Types of TPI

Tpi Types

There is a total of 3 different types of TPI available based on thermal properties.
•  TPI White – Maximum Service Temperature 181°F
•  TPI Amber – Maximum Service Temperature 340°F
•  TPI Tan – Maximum Service Temperature 480°F

TPI (Thermoplastic Isolator): Properties & Various Grades
TPI WhiteTPI AmberTPI Tan
Property ValueASTM TestImperialImperialImperial
DensityD792 0.0516 lb/in30.0458 lb/in30.047 lb/in3
Tensile StrengthD63811,000 psi17,000 psi16,000 psi
Tensile Modulus of ElasticityD638450 ksi500 ksi630 ksi
Elongation (At Break)D63830%60%40%
Flexural Modulus of ElasticityD790450 ksi500 ksi600 ksi
Flexural StrengthD79013 ksi20 ksi25 ksi
Compressive StressD69516 ksi22 ksi20 ksi
Coefficient of FrictionQTM 550070.250.420.32
IZOD Impact (Notched)D2561 ft-lb/in0.5 ft-lb/in 0.6 ft-lb/in
Rockwell Hardness D785M 88M 115M 105
Maximum Service Temperature(Long Term)181ºF340ºF480ºF
Melting PointD3418347ºF410ºF644ºF
Coefficient of Linear ExpansionE83147 µin/in/ºF31 µin/in/ºF-
Flammability RatingUL94HBV-0V--0
Electric StrengthD149450 V/mil830 V/mil480 V/mil

 

The tables below show a comparison of TPI versus a leading competitor.

Comparison between PT&P’s TPI White VS Leading Competitor
Property ValueASTM TestTPI - WhiteCompetitor
DensityD792 0.0516 lb/in30.0509 lb/in3
Tensile StrengthD638 11,000 psi 9,400 psi
Tensile Modulus of ElasticityD638 450 ksi 380 ksi
Elongation (At Break)D638 0.330-60%
Flexural Modulus of ElasticityD790 450 ksi 400 ksi
Flexural StrengthD790 13 ksi 13 ksi
Compressive StressD695 16 ksi 15 ksi
Coefficient of FrictionQTM 55007 0.250.25
IZOD Impact (Notched)D256 1 ft-lb/in 1 ft-lb/in
Rockwell Hardness D785 M 88 M 88
Maximum Service Temperature(Long Term) 181ºF 181ºF
Melting PointD3418 347ºF 329ºF
Coefficient of Linear ExpansionE831 47 µin/in/ºF 54 µin/in/ºF
Heat Deflection Temperature, 264 psiD648 250ºF 220ºF
Flammability RatingUL94 HB HB
Electric StrengthD149 450 V/mil 420 V/mil
Result from above comparison, both products are equivalent

 

Comparison between PT&P’s TPI Amber VS Leading Competitor
Property ValueASTM TestTPI – AmberCompetitor
DensityD792 0.0485 lb/in3 0.0462 lb/in3
Tensile StrengthD638 17,000 psi 16,500 psi
Tensile Modulus of ElasticityD638 500 ksi 500 ksi
Elongation (At Break)D638 0.630-60%
Flexural Modulus of ElasticityD790 500 ksi 500 ksi
Flexural StrengthD790 20 ksi 20 ksi
Compressive StressD695 22 ksi 22 ksi
Coefficient of FrictionQTM 55007 0.420.42
IZOD Impact (Notched)D256 0.5 ft-lb/in 0.5 ft-lb/in
Rockwell HardnessD785 M 115 M 112
Maximum Service Temperature(Long Term) 340ºF 340ºF
Melting PointD3418 410ºF 410ºF
Coefficient of Linear ExpansionE831 31 µin/in/ºF 31 µin/in/ºF
Heat Deflection Temperature, 264 psiD648 400ºF 400ºF
Flammability RatingUL94 V-0 V-0
Electric StrengthD149 830 V/mil 830 V/mil
Result from above comparison, both products are equivalent.

 

Comparison between PT&P’s TPI Tan VS Leading Competitor
Property ValueASTM TestTPI - TanCompetitor
DensityD7920.047 lb/in30.047 lb/in3
Tensile StrengthD63816 ksi16 ksi
Tensile Modulus of ElasticityD638630 ksi500 ksi
Elongation (At Break)D6380.40.2
Flexural Modulus of ElasticityD790600 ksi1000 ksi
Flexural StrengthD79025 ksi25 ksi
Compressive Stress D69520 ksi 20 ksi
Coefficient of FrictionQTM 550070.320.4
IZOD Impact (Notched)D2560.6 ft-lb/in1.0 ft-lb/in
Rockwell Hardness D785M 105M103
Maximum Service temperature(Long Term)480ºF480ºF
Melting PointD3418644ºF644ºF
Coefficient of Linear ExpansionE831--
Heat Deflection Temperature, 264 psiD648320ºF320ºF
Flammability RatingUL94V--0V--0
Electric Strength D149480 V/mil-480 V/mil-
Result from above comparison, both products are equivalent.
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