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Sinterit, a leader in the low-cost selective laser sintering (SLS) market, has just launched polypropylene (PP) powder for its 3D printing platform. The new material, which has the well-known advantage of being the first material for compact SLS that is inherently waterproof, will create new opportunities for functional prototypes in the automotive industry and beyond.
The polypropylene powder is the latest addition to the growing SLS material portfolio from Sinterit and is characterized by good chemical resistance, low density and low water absorption. As Sinterit points out, it is the only material available for compact SLS 3D printing that is both airtight and waterproof without the need for special sealing. (For example, TPE can be made waterproof with a special coating.)
These properties will have advantages in many areas, but especially in the automotive sector, where PP is widely used. With specific applications in mind, Sinterit identifies several, including functional prototypes for air filter housings, electronic housings, and more. “Our PP is suitable for the functional prototyping of the lines in the air inlet, in the fan hoods and in the electronic housings,” adds Konrad Glowacki, co-founder of Sinterit and Chief Business Development Officer. “These applications are now available because of the standard usage and properties of PP.”
Beyond the automotive industry, Sinterit’s new PP powder can be used by plastic parts manufacturers, many of whom are already using polypropylene for raw material products. Sinterit’s SLS platform and new material will make it easier (and faster) for these manufacturers to prototype new parts and meet short-run production for end products.
Research laboratories can also take advantage of the latest Sinterit product launch and use the polypropylene powder to develop and prototype custom parts such as adapters, junctions and sensor housings for pneumatic systems. The material is unique in Sinterit’s portfolio as it can withstand the pressure of normal pneumatic systems and withstand moisture. In addition, the low density of the powder is ideal for making parts with buoyancy.
The PP powder for the Lisa and Lisa PRO systems from Sinterit is now available in a 6 kg format. The gray colored material has a tensile strength of 19.3 MPa and an elongation at break of 44%. It complements seven other SLS materials in the Polish company’s portfolio, including PA12 Smooth, PA11 Onyx, PA11 ESD, FLEXA Gray, FLEXA Soft, FLEXA Bright and TPE.