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ULTEM™ resin CRS5311 (Americas)

Technical Datasheet | Supplied by SABIC
ULTEM™ resin CRS5311 (Americas) by SABIC is an amorphous, flame retarded polyetherimide (PEI) reinforced with 30% glass fiber. Provides low shrinkage, good metal adhesion, high strength, high heat resistance and good dimensional stability. It offers low smoke & toxicity, good mechanicals in broad temperature range and low creep sensitivity. It exhibits easy flow, high stiffness and hydrolytic stability. Shows enhanced chemical resistance to strong acids, bases, aromatics, and ketones. Suitable for processing by injection molding. ULTEM™ resin CRS5311 (Americas) is used in aircraft interiors, defense, fossil, mass transportation (heavy truck, rail, bus), automotive interiors & under the hood, industrial, hydrocarbon and energy. Complies with UL 94 V-0 & UL 94 5VA flame rating and ECO regulations.
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ULTEM™ resin CRS5311 (Americas)
Technical Datasheet | Supplied by SABIC
REQUEST A SAMPLE ORIGINAL DATASHEET CONTACT SUPPLIER
Product Type
PEI (Polyether Imide) > PEI
Product Status
COMMERCIAL
Geographical Availability
North America, South and Central America, Western Europe
Applications/ Recommended for
  • Aerospace/ Aircrafts > Interior parts
  • Automotive
  • Renewable energy equipment
  • Transportation > Buses
  • Transportation > Heavy Trucks
  • Transportation > Railways
  • Injection molding - thermoplastics
Labels/Agency Rating
UL 94 V-0, 5VA Flame Rating
Key Features
  • Acid Resistant
  • Amorphous
  • Base Resistant
  • Chemical resistance, Good
  • Dimensional stability, Good
  • Filled, Glass Fiber
  • Flame retarded
  • Flow, Good
  • Heat Resistance, High
  • Hydrolytically Stable
  • Mechanical Properties, Good
  • Shrinkage, Low
  • Stiffness, High
  • Strength, High

ULTEM™ resin CRS5311 (Americas) Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Specific Gravity
1.52
ASTM D792
Linear Mold Shrinkage, Flow
0.2 - 0.4 %
(At 3.2mm) 
SABIC Method
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)
4 g/10 min
(At 337°C, 6.6 kgf) 
ASTM D1238

ULTEM™ resin CRS5311 (Americas) Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Drying Temperature
150 °C
Shot to Cylinder Size
40 - 60 %
Drying Time
4 - 6 hr
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