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KetaSpire® KT-851

Polyetheretherketone

Supplied by Solvay Specialty Polymers

The technical datasheet with complete property values for KetaSpire® KT-851 is available to members of the Prospector Plastics Database.
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Product Description
KetaSpire KT-851 resin is a depth-filtered grade of polyetheretherketone (PEEK) specially designed for use in extruded wire insulation coating. KT-851 offers the needed balance of properties and processability for applying thin insulation coatings onto copper or other conducting wire using a continuous extrusion process to achieve a robust insulation coating that is capable of withstanding the harsh use environments of many industrial applications.

KetaSpire PEEK is produced to the highest industry standards and is characterized by a distinct combination of properties, which include excellent chemical resistance to organics, acids and bases, best in class fatigue resistance, excellent wear resistance, ease of melt processing and high purity.

The pellets are supplied with a very light dusting (0.01%) of calcium stearate to aid with conveying through single screw extruder-based processing equipment.

Natural: KetaSpire KT-851 NT
General  
Material Status 
  • Commercial: Active
Availability 
  • Africa & Middle East
  • Asia Pacific
  • Europe
  • North America
  • South America
Additive 
  • Lubricant
Features 
  • Ductile
  • Fatigue Resistant
  • Flame Retardant
  • Good Chemical Resistance
  • Good Dimensional Stability
  • Good Impact Resistance
  • High Heat Resistance
Uses 
  • Electrical/Electronic Applications
  • Oil/Gas Applications
  • Wire Jacketing
RoHS Compliance 
Appearance 
  • Natural Color
Forms 
  • Pellets
Processing Method 
  • Injection Molding
  • Machining
  • Profile Extrusion
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792
Melt Mass-Flow Rate (MFR) (400°C/2.16 kg)
g/10 min
 ASTM D1238
Molding Shrinkage
     ASTM D955
Flow
in/in
  
Across Flow
in/in
  
Water Absorption (24 hr)
%
 ASTM D570
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
      
-- 2
psi
 ASTM D638
--
psi
 ISO 527-2/1A/1
Tensile Stress
      
Yield
psi
 ISO 527-2/1A/50
--
psi
 ASTM D638
Tensile Elongation
      
Yield 3
%
 ASTM D638
Yield
%
 ISO 527-2/1A/50
Break 3
%
 ASTM D638
Break
%
 ISO 527-2/1A/50
Flexural Modulus
      
--
psi
 ASTM D790
--
psi
 ISO 178
Flexural Strength
      
--
psi
 ASTM D790
--
psi
 ISO 178
Compressive Strength
psi
 ASTM D695
Shear Strength
psi
 ASTM D732
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact
      
--
ft·lb/in
 ASTM D256
--
ft·lb/in²
 ISO 180
Unnotched Izod Impact
 
 ASTM D4812, ISO 180
Hardness
Nominal Value
Unit
Test Method
Rockwell Hardness (M-Scale)
 
 ASTM D785
Durometer Hardness (Shore D, 1 sec)
 
 ASTM D2240
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load 4 (264 psi, Annealed, 0.126 in)
°F
 ASTM D648
Glass Transition Temperature (DSC)
°F
 ASTM D3418
Peak Melting Temperature
°F
 ASTM D3418
CLTE - Flow (-58 to 122°F)
in/in/°F
 ASTM E831
Specific Heat
     DSC
122°F
Btu/lb/°F
  
392°F
Btu/lb/°F
  
Thermal Conductivity
Btu·in/hr/ft²/°F
 ASTM E831
Electrical
Nominal Value
Unit
Test Method
Dielectric Strength (0.00197 in, Amorphous)
V/mil
 ASTM D149
Fill Analysis
Nominal Value
Unit
Test Method
Melt Viscosity (752°F, 1000 sec^-1)
Pa·s
 ASTM D3835
Additional Information
Standard Packaging and Labeling
  • KetaSpire resins are packaged in polyethylene buckets or cardboard boxes depending upon the order size. Individual packages will be plainly marked with the product, color, lot number, and net weight.
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: KetaSpire® KT-851, KetaSpire KT851, KetaSpire® , KetaSpire, KetaSpireKT851, KT, KT-851, KT851, KT:851, KT/851, KT+851, KT_851, KT 851, Polyetheretherketone, PEEK, Polyaryletherketone, PAEK, Solvay Specialty, 851KT
Features
Features may also be described by the following terms: Good Chemical Resistance, Chemical Resistant, Good Dimensional Stability, Dimensionally Stable, High Heat Resistance, Good Impact Resistance.
Uses
Uses may also be described by the following terms: Electrical Applications, Electronic Applications, Electrical/Electronic Applications, Electrical Sector, Oil Applications, Gas Applications.
Injection
Nominal Value
Unit
 
Drying Temperature
°F
  
Drying Time
hr
  
Rear Temperature
°F
  
Middle Temperature
°F
  
Front Temperature
°F
  
Nozzle Temperature
°F
  
Mold Temperature
°F
  
Injection Rate
 
  
Screw Compression Ratio
 
  
Injection Notes
Drying
  • KetaSpire resins must be dried completely prior to melt processing. Incomplete drying will result in defects in the formed part ranging from surface streaks to severe bubbling. Pellets can be dried on trays in a circulating air oven or in desiccating hopper dryer. Drying conditions recommended are 4 hours at 150°C (300°F) .

Injection Molding
  • KetaSpire resins can be readily injection molded in most screw injection machines. A general purpose screw with a compression ratio in the range of 2.5 - 3.5 : 1 is recommended, as is minimum back pressure. Injection speeds should be as fast as possible, consistent with part appearance requirements. Mold temperatures in the range of 175°C to 205°C (350°F to 400°F) are suggested. Recommended starting point barrel temperatures are shown in the following table.
Notes
1Typical properties: these are not to be construed as specifications.
20.039 in/min
32.0 in/min
42 hours at 200°C
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.