Polyketone Exablend® POK M330A

Description

Exablend® POK M330A is an aliphatic, fully crystalline polyketone synthesized from carbon monoxide, ethylene and propylene. It is a general-purpose injection-molding grade with an MFR of ~30 g/10 min, developed for engineering parts in contact with aggressive media and under cyclic loading.

The key distinguishing feature of polyketone compared with PA6/PA66 is virtually zero water absorption (≤ 0.5 % versus 7 % for PA66 at saturation). Part dimensions and mechanical properties remain stable regardless of ambient humidity and contact with hot water.

POK M330A is positioned as a direct replacement for POM (acetal) in tribological assemblies where enhanced chemical resistance matters, and as a replacement for PA in systems in contact with fuel, coolants and glycols. Service temperature: up to 100 °C continuous, up to 130 °C short-term. Not intended for continuous service above 130 °C — for high-temperature applications consider PPS or PPA.

Key advantages

• Virtually zero water absorption — no loss of stiffness or dimensional stability in humid environments
• High resistance to fuel, diesel, glycols, brake fluids, oils, acids and alkalis
• Low coefficient of friction and wear — self-lubricating, a direct replacement for POM in gears and bushings
• Retains impact strength at temperatures down to −40 °C
• Hydrolytic resistance in hot water and steam up to 100 °C — suitable for plumbing fittings
• Fast crystallization — short molding cycle, thin-walled parts
• High environmental stress cracking resistance (ESCR) — resistant to cracking in contact with detergents

Applications

• Hot-water plumbing fittings: fittings, connectors, mixer bodies, manifold elements for underfloor heating systems
• Automotive fuel and cooling systems: fuel line connectors, pump elements, filter housings, engine cooling system fittings
• Power tools and drives: gears, bushings, guides — a direct replacement for POM with better chemical resistance
• Pumps for aggressive liquids: housings, impellers, shafts of metering and circulation pumps
• Household appliances in contact with water and steam: components of coffee machines, steam generators, dishwashers and washing machines
• Industrial packaging for aggressive media: canisters, containers, lids with seals for chemical products

The stated values are measured by in-house methods close to the corresponding ISO and GOST standards. The information is for reference only and does not constitute an official batch technical data sheet. Please request the TDS and MSDS for a specific batch before industrial use.