Wednesday, August 27, 2014
Santoprene™ 121-73W175
Units 
ExxonMobil Chemical - Thermoplastic Vulcanizate
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General Information
Product Description
A soft, black, UV resistant thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. This material combines good physical properties and chemical resistance, and is designed for thin wall or complex profile extrusion applications. This grade of Santoprene TPV is shear-dependent and can be processed on conventional thermoplastics equipment for extrusion, thermoforming or vacuum forming. It is polyolefin based and recyclable within the manufacturing stream.
General  
Material Status 
  • Commercial: Active
Availability 
  • Africa & Middle East
  • Asia Pacific
  • Europe
  • Latin America
  • North America
Features 
  • Controlled Die Swell
  • Good Chemical Resistance
  • Good Melt Strength
  • Good UV Resistance
  • Good Weather Resistance
  • Low Compression Set
  • Low Die Swell
  • Ozone Resistant
  • Recyclable Material
Uses 
  • Automotive Applications
  • Automotive Exterior Trim
  • Outdoor Applications
Agency Ratings 
  • EU Annex XVII of Regulation (EC) No 1907/2006
RoHS Compliance 
  • RoHS Compliant
UL File Number 
  • E80017
Appearance 
  • Black
Forms 
  • Pellets
Processing Method 
  • Coextrusion
  • Extrusion
  • Profile Extrusion
  • Sheet Extrusion
  • Thermoforming
  • Vacuum Forming
ASTM & ISO Properties 1
Physical
Nominal Value
Unit
Test Method
Specific Gravity
0.970
 
ASTM D792
Density
0.970
g/cm³
ISO 1183
Elastomers
Nominal Value
Unit
Test Method
Tensile Stress - Across Flow (100% Strain, 73°F)
508
psi
ASTM D412
Tensile Stress - Across Flow (100% Strain, 73°F)
508
psi
ISO 37
Tensile Strength - Across Flow (Break, 73°F)
1280
psi
ASTM D412
Tensile Stress - Across Flow (Break, 73°F)
1280
psi
ISO 37
Tensile Elongation - Across Flow (Break, 73°F)
460
%
ASTM D412
Tensile Elongation - Across Flow (Break, 73°F)
460
%
ISO 37
Tear Strength - Across Flow  2 (73°F)
137
lbf/in
ASTM D624
Tear Strength - Across Flow  3 (73°F)
140
lbf/in
ISO 34-1
Compression Set 4
    ASTM D395B
158°F, 22 hr
33
%
 
257°F, 70 hr
42
%
 
Compression Set 5
    ISO 815
158°F, 22 hr
33
%
 
257°F, 70 hr
42
%
 
Hardness
Nominal Value
Unit
Test Method
Shore Hardness (Shore A, 15 sec, 73°F, 0.0787 in)
78
 
ISO 868
Thermal
Nominal Value
Unit
Test Method
Brittleness Temperature
-76.0
°F
ASTM D746
Brittleness Temperature
-76.0
°F
ISO 812
Aging
Nominal Value
Unit
Test Method
Change in Tensile Strength in Air (302°F, 168 hr)
-9.0
%
ASTM D573
Change in Tensile Strength in Air (302°F, 168 hr)
-9.0
%
ISO 188
Change in Ultimate Elongation in Air (302°F, 168 hr)
-2.0
%
ASTM D573
Change in Tensile Strain at Break in Air (302°F, 168 hr)
-2.0
%
ISO 188
Change in Durometer Hardness in Air (Shore A, 302°F, 168 hr)
5.0
 
ASTM D573
Change in Shore Hardness in Air (Shore A, 302°F, 168 hr)
5.0
 
ISO 188
Change in Tensile Strength (257°F, 70 hr, in IRM 903 Oil)
-39
%
ASTM D471
Change in Tensile Stress (257°F, 70 hr, in IRM 903 Oil)
-39
%
ISO 1817
Change in Ultimate Elongation (257°F, 70 hr, in IRM 903 Oil)
-54
%
ASTM D471
Change in Tensile Strain at Break (257°F, 70 hr, in IRM 903 Oil)
-54
%
ISO 1817
Change in Volume (257°F, 70 hr, in IRM 903 Oil)
79
%
ASTM D471
Change in Volume (257°F, 70 hr, in IRM 903 Oil)
79
%
ISO 1817
Continuous Upper Temperature Resistance (1008 hr)
275
°F
SAE J2236
Electrical
Nominal Value
Unit
Test Method
Dielectric Strength (73°F, 0.0800 in)
690
V/mil
ASTM D149
Dielectric Constant (73°F, 0.0780 in)
2.70
 
ASTM D150
Dielectric Constant (73°F, 0.0780 in)
2.70
 
IEC 60250
Flammability
Nominal Value
Unit
Test Method
Flame Rating
    UL 94
0.0394 in
HB
 
 
0.0591 in
HB
 
 
0.118 in
HB
 
 
Additional Information
Where applicable, test results based on fan gated, injection molded plaques.
Tensile strength, elongation and tensile stress are measured across the flow direction - ISO type 1, ASTM die C.
Compression set at 25% deflection.
Legal Statement
For detailed Product Stewardship information, please contact Customer Service.

This product, including the product name, shall not be used or tested in any medical application without the prior written acknowledgement of ExxonMobil Chemical as to the intended use.
Processing Information
Extrusion
Nominal Value
Unit
 
Drying Temperature
180
°F
 
Drying Time
3.0
hr
 
Melt Temperature
350 to 400
°F
 
Die Temperature
400
°F
 
Back Pressure
725 to 2900
psi
 
Extrusion Notes
Santoprene TPV is incompatible with acetal and PVC. For more information regarding processing and mold design, please consult our Extrusion Guide.
Notes
1Typical properties: these are not to be construed as specifications.
2Die C
3Method Bb, Angle (Nicked)
4Type 1
5Type A
 
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