Unfilled Pure Resin PEI 1000 Sheet

Unfilled PEI sheet has good toughness. The dielectric loss factor (tanδ) of PEI resin is very small, and it still performs excellently at high frequencies, with very stable dielectric strength.

It can achieve UL94 V-0 level without adding flame retardants, with a high oxygen index (about 47%), low smoke emission and low toxicity during combustion, ensuring extremely high safety

Material:	100% virgin resin PEI
Color:	NATURE
MOQ:	1PCS
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Model:
PEI 1000
Brand:
PRES

Product Description

|ULTEM™ 1000 PEI Sheet | High-Temp & Flame Retardant Plastic

ULTEM™ 1000 (Polyetherimide) is a high-performance amorphous thermoplastic renowned for its exceptional balance of heat resistance, mechanical strength, and inherent flame retardancy. It serves as a lightweight, cost-effective alternative to metal and ceramic in the most demanding environments.

Extreme Heat Resistance

Continuous use at 170°C. Short-term exposure up to 200°C. Ideal for under-hood and aerospace applications.

Dimensional Stability

Low coefficient of thermal expansion (5.6 × 10⁻⁵). Maintains tight tolerances even during high-temp machining.

️ UL94 V-0 Flame Retardant

Inherently flame resistant without additives. Meets FAR 25.853 aviation standards.

⚡ Superior Electrical Insulation

Stable dielectric constant (Dk ~3.0) across a wide frequency range. Perfect for 5G and RF parts.

✔️ Metal Replacement: Reduce component weight by up to 50%.
✔️ Sterilizable: Withstands repeated autoclave (steam) sterilization.
✔️ Easy to Machine: Excellent machinability for complex CNC parts.

| PEI Sheet Applications & Use Cases

Thanks to its unique combination of high heat resistance, flame retardancy, and chemical stability, ULTEM™ 1000 PEI sheets are widely used as stock shapes for machining precision components across demanding industries.

Medical & Healthcare

Surgical Trays & Instrument Handles: Replaces stainless steel due to its ability to withstand repeated autoclave sterilization cycles (steam, chemical, radiation) without degrading.
Diagnostic Equipment Components: Used for MRI/NMR scanner parts requiring high dimensional stability and non-magnetic properties.
Dental & Orthodontic Devices: Ideal for sterilizable tools and fixtures due to biocompatibility (ISO 10993).

⚡ Electronics & Semiconductors

High-Frequency Connectors & Sockets:
The stable dielectric constant (Dk ~3.0) makes it perfect for 5G infrastructure and RF applications.
Test Sockets & Burn-in Boards:
Withstands high temperatures during chip testing without warping.
Wafer Carriers & Handling Tools:
High purity and chemical resistance make it suitable for cleanroom environments.

✈️ Aerospace & Aviation

Cabin Interior Components:
Meets FAR 25.853 flammability requirements (UL94 V-0), used for seat parts, panels, and clips.
Aircraft Ducting & Manifolds:
Lightweight alternative to metal, capable of handling hot air from engine bleed systems.
Structural Brackets:
High strength-to-weight ratio allows for weight reduction in non-critical structures.

Automotive & Industrial

Under-the-Hood Sensors:
Operates reliably near engines where temperatures exceed 170°C.
Fuel System Components:
Excellent resistance to automotive fuels and alcohols.
Industrial Fixtures & Jigs:
Used in manufacturing lines for holding parts during high-temp painting or coating processes.

|PEI 1000 Sheet Size Table

⚠️ Why is there a dimensional tolerance?

To accommodate subsequent CNC machining and finishing, our PEI sheets are supplied with a slight positive thickness tolerance. Please contact us for exact mill run dimensions if precision is critical.

Standard Stock Thickness Options
Range 1 (mm)	Range 2 (mm)	Range 3 (mm)	Range 4 (mm)
1.0	6.0	25	60
1.5	8.0	30	80
2.0	10	35	100
3.0	15	40	120
4.0	17	45	140
5.0	20	50	160

*Standard sheet size: 1000mm x 3000mm. Custom cutting available.

| PEI 1000 Sheets Data Sheet

Technical Specifications (ULTEM 1000)
Property	Units	Test Method	Value
Physical Properties
Density	g/cm³	ASTM D792	1.28
Water Absorption (24 hrs)	%	ASTM D570	0.25
Water Absorption (Saturation)	%	ASTM D570	1.25
Mechanical Properties
Tensile Strength	MPa	ISO 527	110
Tensile Modulus	MPa	ISO 527	3200
Flexural Strength	MPa	ISO 178	160
Flexural Modulus	GPa	ISO 178	3.3
Hardness, Rockwell M	-	ASTM D785	109
Thermal Properties
Glass Transition Temp (Tg)	°C	D3418	210 - 217
Heat Deflection Temp (HDT)	°C	ASTM D648	220
Coefficient of Linear Expansion	cm/cm/°C	ASTM D696	5.6 × 10⁻⁵
Thermal Conductivity	W/m·K	ISO 8302	0.22
Flammability Rating	-	UL 94	V-0
Electrical Properties
Volume Resistivity	Ω·cm	IEC 60093	1.0 × 10⊃1;⁵
Dielectric Constant (@1 GHz)	-	-	3.01