Polypropylene (pronounced poly-pro-pea-lean) was discovered by Italian chemist Giulio Natta in 1954 for which he later received a Nobel Prize.
Obtained from propylene gas, a major by product of oil refining, no other known plastic in the world has its qualities which make it so suitable for chair seating. It is the lightest known plastic and it is not affected by boiling water and can be sterilised by super-heated steam in an autoclave for 15 minutes at 121 °C.
Polypropylene has an amazing ‘integral hinge’ strength which means that when extruded as thin plastic it can be flexed millions of times and actually get stronger because of the re-alignment of the molecular structure. Furthermore, this wonder plastic withstands such chemicals as sulphuric and nitric acids, caustic soda, ammonia as well as being impervious to household liquids such as beer, milk, vinegar, wine, etc.
Sebel has developed a range of Polypropylene specific manufacturing technologies and is a world leader in utilising its many advantages in furniture design.
We were perhaps the first furniture company to utilise Polypropylene in a range of ‘one-piece’ moulded chairs in 1969 (the Integra), replacing the traditional wooden chairs in schools. Sebel has always been ahead of the competition. Our continuous improvement and innovations ensures you are always getting the best value in the market.