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Essentium PCTG is a member of the copolyester family, chemically similar to PETG. Our PCTG is an easy-to-use material with incredible surface finish and excellent impact resistance. This robust material can be printed in open air and over a large temperature range. Compared to PETG, our PCTG has a similar strength and stiffness, while offering superior impact strength and chemical resistance.

Polymer Name: Thermoplastic Polyester

End Uses: Molds/Dies/Tools, Prosthetics

Density: 1230.0 - 1230.0 kg/m³

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Technologies

Features & Benefits

KEY FEATURES

• Good general purpose material
• Excellent toughness
• Good solvent resistance
• High optical clarity
• Easy-to-print

Applications & Uses

Markets
Plastics & Elastomers End Uses
APPLICATIONS INCLUDE

• Jigs and fixtures
• Orthotics and prosthetic check sockets
• Prototypes
• Consumer goods
• Part trays

Properties

Physical Form
Material Specific Properties
ValueUnitsTest Method / Conditions
Glass Transistion Temperature76˚CASTM D3418
HDT (A 1.8 MPa)64˚CISO 75
HDT (B 0.45 MPa)76˚CISO 75
Melting Point202˚CASTM D3418
Specific Gravity1.23g/cm3ASTM D792

Technical Details & Test Data

MECHANICAL PROPERTIES
Metric Test Method Print Orientation
XY 45/45 YX ZX
Ultimate Tensile Strength, MPa ISO 527-2 44.0 (0.2) 40.4 (1.1) 43.5 (0.7) 45.0 (1.6)
Tensile Modulus, GPa ISO 527-2 1.81 (0.03) 1.71 (0.04) 1.72 (0.02) 1.86 (0.09)
Strain at Break, % ISO 527-2 130 (1) 2.6 (1.6) 4.9 (0.5) 3.9 (0.4)
Flexural Strength, MPa ISO 178 72.7 (0.9) 70.1 (0.7) 63.1 (2.5) 71.5 (1.1)
Flexural Modulus, GPa ISO 178 1.78 (0.01) 1.69 (0.02) 1.57 (0.04) 1.72 (0.02)
Notched Izod Impact Strength, kJ/m2 ISO 180/A 7.5 (0.5) 5.4 (1.2) 6.1 (1.4) 4.7 (0.8)

 

Storage & Handling

MATERIAL HANDLING AND DRYING

Essentium PCTG is a hygroscopic thermoplastic and will absorb moisture from humid air. Keep the material in the vacuum sealed packaging\ until you are ready to print with it. PCTG filament should always be fed to the printer in a dry container and stored in a dry cabinet. If the material does absorb more than 600ppm moisture, it should be dried in a low dew point (< -40˚C) oven or vacuum oven at 65 – 70˚C for 4 – 8 hours. Avoid touching filament with bare fingers or introducing oils to the filament prior to printing.

RECOMMENDED HSE PRINT SETTINGS

0.4mm Hozzle

Extrusion Width, mm 0.35 – 0.5
Layer Height, mm 0.15 –0.25
Print Speed, mm/s 50 – 500
Infill, % 15 – 75
Hozzle Temperature, ˚C 235 – 390
Bed Temperature, ˚C 70 – 80
IR Temperature, ˚C 20 – 40
Fan Speed, % 0 – 40

0.8mm Hozzle

Extrusion Width, mm 0.7 – 0.9
Layer Height, mm 0.3 –0.35
Print Speed, mm/s 20 – 220
Infill, % 15 – 75
Hozzle Temperature, ˚C 280 – 360
Bed Temperature, ˚C 70 – 80
IR Temperature, ˚C 20 – 40
Fan Speed, %

 RECOMMENDED FDM PRINT SETTINGS

Nozzle Temperature, ºC 250 – 270
Bed Temperature, ºC 70 – 80
Print Speed, mm/s 40 – 80
First Layer Speed, mm/s 20 – 40
Fan Speed, % 25 – 50
Bed Material G-10/FR4 or Glass
Bed Adhesion Method Dimafix® or Magigoo® HT
Infill Density, % <75