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Arkema PEKK
Metton LMR M1539 Liquid Molding Resin
Categories: Polymer; Thermoset; Polydicyclopentadiene (PDCPD)

Material Notes: Metton LMR is a tough and durable engineering plastic material used to produce large or thick molded parts for many diversified applications. The Metton LMR reaction injection molding process can provide large parts in low pressure molds with the mechanical property performance similar to injection molded engineering thermoplastics. The combination of Metton LMR’s process and material capabilities result in a new design freedom for replacing traditional materials such as metal, wood and fiberglass.

Injection molded engineering thermoplastics have a similar benefit package for smaller parts. Small parts for Metton LMR are in the 8 to 10 ft² (1 m²) range which is the upper end for cost and size capability for standard injection molding. In addition, Metton LMR parts do not require identical part geometry for multi-cavity molds.

Metton LMR is a family of lightly cross linked olefinic thermoset polymers based on polydicyclopentadiene (PDCPD) with mechanical property performance attributes similar to engineering thermoplastics. In the Metton LMR molding process, two low - viscosity DCPD liquid streams - one containing an activator (A Component) and the other a catalyst (B Component) - are impingement mixed at a 1:1 ratio and injected at near room temperature into a closed mold. The resulting exothermic reaction (heat generating) creates a fully polymerized part in less than 60 seconds. Button to button cycle times are generally 4 to 6 minutes depending upon size and geometry

Key Words: Metton LMR
Vendors:
Available Properties
  • Density, ASTM D792
  • Linear Mold Shrinkage
  • Tensile Strength, Yield, ASTM D638
  • Elongation at Yield, ASTM D638
  • Tensile Modulus, ASTM D638
  • Flexural Yield Strength, 5% strain; ASTM D790
  • Flexural Modulus, ASTM D790
  • Poissons Ratio
  • Shear Modulus, Calculated
  • Izod Impact, Notched, ASTM D256
  • Izod Impact, Notched
  • Deflection Temperature at 1.8 MPa (264 psi), ASTM D648
  • Flammability, UL94
  
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Manufacturer Notes:
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Category Notes
Plastic

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Ensinger PEI
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