out for s
out for space
New Material
The struc­ture of rat­tan is com­par­able to that of a bundle of tubes. The rat­tan palm can trans­port wa­ter up to 160 meters through its long ca­pil­lar­ies. out for space takes ad­vant­age of this nat­ur­al prop­erty for its one-of-a-kind, pat­en­ted tech­no­logy. When the ca­pil­lar­ies are in­jec­ted with vari­ous bulk­ing agents,
rat­tan is trans­formed from a
lim­ited-use wood in­to an in­nov­at­ive wood-based ma­ter­i­al of
the fu­ture.
The new ma­ter­i­al, karuun, is firmer, harder, weath­er-­res­ist­ant and even has a new char­ac­ter­-
ist­ic col­or­a­tion. karuun presents an al­tern­at­ive to oth­er more
ex­pens­ive ma­ter­i­als, with ap­plic­a­tions in mul­tiple areas.
karuun® color –
Superior Aesthetic
Aside from the struc­tur­al en­hance­ments, the new treat­ment tech­no­logy also gives karuun the ad­vant­age in terms of ap­pear­ance and main­ten­ance. The char­ac­ter­ist­ic col­or­ation of karuun col­or runs throughout the pro­file of the ma­ter­i­al and cre­ates a whole new aes­thet­ic. The im­preg­na­tion of the ma­ter­i­al through ca­pil­lary in­jec­tions al­lows karuun col­or to be used as a base ma­teri­al for vari­ous semi-fin­ished products such as wick­er, ven­eer or boards.
Sur­face im­per­fec­tions can simply be sanded away and through the in­teg­ra­tion of oils and waxes in the dye it is pos­sible to both fin­ish and pro­tect the sur­face in the same pro­duc­tion step.
out for space’s process treats the material from the surface through to its core.

karuun col­or exists in three base materials.

karuun proof is the first natural rattan material with a long term weather resistance.

karuun solid enables new formal scopes of design
karuun® solid –
Combining Qualities
of Rattan and
With its im­proved ma­ter­i­al prop­er­ties karuun sol­id is com­par­able with bent­wood. A clear ad­vant­age of pro­cess­ing raw rat­tan is its high elasti­city and bend­abil­ity. These prop­er­ties al­low rat­tan to be shaped with very little force or en­ergy. For man­u­fac­tur­ing
fur­niture, however,
rat­tan’s elasti­city is a dis­ad­vant­age be­cause of the ef­fect it has on the strength and stiff­ness of the ma­ter­i­al. For ex­ample, the ex­tra struts needed to in­crease the struc­tur­al sta­bil­ity of a chair made of rat­tan de­tract from its aes­thet­ic
out for space solves this prob­lem by treat­ing karuun sol­id with com­postable bulk­ing agents. In this way the nat­ur­al flex­ib­il­ity and elasti­city of rat­tan is
re­tained while at the same time lend­ing
rat­tan the strength of
a hard wood. karuun
there­fore cre­ates new pos­sib­il­it­ies not only for fur­niture design.
karuun® proof –
Upgrading Rattan to
This great step for­ward against weath­er­ing makes karuun ap­peal­ing for out­door use. Rat­tan is by nature not suited to out­door use due to its poor weath­er­ing, lead­ing the way for a dom­in­ance of plastic in the do­main of out­door fur­nish­ing. However, the hy­dro­phobic bulk­ing agent in karuun proof greatly im­proves the weath­er­ing of rat­tan so it can be used out­side. The bulk­ing agent fills the pores of the rat­tan
wood, turn­ing what would oth­er­wise be a breed­ing ground for mold and mois­ture in­to the back­bone of the ma­ter­i­al. Out­door fur­ni­ture made from karuun proof could last just as long as oth­er out­door ac­cessor­ies made
from trop­ic­al woods, without the eco­lo­gic­al con­se­quences of the de­for­est­a­tion of our rain­forests.
Future Prospects –
A Bright and Successful
Path Lies Ahead
The ma­ter­i­al im­prove­ments lent to rat­tan
by re­fine­ment are com­par­able to those of
pro­cessed bam­boo. Bam­boo has be­come an im­port­ant wood-work­ing ma­ter­i­al and is now used in areas in which it was pre­vi­ously deemed un­suit­able.
karuun has the same po­ten­tial to be­come rel­ev­ant as a new and in­nov­at­ive nat­ur­al wood ma­ter­i­al. With con­tin­ued ma­ter­i­al
re­search, the de­vel­op­ment of man­u­fac­tur­ing pro­cesses and a
de­gree of cre­ativ­ity, karuun has a bright and suc­cess­ful fu­ture ahead of it.
It is also of great im­port­ance to out for space that rat­tan once again be­comes a steady source of
in­come for the nat­ive pop­u­la­tions of the areas where it is pro­duced. Long-term re­for­est­ation pro­jects along with en­vir­on­ment­al
ini­ti­at­ives not only
con­trib­ute to rat­tan pro­duc­tion but will also lead to a sus­tain­able fu­ture.
out for space is look­ing for­ward to co­oper­a­tion with part­ners who wish to sup­port the fur­ther de­vel­op­ment of karuun as a valu­able, in­tel­li­gent and fu­tur­ist­ic
ma­ter­i­al. If we’ve awoken your in­terest please contact us via
e­mail or facebook.
kc Collection
karuun color
kc is the first col­lec­tion by out
for space
made from the new ma­ter­i­al, karuun col­or. The
col­lec­tion fea­tures five products, all of which cen­ter around the unique prop­er­ties of this new ma­ter­i­al. The col­lec­tion’s design is char­ac­ter­ized by a clear and re­duced lan­guage of form as
well as the un­usu­al use of rat­tan as wooden boards. Products from the kc col­lec­tion are there­fore not only eas­ily dis­tin­guish­able from tra­di­tion­al rat­tan products, but de­b­ut­ing the use of karuun col­or, also rep­res­ent an in­nov­a­tion in product design.
kc rest

Bench with 100 % linen
and cotton cushions
Get It
kc time

Wall clock in several designs
with powder-coated hands
Get It
kc hang

Coat reck with metal
hanger eye
Get It
kc play

Geometric toy blocks
in all kc colors
Get It
kc shine

LED lamp, a transparent electric
cable and steel wire hanging
Get It
Dark Grey
Light Grey
Bright Sky
kc colors

All products are available in
various color versions
out for space is an in­ter­disci­plin­ary team of engin­eers and de­sign­ers who share the vis­ion of com­bin­ing re­search with aes­thet­ics to cre­ate a whole new way of de­vel­op­ing and pro­du­cing products.
Pas­sion­ate about head­ing out­doors out for space is (re)dis-­
cov­er­ing nat­ur­al ma­ter­i­als, us­ing them to cre­ate in­nov­a­tion and sus­tain­ab­il­ity.
Approach and
Profile – the Rediscovery
of Rattan
At the heart of the design pro­cess is the ma­ter­i­al. In­spired by nature and tra­di­tion­al man­u­fac­tur­ing tech­niques out for space de­vel­ops in­nov­at­ive pro­duc­tion pro­cesses and products that are good not only for con­sumers but also for the en­vir­on­ment. out for space sets the bar high for qual­ity and cre­ativ­ity, from the very first steps of pro­duc­tion right through to the fi­nal in the be­lief that in today’s world trans­par­ency and sus­tain­abil­ity should be a mat­ter of course. Just as im­port­ant as the joy of de­vel­op­ing and shap­ing a new cre­ation is the so­cial re­spons­ib­il­ity that comes with it!
out for space first took the stage with the re­dis­cov­ery of nat­ur­al rat­tan. Rat­tan is a type of palm nat­ive mainly to trop­ic­al areas in Africa, Asia and Lat­in Amer­ica, which provide an ideal warm and hu­mid cli­mate.
Through vis­its to In­done­sia, out for space be­came aware of this neg­lected ma­ter­i­al
and soon de­veloped a vis­ion for re­an­im­at­ing its use.
In Asia rat­tan is tra­di­tion­ally used as a ma­ter­i­al for fur­niture and is the foun­da­tion for many pieces. With the ad­vent of ma­ter­i­als such as poly­r­at­tan, however, nat­ur­al rat­tan has sadly lost some of its former pop­ular­ity and sig­ni­fic­ance. Es­pe­cially in Europe, the prop­er­ties, pro­duc­tion pro­cesses and po­ten­tial sus­tain­ab­il­ity of the ma­ter­i­al are al­most for­got­ten today.
For out for space, however, rat­tan is a source of un­lim­ited po­ten­tial and far more uses than formerly ima­gined.
In co­oper­a­tion with
the In­nov­a­tion Cen­ter Lichten­fels and the
Uni­versity of Ap­plied Sci­ences Coburg
, out for space has de­veloped a pat­en­ted re­fin­ing pro­cess that lends rat­tan a char­ac­ter­ist­ic new col­or­a­tion and re­solves the sig­ni­fic­ant tech­nic­al dis­ad­vant­ages of raw un­pro­cessed rat­tan.
out for space first premiered ma­ter­i­al samples at the imm co­logne 2014 and was af­ter­wards in­vited by the In­done­sian Min­istry of In­dustry to the world rat­tan pro­duc­tion cen­ter in Cire­bon as well as to the In­done­sian Rat­tan In­nov­a­tion Cen­ter, PIRNas, in Palu.
Us­ing the know­ledge picked up in In­done­sia, out for space was then able to de­vel­op a ma­chine that en­ables the re­fine­ment of rat­tan in seri­al pro­duc­tion, ad­ap­ted to the loc­al and re­gion­al con­di­tions.
The name of this pro­cessed ma­ter­i­al is karuun, it opens up the use of rat­tan in pre­vi­ously in­con­ceiv­able ways. karuun car­ries the prom­ise of a
new, en­vir­on­ment­ally-friendly ma­ter­i­al for high qual­ity products.
out for space’s spon­sors in­clude the Fed­er­al Ger­man Gov­ern­ment, the Fed­er­al Min­istry for Eco­nom­ic Af­fairs and En­ergy as well as the European So­cial Fund.
out for space combines research with aesthetics.

In Indonesia the processing of rattan has a long tradition.

The processing technique allows the injection of various bulking agents.

During a visit to Indonesia out for space got an insight into rattan cultivation.
Rattan – a Proven
Material with a Long
Qualities – Benefits
and Drawbacks of
Sustainability –
an Almost Forgotten
Rat­tan or Rotan (ind.-malay) grows al­most ex­clus­ively in rain­forests and 80 % of glob­al rat­tan pro­duc­tion is in In­done­sia. The most im­port­ant genus is nat­ive to Africa and Asia and is called Cal­amus. With 374 dif­fer­ent spe­cies, Cal­amus is the most di­verse palm.
It is widely un­known that cer­tain spe­cies of rat­tan grow to a dia­met­er of 100 mil­li­meters and can reach a total length of 160 meters, mak­ing it one of the longest plants on the plan­et! Thin rat­tan called ped­dig is tra­di­tion­ally used for wick­er­work and thick­er rods are used for fur­niture frames.
The wood of the rat­tan palm is unique in its in­tern­al struc­ture. Un­like oth­er woods, the ca­pil­lar­ies of rat­tan are long single tubes which travel the length of the en­tire plant and sup­ply it with wa­ter. Due to this, rat­tan is very elast­ic when made wet and even more so when ex­posed to heat or steam. This makes fur­ther pro­cessing ef­fi­cient and gives rat­tan ad­vant­age­ous prop­er­ties such as its light weight, elasti­city and high bend­ab­il­ity.
On the oth­er hand, it isn’t pos­sible to treat the sur­face of un­pro­cessed rat­tan with con­ven­tion­al meth­ods be­cause the or­tho­sili­cic acid in its skin pre­vents ad­he­sion.
If the out­er lay­er is re­moved, sur­face treat­ment such as paint­ing and dye­ing is pos­sible, but even then the col­or will fade with time and there is only lim­ited pro­tec­tion against weath­er­ing and us­age.
This is due to the mate­ri­al’s large pores, which make it sus­cept­ible to mois­ture and mold. The elast­ic and supple wood lent to rat­tan by its poros­ity also lim­its its field of ap­plic­a­tion. Even stronger rat­tan rods with dia­met­ers of over 30 milli­meters, used as chair legs for ex­ample, need ex­tra struts to give them ad­di­tion­al sta­bil­ity.
Rat­tan grows very quickly and has sig­ni­fic­ant ad­vant­ages over oth­er types of wood. For ex­ample, rat­tan nat­ur­ally forms a sym­bi­ot­ic re­la­tion­ship with its neigh­bor­ing plants in the rain­forest, such as the cen­tur­ies old Mer­anti Tree. The rain­forest is es­sen­tial for rat­tan: this means that cul­tiv­at­ing rat­tan would pro­mote rain­forest pre­ser­va­tion or even re­for­est­a­tion as op­posed to the ex­pan­sion of mono­cul­tures in­to the rain­forest. Pur­chas­ing rat­tan products in­dir­ectly con­trib­utes to the health and pre­ser­va­tion our world’s rain­forests.
The raw material rattan has to be dried before it can be further proacessed.

After drying, rattan is processed into different semi-finished products.

Peeled rattan in particular can be applied universally.

The skin of the rattan can be used for wickerwork.

With its spikes rattan climbs up trees.
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Supported by EXIST Business Start-Up Grant and SIGNO – protection of ideas for commercial use

Support programs of the Federal Ministry of Economy and Energy, co-financed by the European Social Fund

In collaboration with the University of Applied Sciences Biberach

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out for space GmbH
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+49 7563 913 8402 F

Represented by
Julian Reuter and
Peter Kraft

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