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TPX™ RT18 (RT18XB)

Technical Datasheet | Supplied by Mitsui Chemicals
TPX™ RT18 (RT18XB) by Mitsui Chemicals is a high modulus, low density, heat resistant polymethylpentene. It boasts superior releasability and is one of the lightest polymer materials among thermoplastic plastics. Possesses excellent transparency equivalent to glass and acrylic as well as high melting point and can be used at high temperature. Offers excellent chemical & steam resistance and high durability against acid, alkali and alcohol. Recommended for injection molding and is also applicable for extrusion processing by T-Die casting, profile, mandrel, pipe and fiber spinning. Exhibits gas permeability, low refractive index, low dielectric property and high insulation properties equivalent to fluororesin. Possible applications include food containers, release film for FPC, rubber hoses and release paper for synthetic leather. It is also suitable for animal cage, resin modification, LED mold, experimental apparatuses and hollow fiber. TPX™ RT18 (RT18XB) is certified for food packaging materials by Japan Hygienic Olefin and Styrene Plastics Association, United States Code of Federal Regulations Title 21 and EU Regulation (EU) 10/2011.
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TPX™ RT18 (RT18XB)
Technical Datasheet | Supplied by Mitsui Chemicals
REQUEST A SAMPLE ORIGINAL DATASHEET CONTACT SUPPLIER
Product Type
PMP (Polymethylpentene) > PMP
Physical Form
Pellets
Product Status
COMMERCIAL
Applications/ Recommended for
  • Packaging
  • Pipes, Hoses & Fittings
  • Fibers/ Textiles/ Carpets > Artificial leathers
  • Optics > LED (Light-Emitting Diode)
  • Extrusion > Profiles
  • Injection molding - thermoplastics
  • Extrusion > Pipes
  • Extrusion > Fibres
  • Extrusion > Films (cast)
Food contact approval
Yes
Labels/Agency Rating
Japan Hygienic Olefin and Styrene Plastics Association,
United States Code of Federal Regulations Title 21,
EU Regulation (EU) 10/2011
Key Features
  • Acid Resistant
  • Alcohol Resistant
  • Alkali Resistant
  • Chemical resistance, High
  • Density, Low
  • Durable
  • Food contact approved
  • Gas Permeability, High
  • Modulus, High
  • Mold Release, Good
  • Transparency, High
  • Heat Resistance, High

TPX™ RT18 (RT18XB) Properties

Thermal Properties

Value & Unit
Test Condition
Test Method
Melting Point
232 °C
(DSC) 
MCI Method
Vicat Softening Temperature
167 °C
(Heat Speed: 50°C/hr, Applied Load: 10N, 4mm Test Piece) 
ISO 306
Deflection Temperature at 0.46 MPa (66 psi)
86 °C
(Heat Speed: 120°C/hr, 4mm Test Piece) 
ISO 75

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