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Grade: RT18
Formula: PMP TPX®
Form: Granule
Material: Polymethylpentene (PMP, TPX®)
Commodity: Polymers
Nominal Granule Size:
3mm
RT18 PMP Granules are high-modulus, heat-resistant materials with excellent release characteristics and low moisture absorption. Extensively used in cosmetics, electronics, and food industries, RT18 is ideal for LED mold production, packaging containers, and precision release films. Applications include caps and tubes, FPC film backing, and synthetic leather release paper. Its reliable surface behavior and optical clarity enhance its value in photonics and analytical instrument design. RT18 supports advanced manufacturing workflows and plays a vital role in the evolution of heat-resistant polymers in science and high-tech production. This material is trusted for its performance consistency, offering engineers and researchers a dependable solution in environments where thermal and chemical stability are critical. Its ability to withstand high processing temperatures and its compatibility with modern manufacturing techniques make it a standout choice across multiple sectors. TPX™ materials like this grade continue to drive progress in lightweight polymers, replacing heavier alternatives without compromising performance.
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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MX004 PMP Rod Grade: MX004
Formula: TPX®
Diameter: 50mm
Length: 1000mm
Colour: Natural
UOM Code: 026-650-87
eachStarting at $199.00
Discounts applied for volume purchases -
VICTREX® PEEK 450G PEEK Granules Grade: VICTREX® PEEK 450G
Formula: PEEK
Weight: 200g
Type: Injection Moulding
CAS Number: 29658-26-2
UOM Code: 040-981-68
eachStarting at $182.00
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RT18 PMP Rod Grade: RT18
Formula: TPX®
Diameter: 6.35mm
Length: 1000mm
Colour: Natural
UOM Code: 009-728-62
eachStarting at $89.00
Discounts applied for volume purchases -
Yttria-stabilized Zirconia Granules Formula: ZrO₂/Y₂O₃
Nominal Granule Size: 2mm
Weight: 500g
Stabilised With: 8% Yttria
CAS Number: 114168-16-0
UOM Code: 254-458-97
eachStarting at $176.00
Discounts applied for volume purchases -
each
Starting at $104.00
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 $335.00
Discounts applied for volume purchases
