A-201CFluoroelastomers

Technical Information
Introduction
Viton A-201C* fluoroelastomer is an incorporated cure“A-family” dipolymer designed for injection molding of
sealing devices that must meet major fluoroelastomer
specifications. In addition to the chemical and heat
resistance characteristics typical of fluoroelastomers,
Viton™ A-201C offers significant improvements inprocessing and rheology. Viton™ A-201C can be
blended with similar Viton™ types to provide variations inprocessing, properties, and shrinkage.
™

Features
Compared with older A-family Viton™ polymers, Viton™
A-201C provides:• Fully precompounded– O-ring curative level• Improved injection molding– Improved mold flow
– Easier mold release– Less mold fouling• Low viscosity– Ultrafast cure rate
• Excellent scorch safety• Excellent compression set resistance

Product Description
Chemical Composition

Dipolymer of hexafluoropropylene andvinylidene fluoride plus cure chemicals

Physical Form

Sheet

Appearance

Off-whiteOdor

None

Mooney Viscosity, ML 1 + 10
at 121 °C (250 °F)

20Specific Gravity

1.82

Storage Stability

ExcellentSolubility

Low molecular weight esters and ketones

Applications• Transfer and injection molding– O-rings, gaskets, seals, and other complex shapes• Extrusions– Hose and solid fluoroelastomer tubing– O-ring cord
• Can be used to modify viscosity of other types of Viton™
• Can be formulated to meet fluoroelastomer
specifications Mil-R-83248B and AMS 7276D
Safety and Handling
Viton™ A-201C should be handled like other types ofViton™. Keep off skin and wash well after handling. For thesafe handling of other compounding ingredients, refer tothe respective manufacturers’ literature.

*Viton™ A-201C was formerly named VTR-6402.

Viton™

Fluoroelastomers

Table 1. Performance of Viton™ A-201C in Typical Compounds
Viton™ A-201C
100——3630——

Viton™ E-430—100—3630——

Viton A-201C
Viton™ E-430
Viton™ A-401C
High-Activity MgOCalcium Hydroxide
MT Black (N-990)
Viton™ Curative No. 20
Viton™ Curative No. 30
Stock Properties
Viscosity, ML 1 + 10 at 121 °C (250 °F), Units
4263
Mooney Scorch, MS at 121 °C (250°F)
Minimum, in·lb
2335
2-Unit Rise, min>30>30
5-Unit Rise, min——ODR at 177 °C (350 °F), Microdie, 3° Arc, 15 min
914ML, in·lb
1.9
2.0ts2, min
3.3
6.3
tc90, min
103
65
Mc90, in·lb
113
71MH, in·lb
Rosand Capillary Rheometer at 100 °C (212 °F), 1.5 mm Die, L/D = 0/1
Piston Speeds
Shear Rate
Pressure, MPa
5.2
6.4
12.7 mm/min
113 s–1
8.1
9.6
50.8 mm/min
452 s–1
11.0
14.2
127 mm/min
1,130 s–1
Vulcanizate Properties
Slabs Cured: 10 min at 177 °C (350 °F)—Post-Cured: 24 hr at 232 °C (450 °F)
Stress/Strain at 23 °C (73 °F)—Original, No Post-Cure
100% Modulus, MPa (psi)
4.0 (575)
2.9 (415)
Tensile Strength, MPa (psi)
8.8 (1,275)
8.9 (1,295)
Elongation at Break, %261
415
Hardness, Durometer A, pts
77
72
Stress/Strain at 23 °C (73 °F)—Original, Post-Cured
100% Modulus, MPa (psi)
5.9 (855)
4.0 (575)
Tensile Strength, MPa (psi)13.0 (1,890)
14.8 (2,150)
Elongation at Break, %211
269
Hardness, Durometer A, pts
79
71
Stress/Strain at 23 °C (73 °F)—After Aging 70 hr at 200 °C (392 °F)
100% Modulus, MPa (psi)
5.9 (850)
4.1 (595)
Tensile Strength, MPa (psi)11.9 (1,725)
14.4 (2,095)
Elongation at Break, %195
260
Hardness, Durometer A, pts
83
72
Stress/Strain at 23 °C (73 °F)—After Aging 168 hr at 200 °C (392 °F)
100% Modulus, MPa (psi)
6.2 (900)
4.4 (645)
Tensile Strength, MPa (psi)13.0 (1,880)
15.5 (2,245)
Elongation at Break, %200
273
Hardness, Durometer A, pts
80
73
Stress/Strain at 23 °C (73 °F)—After Aging 70 hr at 232 °C (450 °F)
100% Modulus, MPa (psi)
6.2 (905)
4.5 (655)
Tensile Strength, MPa (psi)12.4 (1,795)
14.1 (2,040)
Elongation at Break, %184
235
Hardness, Durometer A, pts
82
74
Compression Set, Method B, O-Rings, %70 hr at 23 °C (73 °F)
61170 hr at 200 °C (392 °F)
1626
168 hr at 200 °C (392 °F)
2631
336 hr at 200 °C (392 °F)
47—
70 hr at 232 °C (450 °F)
38
51™

2Viton™ A-401C
——
100
3
630
——
80
43
17.9>30
15
1.7
3.2
112
122

7.6
10.7
18.7

4.6 (665)
9.9 (1,440)25774
6.4 (925)
13.4 (1,950)199
75
6.9 (995)
14.0 (2,035)198
78
7.0 (1,015)
13.9 (2,020)187
76
7.2 (1,050)
14.0 (2,035)
177
80
615212937

Viton™

Fluoroelastomers

Table 2. Effect of Carbon Black Level in Viton™ A-401C
60 phr45 phr30 phr15 phr

5 phr

2 phr

Viton™ A-201C

100

100

100

100

100

100

High-Activity MgO

3333

3

3Calcium Hydroxide

666663

MT Black (N-990)

60

45

30

15

5282

65

42

41

35

31

Minimum, in·lb

4435

23211715

2-Unit Rise, min>30>30>30>30>30>30

ML, in·lb13129786

Stock Properties
Viscosity, ML 1 + 10 at 121 °C (250 °F), Units
Mooney Scorch, MS at 121 °C (250 °F)

ODR at 177 °C (350 °F), Microdie, 3° Arc, 15 min
ts2, min

1.6

1.7

1.9

1.6

2.1

2.9

tc90, min

4.2

3.2

3.3

3.2

3.4

4.6

Mc90, in·lb

127

114

103

85

77

72

MH, in·lb

140

126

113

93

84

80

Vulcanizate Properties
Slabs Cured: 10 min at 177 °C (350 °F)—Post-Cured: 24 hr at 232 °C (450 °F)
Stress/Strain at 23 °C (73 °F)—Original, No Post-Cure
100% Modulus, MPa (psi)

6.5 (940)

5.3 (775)

4.0 (575)

2.5 (360)

1.6 (230)

1.2 (180)

Tensile Strength, MPa (psi)

8.5 (1,230)

8.7 (1,260)

8.8 (1,275)

8.3 (1,210)

7.2 (1,045)

5.7 (830)

Elongation at Break, %

189

227

261

287

300

282

Hardness, Durometer A, pts

90

82

77

63

54

49

Stress/Strain at 23 °C (73 °F)—Original, Post-Cured
100% Modulus, MPa (psi)11.3 (1,640)

9.0 (1,310)

5.9 (855)

3.2 (470)

1.8 (265)

1.3 (195)

Tensile Strength, MPa (psi)14.2 (2,065)

13.0 (1,880)

13.0 (1,890)

10.8 (1,565)

10.2 (1,480)

7.9 (1,140)

Elongation at Break, %

136

154

211

224

282

272

Hardness, Durometer A, pts

92

86

79

62

56

52

Stress/Strain at 23 °C (73 °F)—After Aging 70 hr at 200 °C (392 °F)
100% Modulus, MPa (psi)11.1 (1,610)

8.7 (1,260)

5.9 (850)

3.3 (475)

1.9 (270)

1.3 (185)

Tensile Strength, MPa (psi)12.7 (1,835)

13.0 (1,880)

11.9 (1,725)

12.2 (1,770)

9.9 (1,435)

6.5 (945)

Elongation at Break, %

121

159

195254274

255

Hardness, Durometer A, pts

9387

8366

5753

Stress/Strain at 23 °C (73 °F)—After Aging 168 hr at 200 °C (392 °F)
100% Modulus, MPa (psi)12.2 (1,765)

9.7 (1,405)

6.2 (900)

3.3 (480)

2.3 (340)

1.3 (195)

Tensile Strength, MPa (psi)14.4 (2,090)

13.9 (2,010)

13.0 (1,880)

11.9 (1,725)

9.4 (1,370)

6.8 (985)

Elongation at Break, %

126

151

200230230

248

Hardness, Durometer A, pts

93888066

65

54

Stress/Strain at 23 °C (73 °F)—After Aging 70 hr at 232 °C (450 °F)
100% Modulus, MPa (psi)12.7 (1,845)

9.7 (1,410)

6.2 (905)

3.3 (485)

1.9 (270)

1.3 (195)

Tensile Strength, MPa (psi)13.6 (1,975)

13.3 (1,930)

12.4 (1,795)

9.2 (1,330)

10.1 (1,460)

6.6 (955)

Elongation at Break, %

109

142

184

193273

251

Hardness, Durometer A, pts

93

88

82

66

57

54

70 hr at 23 °C (73 °F)

1612674670 hr at 200 °C (392 °F)

272216161313

168 hr at 200 °C (392 °F)

3732

26252424336 hr at 200 °C (392 °F)

4943473932

3170 hr at 232 °C (450 °F)

5449384140

32

Compression Set, Method B, O-Rings, %3

Viton™

Fluoroelastomers

Table 3. Effect of Mineral Fillers on Viton™ A-201C
MT Black
100
3630—————

Albaglos®
100
36—
30—
—
—
—

Nyad® 400
100
36—
—
30—
—
—

Celite® 350
100
36—
—
—
30—
—

Viton A-201C
High-Activity MgOCalcium Hydroxide
MT Black (N-990)
Albaglos®
Nyad® 400
Celite® 350
Blanc Fixe
Ti-Pure™ R-960
Stock Properties
Viscosity, ML 1 + 10 at 121 °C (250 °F), Units
42494565
Mooney Scorch, MS at 121 °C (250 °F)
Minimum, in·lb
2324
22395-Pt Rise, min>30>30>30>30
ODR at 177 °C (350 °F), Microdie, 3° Arc, 15 min
911
1012ML, in·lb
1.9
1.7
1.7
1.6
ts2, min
3.3
3.3
2.7
2.6
tc90, min
103
95
95
105
Mc90, in·lb
113
105
104
115
MH, in·lb
Vulcanizate Properties
Slabs Cured: 10 min at 177 °C (350 °F)—Post-Cured: 24 hr at 232 °C (450 °F)
Stress/Strain at 23 °C (73 °F)—Original, No Post-Cure
100% Modulus, MPa (psi)
4.0 (575)
3.4 (500)
3.4 (495)
5.3 (765)
Tensile Strength, MPa (psi)
8.8 (1,275)
8.2 (1,185)
6.9 (1,005)
8.9 (1,290)
Elongation at Break, %
261
243
273
251
Hardness, Durometer A, pts
77
66
65
77
Stress/Strain at 23 °C (73 °F)—Original, Post-Cured
100% Modulus, MPa (psi)
5.9 (855)
5.0 (720)
7.4 (1,080)
12.5 (1,815)
Tensile Strength, MPa (psi)13.0 (1,890)
12.2 (1,770)
10.8 (1,570)
15.5 (2,245)
Elongation at Break, %
211
188
167
130Hardness, Durometer A, pts
79
68
67
80
Stress/Strain at 23 °C (73 °F)—After Aging 70 hr at 200 °C (392 °F)
100% Modulus, MPa (psi)
5.9 (850)
5.4 (785)
6.9 (995)
13.1 (1,895)
Tensile Strength, MPa (psi)11.9 (1,725)
10.9 (1,575)
10.7 (1,555)
15.0 (2,175)
Elongation at Break, %
195
168
188
120
Hardness, Durometer A, pts
83
69
68
81
Stress/Strain at 23 °C (73 °F)—After Aging 168 hr at 200 °C (392 °F)
100% Modulus, MPa (psi)
6.2 (900)
5.8 (840)
7.4 (1,070)
12.6 (1,825)
Tensile Strength, MPa (psi)13.0 (1,880)
10.5 (1,520)
11.2 (1,625)
15.2 (2,200)
Elongation at Break, %
200
144
165
123
Hardness, Durometer A, pts
80
69
69
82
Stress/Strain at 23 °C (73 °F)—After Aging 70 hr at 232 °C (450 °F)
100% Modulus, MPa (psi)
6.2 (905)
5.8 (835)
7.2 (1,045)
11.9 (1,720)
Tensile Strength, MPa (psi)12.4 (1,795)
12.7 (1,840)
10.9 (1,585)
15.3 (2,220)
Elongation at Break, %
184
186
175
134
Hardness, Durometer A, pts
82
70
68
80
Compression Set, Method B, O-Rings, %70 hr at 23 °C (73 °F)
633670 hr at 200 °C (392 °F)
16211821
168 hr at 200 °C (392 °F)
26
34
28
31
336 hr at 200 °C (392 °F)
47
47
40
47
70 hr at 232 °C (450 °F)
38
50
4450
™

4Blanc Fixe
100
36————
30—

Ti-Pure™ R-960
100
33—————
30

41

43

21>30

21>30

7
1.6
3.1
85
94

10
1.8
3.6
80
88

2.3 (340)
7.2 (1,040)291
60

2.6 (380)
8.1 (1,180)286
61

3.2 (465)
11.0 (1,595)253
62

3.6 (525)
11.4 (1,660)208
64

3.2 (470)
10.4 (1,505)261
62

3.8 (550)
11.9 (1,725)212
66

3.2 (460)
10.3 (1,490)227
63

3.7 (540)11.3 (1,645)193
66

3.0 (435)
10.2 (1,480)266
63

3.8 (545)
12.0 (1,735)
210
67

41626
38
41

71526
38
38

Viton™

Fluoroelastomers

Table 4. Performance of Viton™ A-201C in Fluoroelastomer Specifications
Viton™ A-201C
Viton™ A-201C

100

High-Activity MgO

3Calcium Hydroxide

6MT Black (N-990)

30

Vulcanizate Properties

Mil-R-83248B (Amendment I)

AMS 7276D

Slabs Cured: 10 min at 177 °C (350 °F)—Post-Cured: 24 hr at 232 °C (450 °F)
Stress/Strain at 23 °C (73 °F)—Original, Post-Cured
Tensile Strength, MPa (psi)12.6 (1,820)

9.65 (1,400)

9.65 (1,400)

Elongation at Break, %205

125125

Hardness, Durometer A, pts

77

75 ± 575 ± 5

TR10 (max., °C [°F])–15 (5)–15 (5)–15 (5)Specific Gravity

1.84——

Tensile Strength, % change (max.)–26–35–35

Elongation at Break, % change (max.)

12–15

–15

Hardness, pts change

2–5 to 10

0 to 10Weight Loss, %41010

Stress/Strain at 23 °C (73 °F)—After Aging 70 hr at 275 °C (527 °F)

Stress/Strain at 23 °C (73 °F)—After Aging 70 hr at 23 °C (73 °F) in TT-S-735 Type III (ASTM Reference Fuel B)
Tensile Strength, % change (max.)

–8–20

–35

Elongation at Break, % change (max.)

–6

–20

–15Hardness, pts change–2–5 to 5–5 to 5

Volume Swell, %1

1 to 100 to 5–30–30

Stress/Strain at 23 °C (73 °F)—After Aging 70 hr at 175 °C (347 °F) in AMS 3021 (Stauffer 7700 Blend)
Tensile Strength, % change (max.)–14

Elongation at Break, % change (max.)

0–20

–20

Hardness, pts change–90 to –15–15 to 5

Volume Swell, %15

1 to 20

0 to 2070 hr at 23 °C (73 °F)

615—

166 hr at 175 °C (347 °F)

1920

—

22 hr at 200 °C (392 °F)

1220

—

70 hr at 200 °C (392 °F)

20

—

20

336 hr at 200 °C (392 °F)

35

—

40

Compression Set, Method B, %, O-Rings, 25 x 3.5 mm (0.984 x 0.139 in)5Viton™

Fluoroelastomers

Test Procedures
Property Measured

Test Procedure

Compression Set

ASTM D3955, Method B (25% deflection)

Compression Set, O-Rings

ASTM D1414

Hardness

ASTM D2240, durometer A

Mooney Scorch

ASTM D1646, using the small rotor. Minimum viscosity and time to a1-, 5-, and 10-unit rise are reported.

Mooney Viscosity

ASTM D1646, ten pass 121 °C (250 °F)

ODR (vulcanization characteristics measured with an oscillating disk cure meter)

ASTM D2084

Property Change After Oven Heat-Aging

ASTM D573

Stress/Strain Properties
100% Modulus
Tensile Strength
Elongation at BreakASTM D412, pulled at 8.5 mm/sec (20 in/min)

Volume Change in Fluids

ASTM D471-79

Temperature Retraction

ASTM D1329-88

Note: Test temperature is 24 °C (75 °F), except where specified otherwise.

For more information, visit Viton.com
The information set forth herein is furnished free of charge and based on technical data that Chemours believes to be reliable. It is intended for use by persons having technical skill, at their own
discretion and risk. The handling precaution information contained herein is given with the understanding that those using it will satisfy themselves that their particular conditions of use present
no health or safety hazards. Because conditions of product use are outside our control, Chemours makes no warranties, express or implied, and assumes no liability in connection with any useof this information. As with any material, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate under or arecommendation to infringe any patents.
NO PART OF THIS MATERIAL MAY BE REPRODUCED, STORED IN A RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS ELECTRONIC, MECHANICAL, PHOTOCOPYING, RECORDING OR OTHERWISEWITHOUT THE PRIOR WRITTEN PERMISSION OF CHEMOURS.

© 2016 The Chemours Company FC, LLC. Viton™, Ti-Pure™, Chemours™, the Chemours Logo, and any associated logos are trademarks or copyrights of The Chemours Company, itsaffiliates, or subsidiaries.
Replaces: VTE-H73552-00-D0710
C-11086 (12/16)