Rat­tan’s structure is compara­ble to a bundle of tubes. The rat­tan palm can transport wa­ter up to 200 me­t­res th­rough its long capillaries. When the capillaries are injected wi­th various bulking agents, rat­tan is trans­formed from a wood wi­th limited use into a ver­satile, innovative mate­ri­al. Karuun is fir­mer, and har­der, and even has a co­lou­rati­on.

Since the col­our is not applied to the surface but actually injected through the cap­illar­ies, the material can be processed into semi-fin­ished prod­ucts such as weav­ing ma­te­rials, ve­neers and boards. Surface imper­fections can be sanded away and seams are nearly invis­ible due to the uniform na­ture of the fibers. A simple surface fin­ish­ing and main­tenance is ensured thanks to mixed additives such as nat­ural waxes and oils into the paint.

One of the advantages of rattan is its high degree of bendability. By treating it with heat and steam, boards and rods can be eas­ily shaped with very lit­tle force or energy.

The coloured prod­ucts are not suit­able for out­door use.