Ultramid® A4H

Ultramid® A4H by BASF is a medium viscosity, unreinforced, polyamide 66 (PA 66) with high impact strength even at dry state. It possesses good elastic properties, high dimensional stability, high creep strength and excellent sliding friction properties. This grade provides good toughness at low temperatures, high rigidity, high mechanical strength, stiffness, thermal stability, very good impact strength and good processability. It exhibits outstanding resistance to chemicals, hot lubricants and hot water, fuels, hydraulic fluids and coolants, refrigerants, dyes, paints, cleaners, degreasing agents, aliphatic and aromatic hydrocarbons and many other solvents. It is resistant to high heat aging, corrosion, to aqueous solutions of salts and alkalis and to stress-crack formation compared to many amorphous plastics. It is processed by injection molding. Ultramid® A4H is suitable for highly stressed parts such as bearing cages, gear wheels, coil formers and cable connectors. It is compliant with EC Regulation 1907/2006 (REACH), RohS directive 2011/65/EC and WEEE directive 2002/96/EC.