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Polyether Sulfone (PES or PESU) is a high-temperature aromatic sulfone polymer that exhibits exceptional thermal, mechanical, and chemical resistance properties. PES is part of the PAES (Poly Aryl Ether Sulfone) family of polymers, which includes PSU, PES, and PPSU. ThermaX PES is an amorphous polymer and has excellent dimensional stability and creep resistance.
PES has higher temperature resistance and toughness than Ultem 1010, offering the ability to print parts with higher mechanical properties at elevated temperature.


Very high thermal properties superior to Ultem 1010
Excellent dimensional stability with low creep sensitivity, low and uniform coefficient of thermal expansion, and highly reproducible part-to-part dimensions.
High Environmental Stress Crack Resistance (ESCR)
Sterilization capable, including EtO gas, radiation, steam autoclaving, plasma, dry heat and cold sterilization
Exceptional strength and modulus, even at elevated temperatures
Resists most common automotive fluids including gasoline, antifreeze, transmission fluids, motor oils, power steering fluid, windshield washer fluid (ESCR, 24 hrs, 100C)
Inherently flame retardant with low smoke evolution and low smoke toxicity

Packed with your favorite products, detailed information, and essential technical data. Whether your brand new to 3-D printing or need to find a specific filament that best fits your project, our catalog has everything you need in one easy-to-navigate place!

Explore key attributes like tensile strength, flexural strength, glass transition, and fire testing performance. Whether you're prototyping, creating functional parts, or printing detailed models, these property graphs will help you find the perfect filament for your project.

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Polyether Sulfone (PES or PESU) is a high-temperature aromatic sulfone polymer that exhibits exceptional thermal, mechanical, and chemical resistance properties. PES is part of the PAES (Poly Aryl Ether Sulfone) family of polymers, which includes PSU, PES, and PPSU. ThermaX PES is an amorphous polymer and has excellent dimensional stability and creep resistance.
PES has higher temperature resistance and toughness than Ultem 1010, offering the ability to print parts with higher mechanical properties at elevated temperature.


Very high thermal properties superior to Ultem 1010
Excellent dimensional stability with low creep sensitivity, low and uniform coefficient of thermal expansion, and highly reproducible part-to-part dimensions.
High Environmental Stress Crack Resistance (ESCR)
Sterilization capable, including EtO gas, radiation, steam autoclaving, plasma, dry heat and cold sterilization
Exceptional strength and modulus, even at elevated temperatures
Resists most common automotive fluids including gasoline, antifreeze, transmission fluids, motor oils, power steering fluid, windshield washer fluid (ESCR, 24 hrs, 100C)
Inherently flame retardant with low smoke evolution and low smoke toxicity

Packed with your favorite products, detailed information, and essential technical data. Whether your brand new to 3-D printing or need to find a specific filament that best fits your project, our catalog has everything you need in one easy-to-navigate place!

Explore key attributes like tensile strength, flexural strength, glass transition, and fire testing performance. Whether you're prototyping, creating functional parts, or printing detailed models, these property graphs will help you find the perfect filament for your project.

No reviews yet. Be the first to share your experience!
Category: View all 3D Printer Accessories
Fill out the form below and our team will get back to you with bulk pricing.
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