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PEISheetNatural

Ultem 1000 (PEI) - 0.375" 12 x 12 Natural Sheet

About this product

Ultem 1000 (PEI) sheet is a Natural Polyetherimide material supplied in a 0.375" thick, 12" length format, ideal for precision-machined electrical, aerospace, and high-performance industrial components. Known for its high heat deflection, excellent strength, and reliable dimensional stability, this PEI sheet performs well in demanding environments where standard plastics fall short.

Ultem 1000 (PEI) - 0.375" 12 x 12 Natural SheetUltem 1000 (PEI) - 0.375" 12 x 12 Natural Sheet - view 2Ultem 1000 (PEI) - 0.375" 12 x 12 Natural Sheet - view 3
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This PEI sheet measures 0.375″ thick, 12″ × 12″, finished in natural. In stock — price $136.85 per Each.

SpecificationValueTolerance
Shape / FormSheet
Thickness0.375″Standard
Width12″Standard
Length12″Standard
ColorNatural
Specifications

Resin

Ultem 1000

Shape

Sheet

Thickness

0.375 in

Width

12 in

Length

12 in

Color

Natural

Unit of Measure

Each

Other PEI sizes

← All PEIstock & specs

Price

$136.85 / Each

In Stock
21010 available
Available at 11 locations

Ships direct from the manufacturer — under $500 of it per order includes a $150 small-order charge

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Quick Info
ResinUltem 1000
CategoryPEI
FormSheet
Thickness0.375 in
Width12 in
Length12 in

Typical Properties — Ultem 1000 (PEI) - 0.375" 12 x 12 Natural Sheet

Pei
General
PropertyTest MethodUnitValue
DensityD792lb/in³ / g/cm³0.046 / 1.2
Water absorption (24 / 96 h immersion @ 73°F)ASTM D570mg / %20/41 / 0.26/0.54
Water absorption (Saturation in air @ 73°F, 50% RH)ASTM D570%0.75
Water absorption (Saturation in water @ 73°F)ASTM D570%1.35
Flammability rating (UL 94, 3 / 6 mm thickness)UL 94V-0/V-0
Mechanical
PropertyTest MethodUnitValue
Tensile strength (At yield / break)ASTM D638psi / MPa15,250 / 105
Tensile strain at breakASTM D638%10
Tensile modulusASTM D638psi / MPa493,000 / 3,300
Compressive stress (At 10% nominal strain)ASTM D695psi / MPa22,000 / 150
Rockwell hardnessASTM D785R126
Operating Environment
PropertyTest MethodUnitValue
Thermal conductivity (@ 73°F)ASTM C177Btu·in/ft²·h·°F / W/m·K1.5 / 0.21
Coefficient of thermal expansion (Avg. 73 – 140°F)ASTM D696μin/in/°F / μm/m/°C25 / 45
Coefficient of thermal expansion (Avg. 73 – 212°F)ASTM D696μin/in/°F / μm/m/°C25 / 45
Heat deflection temperature (264 psi (Method A))ASTM D648°F / °C375 / 190
Max service temperature (Short-term)°F / °C390 / 195
Max service temperature (Continuous (5,000 / 20,000 h))°F / °C340 / 170
Electrical
PropertyTest MethodUnitValue
Dielectric strengthASTM D149V/mil / kV/mm685 / 26
Volume resistivityASTM D257Ω·cm>10¹⁴
Surface resistivityASTM D257Ω>10¹³

Typical properties are provided for reference only. Values may vary based on processing conditions, form factor, and lot. Contact Ready Plastics for certified test data.

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