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Grade: RT18
Formula: TPX®
Form: Granules
Material: Polymethylpentene (PMP/TPX™)
Commodity: Polymers
Nominal Granule Size:
3mm
Goodfellow’s RT18 PMP Granules are made of polymethylpentene, a thermoplastic polymer. They are characterized by high impact strength, low density, and good chemical resistance. The granules are well suited to injection molding applications that require precision parts with tight tolerances. They also work well for extrusion processes to create continuous profiles or films. As part of Goodfellow’s range of thermoplastic polymer granules, RT18 PMP Granules enable the production of durable, lightweight components across industrial sectors.
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good-Fair |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Good |
| Aromatic hydrocarbons | Fair-Poor |
| Greases and Oils | Good-Fair |
| Halogenated Hydrocarbons | Fair-Poor |
| Halogens | Fair-Poor |
| Ketones | Good-Fair |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.12 |
| Dissipation factor @ 1kHz | 0.0002 |
| Volume resistivity( Ohmcm ) | >10¹⁶ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | HB |
| Refractive index | 1.463 |
| Resistance to Ultra-violet | Poor |
| Limiting oxygen index( % ) | 17 |
| Water absorption - over 24 hours( % ) | 0.01 |
| Density( gcm⁻³ ) | 0.835 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | R85 |
| Elongation at break( % ) | 15 |
| Tensile modulus( GPa ) | 1.5 |
| Izod impact strength( J m⁻¹ ) | 49 |
| Tensile strength( MPa ) | 25.5 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 100 |
| Heat-deflection temperature - 1.8MPa( C ) | 40 |
| Lower working temperature( C ) | 20 |
| Upper working temperature( C ) | 75-115 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 2000 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.17@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 117 |
Other Customers Purchased
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RT18 PMP Film Grade: RT18
Formula: TPX®
Thickness: 3mm
Length 1: 100mm
Length 2: 100mm
Production Method: Compression Moulded
Transparency: Transparent
Colour: Clear
UOM Code: 751-453-42
eachStarting at €106.69
Discounts applied for volume purchases -
MX004 PMP Film Grade: MX004
Formula: TPX®
Thickness: 0.05mm
Length 1: 100mm
Length 2: 100mm
Surface Finish: Matt/Gloss
Colour: Natural
UOM Code: 444-469-12
eachStarting at €78.69
Discounts applied for volume purchases -
PMP Film Formula: TPX®
Thickness: 28mm
Length 1: 100mm
Length 2: 100mm
Production Method: Extruded
UOM Code: 776-863-19
eachStarting at €123.22
Discounts applied for volume purchases -
RT18 PMP Rod Grade: RT18
Formula: TPX®
Diameter: 6.35mm
Length: 1000mm
Colour: Natural
UOM Code: 009-728-62
eachStarting at €63.00
Discounts applied for volume purchases -
MX002 PMP Film Grade: MX002
Formula: TPX®
Thickness: 5mm
Length 1: 344mm
Length 2: 344mm
Production Method: Compression Moulded
Colour: Natural
UOM Code: 165-747-11
eachStarting at €114.03
Discounts applied for volume purchases -
RT31 PMP Rod Grade: RT31
Formula: TPX®
Diameter: 50mm
Length: 1000mm
Colour: Natural
UOM Code: 146-912-81
eachStarting at €239.41
Discounts applied for volume purchases
