Ready Plastics
PEISheetBlack

Ultem 1000 (PEI) - 0.375" 12 x 12 Black Sheet - 0.375 in × 12 in × 12 in Sheet

0.375 in × 12 in × 12 in Sheet

Ultem 1000 (PEI) - 0.375" 12 x 12 Black SheetUltem 1000 (PEI) - 0.375" 12 x 12 Black Sheet - view 2Ultem 1000 (PEI) - 0.375" 12 x 12 Black Sheet - view 3
Same-day shipping available
Quality certified
Expert support

This PEI sheet measures 0.375″ thick, 12″ × 12″, finished in black. In stock — price $136.80 per Each.

SpecificationValueTolerance
Shape / FormSheet
Thickness0.375″Standard
Width12″Standard
Length12″Standard
ColorBlack
About This Product

Ultem 1000 (PEI) Black Sheet in 0.375" thick, 12" length stock is made from Polyetherimide, a high-performance thermoplastic known for excellent heat deflection and dependable dimensional stability. This 12" x 12" black PEI sheet is a strong choice for electrical, aerospace, and precision-machined parts that require consistent performance at elevated temperatures.

Specifications

Resin

Ultem 1000

Shape

Sheet

Thickness

0.375 in

Width

12 in

Length

12 in

Color

Black

Unit of Measure

Each

Other PEI sizes

← All PEIstock & specs

Price

$136.80 / Each

In Stock
21010 available
Available at 11 locations

Minimum order: 7 units

View PEI Details
Ships same day if ordered by 2pm
Quality guaranteed
Quick Info
ResinUltem 1000
CategoryPEI
FormSheet
Thickness0.375 in
Width12 in
Length12 in

Typical Properties — Ultem 1000 (PEI) - 0.375" 12 x 12 Black 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.

Related Products

Ultem 1000 (PEI) - 2.000" dia x 120 Black Rod

Rod • 120 in

Ultem 1000 (PEI) - 0.062" 24 x 36 Natural Sheet

Sheet • 0.062 in × 24 in × 36 in

Ultem 1000 (PEI) - 1.000" dia x 84 Black Rod

Rod • 84 in

Ultem 1000 (PEI) - 0.625" 24 x 36 Natural Sheet

Sheet • 0.625 in × 24 in × 36 in