the high temperature processing treatment it expands (similarly to popcorn) and suberin that is releases during is a natural adhesive that binds the expanding grains. This way we produce a wonderful, natural and sustainable material that offers a perfect vibroisolation, thermal insulation and acoustic isolation.
Find them here.

Heres some more information on expanded cork

and this about using cork in the green home.

Some notes on insulation

The green van. You can see all our related posts here Thermal conductivity, often denoted by the greek symbol λ ,measures …
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