Evonik Vestamid Care ME62 PA12 Granule Virgin Polyamide Resin Medical Grade PA12 Elastomer All Color

PA12 Vestamid Care ME62 grades represent a range of flexible polyether block amide (PEBA) resins of varying hardness for processing via extrusion or injection molding. VESTAMID Care ME materials are available as standard and bonding-modified grades.

PA12 Vestamid Care ME62 standard grades have a proven history in catheter applications. Due to their broad range of flexibility, these grades are used in different parts of catheter constructions - from the distal end requiring low modulus for non-traumatic insertion to the proximal end needing high modulus for force and torque transmission.

The PA elastomers are block copolymers consisting of PA 12 segments and polyether segments (polyether block amides or PEBAs). Products rich in PA 12 have the basic properties of that polymer. With increasing polyether content the elastomer character becomes more marked: The polymers are more flexible and have higher cold impact strength.

Compared with competitive thermoplastic elastomers, VESTAMID® E compounds are distinguished particularly by the following properties:

• Low density
• Good resistance to chemicals and solvents
• Ease of processing, coloring, and overmolding
• Very easily decorated by heat transfer printing
• Excellent low-temperature impact strength
• Hardness and flexibility can be varied over wide ranges
• High elasticity and good resilience
• Only slight temperature dependence of mechanical properties
• Free from volatile or leaching plasticizers

VESTAMID® E compounds are suitable for precision injection moldings, such as noiseless gears and functional elements of sports shoes, as well as for high-performance extrusion components like paint spray hoses, vacuum brake booster lines, and high-quality decorative films. We can provide you with unstabilized or heat- and light-stabilized material, according to your requirements. Transparent and high-gloss molding compounds are also available.

Evonik's VESTAMID® L compounds comprise a large number of different products tailored precisely to the requirements of processors and end users.

The properties of semicrystalline polyamides are determined by the concentration of amide groups in the macromolecule. This is lower in PA 12 than in all other commercially available polyamides, which accounts for its special properties:

• Minimal water absorption: molded parts show almost no dimensional changes with variation in atmospheric humidity
• Extraordinarily high impact resistance and Charpy notched impact strength, even well below freezing point
• Good to excellent resistance to greases, oils, fuels, hydraulic fluids, and many solvents as well as to salt solutions and other chemicals
• Excellent resistance to stress cracking, even for metal parts encapsulated by injection molding or embedded into the plastic
• Excellent abrasion resistance
• Low dry sliding friction coefficient as compared with steel, polybutylene terephthalate, polyacetal, and other materials
• Noise and vibration damping properties
• Excellent resistance to fatigue caused by frequent load change
• Easy processability

Thanks to these properties, the applications of VESTAMID® L range from sophisticated line systems for motor vehicles, through large-volume pipes as are used in crude oil production, core insulation in the cable industry, and catheters in medical technology, to precision injection-molded parts like impellers and control-valve housings in machine and equipment manufacture.

• High flexibility & elasticity
• Good rebound properties
• High impact resistance
• High dimensional stability
• High chemical resistance
• High toughness
• Easy processability & colorability
• Free of volatile plasticizers