Poperties of Plastic Resins


Properties Unit ASTM test PTFE PFA FEP ETFE CTFE PVDF PVC PE PI PEEK
Physical Properties Specific gravity - D792 2.14-2.20 2.12-2.17 2.12-2.17 1.7 2.1-2.2 1.77 1.35-1.45 0.91-0.93 1.41 1.3
Melting point °C - 327 310 275 270 220 166 75-105 130-137 - 334
Coefficient of liner thermal expansion 10-5/ °C D696 9.9 (23~66 °C) 12 (21~100 °C) 8.3-10.5 9 4.5-7 8.5 7.5 16-18 5.2 4.8
Thermal conductivity 10-6W/m
C C Dk
C177 1.9 1.9 1.9 1.8 1.6 1.7 1-2.3 2.6 - 1.9
Index of refraction - D541 1.35 1.35 1.34 1.4 - 1.42 1.54 1.51 - -
Coefficient of water absorption % (24h) D570 <0.01 0.03 <0.01 0.03 - 0.05 0.07-4 <0.015 0.39 0.14
Max. temp. °C - 260 260 205 180 180 135 50-70 100 260 250
Physical Properties Tensile strength Mpa D638 13.7-34.3 27.5-29.4 18.6 44.6 31-41 37-51 34-61 10-13 83 97
Elongation % D638 200-400 300 250-330 100-400 80-250 25-500 2-40 200-575 8 80
Compressive strength Mpa D695 11.8 - 15.2 49 31-51 59-68 54-89 - 122 120
Flexural modulus Mpa D790 - - - 38 51-64 59-75.5 68-103 - 127 138.3
Bending strength X103Mpa
(22.8 °C)
D790 0.55 (5.6) 0.82 (8.4) 0.6 1.37 1.54 1.37 2-3.5 0.25-0.5 3 3.8
Hardness Rockwell D785 - - - R50 R75-95 -- - - 88 R126
Durometer D2240 50-55 64 60-65 75 80 80 80-90 49-75 - -
Coefficient of dynamic friction 0.7Mpa
3m/mis St
- 0.10 0.2 0.3 0.4 0.39 0.39 0.22 0.14 - -
Electric Properties Specific volume resistivity Ω . cm D257 >1018 >1018 >1018 >1016 2x1014 2x1014 >1016 >1015 3x1016 >1016
Surface resistivity Ω D257 >1016 >1016 >1016 >1016 - - - - - >1016
Dielectric breakdown voltage 1.8Th kv/mm C149 19.2 20 20-24 16 10.4 20-24 18-48 19 20 19
Dielectric constant 60Hz D150 <2.1 <2.1 2.1 2.6 8.4 2.5 3 2.3 3.65 3.25
Dielectric loss tangent 60Hz D150 <0.0002 <0.0002 <0.0002 0.0006 0.049 0.0012 0.006 <0.0005 0.0039 0.002
Chemical Properties Effect of sunlight - -
Acid resistance - D543
? - C543
Solvent resistance - -
Workability - -
Physical Properties Unit ASTM test PTFE PFA FEP
Specific gravity - D792 2.14-2.20 2.12-2.17 2.12-2.17
Melting point °C - 327 310 275
Coefficient of liner thermal expansion 10-5/ °C D696 9.9 (23~66 °C) 12 (21~100 °C) 8.3-10.5
Thermal conductivity 10-6W/m
C C Dk
C177 1.9 1.9 1.9
Index of refraction - D541 1.35 1.35 1.34
Coefficient of water absorption % (24h) D570 <0.01 0.03 <0.01
Max. temp. °C - 260 260 205
Mechanical Properties Unit ASTM test PTFE PFA FEP
Tensile strength Mpa D638 13.7-34.3 27.5-29.4 18.6
Elongation % D638 200-400 300 250-330
Compressive strength Mpa D695 11.8 - 15.2
Flexural modulus Mpa D790 - - -
Bending strength X103Mpa
(22.8 °C)
D790 0.55 (5.6) 0.82 (8.4) 0.6
Hardness Rockwell D785 - - -
Durometer D2240 50-55 64 60-65
Coefficient of dynamic friction 0.7Mpa
3m/mis St
- 0.10 0.2 0.3
Electric Properties Unit ASTM test PTFE PFA FEP
Specific volume resistivity Ω . cm D257 >1018 >1018 >1018
Surface resistivity Ω D257 >1016 >1016 >1016
Dielectric breakdown voltage 1.8Th kv/mm C149 19.2 20 20-24
Dielectric constant 60Hz D150 <2.1 <2.1 2.1
Dielectric loss tangent 60Hz D150 <0.0002 <0.0002 <0.0002
Chemical Properties Unit ASTM test PTFE PFA FEP
Effect of sunlight - -
Acid resistance - D543
? - C543
Solvent resistance - -
Workability - -
Physical Properties Unit ASTM test ETFE CTFE PVDF
Specific gravity - D792 1.7 2.1-2.2 1.77
Melting point °C - 270 220 166
Coefficient of liner thermal expansion 10-5/ °C D696 9 4.5-7 8.5
Thermal conductivity 10-6W/m
C C Dk
C177 1.8 1.6 1.7
Index of refraction - D541 1.4 - 1.42
Coefficient of water absorption % (24h) D570 0.03 - 0.05
Max. temp. °C - 180 180 135
Mechanical Properties Unit ASTM test PTFE PFA FEP
Tensile strength Mpa D638 44.6 31-41 37-51
Elongation % D638 100-400 80-250 25-500
Compressive strength Mpa D695 49 31-51 59-68
Flexural modulus Mpa D790 38 51-64 59-75.5
Bending strength X103Mpa
(22.8 °C)
D790 1.37 1.54 1.37
Hardness Rockwell D785 R50 R75-95 --
Durometer D2240 75 80 80
Coefficient of dynamic friction 0.7Mpa
3m/mis St
- 0.4 0.39 0.39
Electric Properties Unit ASTM test PTFE PFA FEP
Specific volume resistivity Ω . cm D257 >1016 2x1014 2x1014
Surface resistivity Ω D257 >1016 - -
Dielectric breakdown voltage 1.8Th kv/mm C149 16 10.4 20-24
Dielectric constant 60Hz D150 2.6 8.4 2.5
Dielectric loss tangent 60Hz D150 0.0006 0.049 0.0012
Chemical Properties Unit ASTM test PTFE PFA FEP
Effect of sunlight - -
Acid resistance - D543
? - C543
Solvent resistance - -
Workability - -
Physical Properties Unit ASTM test PVC PE PI PEEK
Specific gravity - D792 1.35-1.45 0.91-0.93 1.41 1.3
Melting point °C - 75-105 130-137 - 334
Coefficient of liner thermal expansion 10-5/ °C D696 7.5 16-18 5.2 4.8
Thermal conductivity 10-6W/m
C C Dk
C177 1-2.3 2.6 - 1.9
Index of refraction - D541 1.54 1.51 - -
Coefficient of water absorption % (24h) D570 0.07-4 <0.015 0.39 0.14
Max. temp. °C - 50-70 100 260 250
Mechanical Properties Unit ASTM test PTFE PFA FEP  
Tensile strength Mpa D638 34-61 10-13 83 97
Elongation % D638 2-40 200-575 8 80
Compressive strength Mpa D695 54-89 - 122 120
Flexural modulus Mpa D790 68-103 - 127 138.3
Bending strength X103Mpa
(22.8 °C)
D790 2-3.5 0.25-0.5 3 3.8
Hardness Rockwell D785 - - 88 R126
Durometer D2240 80-90 49-75 - -
Coefficient of dynamic friction 0.7Mpa
3m/mis St
- 0.22 0.14 - -
Electric Properties Unit ASTM test PTFE PFA FEP  
Specific volume resistivity Ω . cm D257 >1016 >1015 3x1016 >1016
Surface resistivity Ω D257 - - - >1016
Dielectric breakdown voltage 1.8Th kv/mm C149 18-48 19 20 19
Dielectric constant 60Hz D150 3 2.3 3.65 3.25
Dielectric loss tangent 60Hz D150 0.006 <0.0005 0.0039 0.002
Chemical Properties Unit ASTM test PTFE PFA FEP  
Effect of sunlight - -
Acid resistance - D543
? - C543
Solvent resistance - -
Workability - -

For complete technical and order assistance, please contact customer service.

Contact Us


You are welcome to contact us.

251 F-1 No.6 Ln177 Min-Chuan Rd, Tam-SHui 251 Taipei, Taiwan

(02) 2809-9415

(02) 2809-4270

service@sashay.com.tw