An unfoldable modular living unit includes one or more folding modules having a bottom, pitched roof elements forming the roof and the side walls, and two opposing facades, front and back. The cam-type apparatus is lockable to allow locking an adjusted position of the cam-type apparatus. M usable subbands are initially arranged to form multiple groups of subbands, with each group including a different subset of the usable subbands. In another embodiment, the present invention relates to injectible cyanoacrylate-functionalized polyisobutylene polymer compounds. 5 microns or larger are removed from the liquid.