|
From U.S. Federal Specification
C-F-206G, June 27, 1989
| Type
I Roll Felt, SAE No. |
F-1 |
F-2 |
F-3 |
| Classification
No.. |
16R1 |
16R2 |
16R3 |
| Wool
Content ³% |
95 |
90 |
85 |
| Chlorothene
Solubles £% |
2.5 |
2.5 |
2.5 |
| Water
Solubles £% |
2.5 |
2.5 |
3.0 |
| Total
Solubles £% |
3.0 |
4.0 |
4.5 |
| Ash
Content £% |
1.5 |
2.0 |
2.5 |
| Tensile
Strength ³ psi |
500 |
500 |
400 |
| Slit
Resistance ³ psi |
33 |
28 |
22 |
| Width
= inches |
60 or 72 |
60 or 72 |
60 or 72 |
| Color |
White |
Not gray or black |
Gray |
Back to Top
| Thickness
vs. basis weight |
F-1
& F-2 |
F-3 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Thickness
Range |
Weight
lb/yd² |
| 1/16 |
0.050 - 0.075 |
0.95 - 1.05 |
— |
— |
| 1/8 |
0.113 - 0.137 |
1.90 - 2.10 |
0.113 - 0.137 |
1.90 - 2.10 |
| 3/16 |
0.175 - 0.201 |
2.85 - 3.15 |
0.175 - 0.201 |
2.85 - 3.15 |
| 1/4 |
0.236 - 0.264 |
3.80 - 4.20 |
0.236 - 0.264 |
3.80 - 4.19 |
| 5/16 |
0.298 - 0.328 |
4.75 - 5.25 |
0.298 - 0.328 |
4.75 - 5.24 |
| 3/8 |
0.359 - 0.391 |
5.70 - 6.30 |
0.359 - 0.391 |
5.70 - 6.29 |
| 1/2 |
0.481 - 0.519 |
7.60 - 8.40 |
0.481 - 0.519 |
7.60 - 8.39 |
| 5/8 |
0.603 - 0.647 |
9.50 - 10.50 |
0.603 - 0.647 |
9.50 - 10.49 |
| 3/4 |
0.725 - 0.775 |
11.40 - 12.60 |
0.725 - 0.775 |
11.40 - 12.59 |
| 7/8 |
0.847 - 0.903 |
13.30 - 14.70 |
0.847 - 0.903 |
13.30 - 14.69 |
| 1 |
0.969 - 1.031 |
15.20 - 16.80 |
0.969 - 1.031 |
15.20 - 16.79 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Thickness
Range |
Weight
lb/yd² |
Back
to Top
| Type
I Roll Felt, SAE No. |
F-5 |
F-6 |
F-7 |
| Classification
No. |
12R1 |
12R2 |
12R3 |
| Wool
Content ³% |
95 |
87 |
80 |
| Chlorothene
Solubles £ % |
2.5 |
2.5 |
4.0 |
| Water
Solubles £% |
2.5 |
2.5 |
4.0 |
| Total
Solubles £% |
3.0 |
4.5 |
7.0 |
| Ash
Content £% |
2.0 |
2.5 |
3.0 |
| Tensile
Strength ³ psi |
400 |
275 |
250 |
| Slit
Resistance ³ psi |
18 |
16 |
12 |
| Width
= inches |
60 or 72 |
60 or 72 |
60 or 72 |
| Color |
White |
Gray |
Gray |
Back to Top
| Thickness
vs. basis weight |
F-5,
F-6 & F-7 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
| 1/8 |
0.111 - 0.139 |
1.45 - 1.61 |
| 3/16 |
0.172 - 0.204 |
2.17 - 2.41 |
| 1/4 |
0.232 - 0.268 |
2.90 - 3.22 |
| 5/16 |
0.293 - 0.333 |
3.62 - 4.02 |
| 3/8 |
0.353 - 0.397 |
4.35 - 4.83 |
| 1/2 |
0.474 - 0.526 |
5.80 - 6.80 |
| 5/8 |
0.595 - 0.655 |
7.25 - 8.05 |
| 3/4 |
0.716 - 0.784 |
8.70 - 9.66 |
| 7/8 |
0.837 - 0.913 |
10.15 - 11.27 |
| 1 |
0.958 - 1.042 |
11.60 - 12.88 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Back to
Top
| Type
I Roll Felt, SAE No. |
F-10 |
F-11 |
F-12 |
F-13 |
F-15 |
| Classification
No. |
9R1 |
9R2 |
9R3 |
9R4 |
9R5 |
| WoolContent ³% |
95 |
87 |
85 |
75 |
55 |
| Chlorothene
Solubles £% |
2.5 |
3.0 |
4.0 |
4.0 |
4.0 |
| Water
Solubles £% |
2.5 |
2.5 |
2.5 |
4.0 |
5.0 |
| Total
Solubles £% |
3.0 |
4.5 |
6.5 |
8.0 |
9.0 |
| Ash
Content £% |
2.5 |
3.0 |
3.5 |
3.5 |
4.0 |
| Tensile
Strength ³ psi |
225 |
200 |
100 |
75 |
75 |
| Slit
Resistance ³ psi |
8 |
6 |
3 |
2 |
2 |
| Width
= inches |
72 |
72 |
72 |
72 |
72 |
| Color |
White |
Gray |
Gray |
Gray |
Gray |
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| Thickness
vs. basis weight |
F-10
to F-15 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
| 1/16 |
0.050 - 0.075 |
0.60 - 0.70 |
| 1/8 |
0.105 - 0.145 |
0.98 - 1.14 |
| 3/16 |
0.165 - 0.211 |
1.47 - 1.71 |
| 1/4 |
0.224 - 0.276 |
1.96 - 2.28 |
| 5/16 |
0.284 - 0.342 |
2.45 - 2.85 |
| 3/8 |
0.343 - 0.407 |
2.94 - 3.42 |
| 1/2 |
0.462 - 0.538 |
3.92 - 4.56 |
| 5/8 |
0.581 - 0.669 |
4.90 - 5.70 |
| 3/4 |
0.700 - 0.800 |
5.88 - 6.84 |
| 7/8 |
0.819 - 0.931 |
6.86 - 7.98 |
| 1 |
0.938 - 1.062 |
7.84 - 9.12 |
| 2 |
1.875 - 2.125 |
15.68 - 18.24 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Back to
Top
| Type
I Roll Felt, SAE No. |
F-50 |
F-51 |
F-55 |
| Classification
No. |
16R1X |
16R3X |
12R3X |
| Wool
Content ³% |
95 |
92 |
75 |
| Chlorothene
Solubles £% |
2.5 |
2.5 |
4.0 |
| Water
Solubles £% |
2.5 |
2.5 |
4.0 |
| Total
Solubles £% |
3.0 |
4.5 |
8.0 |
| Ash
Content £% |
1.5 |
2.5 |
3.0 |
| Tensile
Strength ³ psi |
500 |
300 |
200 |
| Width
= inches |
60 or 72 |
60 or 72 |
60 or 72 |
| Color |
White |
Gray |
Gray or black |
Back to Top
| Thickness
vs. basis weight |
F-50
& F-51 |
F-55 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Thickness
Range |
Weight
lb/yd² |
| 3/64 |
0.040 - 0.054 |
0.71 - 0.79 |
— |
— |
| 1/16 |
0.056 - 0.070 |
0.94 - 1.01 |
0.056 - 0.070 |
0.71 - 0.79 |
| 5/64 |
0.071 - 0.085 |
1.16 - 1.24 |
— |
— |
| 3/32 |
0.087 - 0.101 |
1.39 - 1.46 |
0.087 - 0.101 |
1.09 - 1.16 |
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| SAE
Felt Applications |
|
SAE
F-1 is suitable for oil retention in installations where the felt is
not compressed, for feeding low viscosity or light oil, and where unusual
strength and hardness are required. Washers, bushings, wicks, door bumpers,
polishing blocks and parts where wear and resistance to abrasion are required,
are typical uses.
|
SAE
F-13 & F-15 are recommended for sound deadening, chasis strips,
spacers, dust shields, and for mechanical purposes where abrasion and wear
are not important factors.
|
|
SAE
F-2 & F-3 are recommended for vibration mountings and the same
general purposes as F-1, but where a felt of slightly lower strength and
hardness is satisfactory.
|
SAE
F-50 is recommended for ball and roller bearing oil retainer washers
and small dust-excluding washers. Also for mechanical purposes where an
accurate, thin, smooth high-grade felt is required.
|
|
SAE
F-5 & F-7 are recommended for dust shields, wipers, grease retainers
washers, vibration mountings, and in uses where a resilient felt is required.
|
SAE
F-51 is recommended for the same general uses as F-50, but in installations
where tolerances and length of life are not as important. Also for thinly
cut parts, such as gaskets and liners.
|
|
SAE
F-10, F-11 & F-12 are recommended for grease and oil retention
where the felt is confined and compressed in assembly. Also, recommended
for dust shields under less severe operating conditions where F-5, F-6
and F-7 are not required.
|
SAE
F-55 is recommended for anti-squeak strips and for lining when cemented
to fiber board or metal panels
|
Back to Top
| Type
II Sheet Felt, Class. No. |
12-S1 |
12-S2 |
12-S3 |
12-S4 |
| Wool
Content ³% |
95 |
95 |
95 |
95 |
| Chlorothene
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Water
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Total
Solubles £% |
3.0 |
3.5 |
3.5 |
4.0 |
| Ash
Content £% |
1.5 |
1.5 |
2.0 |
2.5 |
| Tensile
Strength ³ psi |
400 |
300 |
300 |
300 |
| Slit
Resistance ³ psi |
18 |
16 |
12 |
10 |
| Water
Swell £% |
20 |
25 |
30 |
30 |
| Color |
White |
White |
White |
White |
Back to Top
| Thickness
vs. basis weight |
12-S1
to S4 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² (nominal) |
| 1/4 |
0.230 - 0.270 |
2.8 - 3.20 (3.00) |
| 3/8 |
0.351 - 0.399 |
4.20 - 4.80 (4.50) |
| 1/2 |
0.470 - 0.530 |
5.60 - 6.40 (6.00) |
| 5/8 |
0.590 - 0.660 |
7.05 - 7.95 (7.50) |
| 3/4 |
0.710 - 0.790 |
8.50 - 9.50 (9.00) |
| 7/8 |
0.829 - 0.921 |
9.95 - 11.05 (10.50) |
| 1 |
0.949 - 1.051 |
11.40 - 12.60 (12.00) |
| 1-1/4 |
1.188 - 1.312 |
14.30 - 15.70 (15.00) |
| 1-1/2 |
1.428 - 1.572 |
17.20 - 18.80 (18.00) |
| 1-3/4 |
1.667 - 1.833 |
20.10 - 21.90 (21.00) |
| 2 |
1.906 - 2.094 |
23.00 - 25.00 (24.00) |
| 2-1/2 |
2.385 - 2.615 |
28.95 - 31.05 (30.00) |
| 3 |
2.864 - 3.136 |
34.90 - 37.10 (36.00) |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Back
to Top
| Type
II Sheet Felt, Class. No. |
16-S1 |
16-S2 |
16-S3 |
16-S4 |
| Wool
Content ³% |
95 |
95 |
95 |
95 |
| Chlorothene
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Water
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Total
Solubles £% |
3.0 |
3.5 |
3.5 |
4.0 |
| Ash
Content £% |
1.5 |
1.5 |
2.0 |
2.5 |
| Tensile
Strength ³ psi |
500 |
400 |
400 |
300 |
| Slit
Resistance ³ psi |
32 |
28 |
22 |
20 |
| Water
Swell £% |
25 |
30 |
35 |
35 |
| Color |
White |
White |
White |
White |
Back to Top
| Thickness
vs. basis weight |
16-S1
to S4 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² (nominal) |
| 1/8 |
0.113 - 0.137 |
1.90 - 2.10 (2.00) |
| 3/16 |
0.176 - 0.200 |
2.85 - 3.15 (3.00) |
| 1/4 |
0.234 - 0.266 |
3.70 - 4.30 (4.00) |
| 3/8 |
0.356 - 0.394 |
5.60 - 6.40 (6.00) |
| 1/2 |
0.478 - 0.522 |
7.50 - 8.50 (8.00) |
| 5/8 |
0.599 - 0.651 |
9.40 - 10.60 (10.00) |
| 3/4 |
0.721 - 0.779 |
11.30 - 12.70 (12.00) |
| 7/8 |
0.843 - 0.907 |
13.25 - 14.75 (14.00) |
| 1 |
0.964 - 1.036 |
15.20 - 16.80 (16.00) |
| 1-1/4 |
1.208 - 1.292 |
19.10 - 20.90 (20.00) |
| 1-1/2 |
1.451 - 1.549 |
23.00 - 25.00 (24.00) |
| 1-3/4 |
1.694 - 1.806 |
26.90 - 29.10 (28.00) |
| 2 |
1.937 - 2.063 |
30.80 - 33.20 (32.00) |
| 2-1/2 |
2.424 - 2.576 |
38.75 - 41.25 (40.00) |
| 3 |
2.910 - 3.090 |
46.70 - 49.30 (48.00) |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Back to
Top
| Type
II Sheet Felt, Class. No. |
20-S1 |
20-S2 |
20-S3 |
20-S4 |
| Wool
Content ³% |
95 |
95 |
95 |
95 |
| Chlorothene
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Water
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Total
Solubles £% |
3.0 |
3.5 |
3.5 |
4.0 |
| Ash
Content £% |
1.5 |
1.5 |
2.0 |
2.5 |
| Tensile
Strength ³ psi |
600 |
500 |
400 |
300 |
| Slit
Resistance ³ psi |
44 |
40 |
36 |
32 |
| Water
Swell £% |
30 |
40 |
50 |
50 |
| Color |
White |
White |
White |
White |
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| Thickness
vs. basis weight |
20-S1
to S4 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² (nominal) |
| 1/8 |
0.113 - 0.137 |
2.20 - 2.80 (2.50) |
| 3/16 |
0.176 - 0.200 |
3.40 - 4.10 (3.75) |
| 1/4 |
0.236 - 0.264 |
4.60 - 5.40 (5.00) |
| 3/8 |
0.359 - 0.391 |
7.00 - 8.00 (7.50) |
| 1/2 |
0.481 - 0.519 |
9.40 - 10.60 (10.00) |
| 5/8 |
0.603 - 0.647 |
11.80 - 13.20 (12.50) |
| 3/4 |
0.725 - 0.775 |
14.20 - 15.80 (15.00) |
| 7/8 |
0.848 - 0.902 |
16.60 - 18.40 (17.50) |
| 1 |
0.970 - 1.030 |
19.00 - 21.00 (20.00) |
| 1-1/4 |
1.214 - 1.286 |
23.90 - 26.10 (25.00) |
| 1-1/2 |
1.459 - 1.541 |
28.80 - 31.20 (30.00) |
| 1-3/4 |
1.703 - 1.797 |
33.70 - 36.30 (35.00) |
| 2 |
1.947 - 2.053 |
38.60 - 41.40 (40.00) |
| 2-1/2 |
2.436 - 2.564 |
48.55 - 51.45 (50.00) |
| 3 |
2.925 - 3.075 |
58.50 - 61.50 (60.00) |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Back to Top
| Type
II Sheet Felt, Class. No. |
26-S1 |
26-S2 |
26-S3 |
26-S4 |
| Wool
Content ³% |
95 |
95 |
95 |
95 |
| Chlorothene
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Water
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Total
Solubles £% |
3.0 |
3.5 |
3.5 |
4.0 |
| Ash
Content £% |
1.5 |
1.5 |
2.0 |
2.5 |
| Tensile
Strength ³ psi |
600 |
500 |
400 |
400 |
| Slit
Resistance ³ psi |
48 |
46 |
40 |
30 |
| Water
Swell £% |
40 |
50 |
60 |
60 |
| Color |
White |
White |
White |
White` |
Back to Top
| Thickness
vs. basis weight |
26-S1
to S4 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² (nominal) |
| 1/8 |
0.115 - 0.135 |
2.85 - 3.65 (3.25) |
| 3/16 |
0.178 - 0.198 |
4.40 - 5.40 (4.90) |
| 1/4 |
0.239 - 0.261 |
5.90 - 7.10 (6.50) |
| 3/8 |
0.362 - 0.388 |
8.95 - 10.55 (9.75) |
| 1/2 |
0.484 - 0.516 |
12.00 - 14.00 (13.00) |
| 5/8 |
0.607 - 0.643 |
15.15 - 17.35 (16.25) |
| 3/4 |
0.730 - 0.770 |
18.30 - 20.70 (19.50) |
| 7/8 |
0.853 - 0.897 |
21.45 - 24.05 (22.75) |
| 1 |
0.975 - 1.025 |
24.60 - 27.40 (26.00) |
| 1-1/4 |
1.221 - 1.270 |
31.00 - 34.00 (32.50) |
| 1-1/2 |
1.467 - 1.533 |
37.40 - 40.60 (39.00) |
| 1-3/4 |
1.712 - 1.788 |
43.80 - 47.20 (45.50) |
| 2 |
1.958 - 2.042 |
50.20 - 53.80 (52.00) |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Back to
Top
| Type
II Sheet Felt, Class. No. |
32-S1 |
32-S2 |
32-S3 |
32-S4 |
| Wool
Content ³% |
95 |
95 |
95 |
95 |
| Chlorothene
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Water
Solubles £% |
2.0 |
2.5 |
2.5 |
2.5 |
| Total
Solubles £% |
3.0 |
3.5 |
3.5 |
4.0 |
| Ash
Content £% |
1.5 |
1.5 |
2.0 |
2.5 |
| Tensile
Strength ³ psi |
600 |
500 |
400 |
400 |
| Slit
Resistance ³ psi |
50 |
48 |
46 |
40 |
| Water
Swell £% |
50 |
60 |
70 |
70 |
| Color |
White |
White |
White |
White |
Back to Top
| Thickness
vs. basis weight |
32-S1
to S4 |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² (nominal) |
| 1/8 |
0.118 - 0.132 |
3.50 - 4.50 (4.00) |
| 3/16 |
0.181 - 0.195 |
5.25 - 6.75 (6.00) |
| 1/4 |
0.243 - 0.257 |
7.00 - 9.00 (8.00) |
| 3/8 |
0.366 - 0.384 |
10.90 - 13.10 (12.00) |
| 1/2 |
0.489 - 0.511 |
14.80 - 17.20 (16.00) |
| 5/8 |
0.612 - 0.638 |
18.70 - 21.30 (20.00) |
| 3/4 |
0.735 - 0.765 |
22.60 - 25.40 (24.00) |
| 7/8 |
0.858 - 0.892 |
26.50 - 29.50 (28.00) |
| 1 |
0.981 - 1.019 |
30.40 - 33.60 (32.00) |
| 1-1/4 |
1.228 - 1.272 |
38.30 - 41.70 (40.00) |
| 1-1/2 |
1.474 - 1.526 |
46.20 - 49.80 (48.00) |
| 1-3/4 |
1.712 - 1.779 |
54.10 - 57.90 (56.00) |
| 2 |
1.968 - 2.032 |
62.00 - 66.00 (64.00) |
| Thickness
(inches) |
Thickness
Range |
Weight
lb/yd² |
Back to Top
Length,
Types I & II
Type
I
Each roll shall contain not more
than two pieces, neither of which shall be less than 3 yards in length.
When specified, 3/4 to 2 inch-thick felt may be put up in sheets ³ 72 by 36 inches.
| Thickness
(inches) |
Length
(yards) |
| ³ 5/16 |
26 to 55 |
| > 5/16 £
1/2 |
13 to 33 |
| >1/2 £ 1 |
7 to 17 |
| 2 |
3 to 7 |
Type
II
Felt shall be furnished in sheets 36 inches by 36 inches ± 1/2 inch.
Back
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| Properties
that apply to Types I & II |
| Acid
Resistance |
Good (except F-7) |
Effect
of Sunlight and Oxidation |
None |
| Alkali
Resistance (dilute) |
Fair |
Temperature
Range |
-80 to 200° F |
| Solvent
Resistance |
Excellent |
Thermal
Expansion |
0 |
| Compression
Recovery |
³ 99% |
-- |
-- |
Certifications
Certificates of compliance
from AFFCO's complete in-house physical and chemical laboratory accompany
Types I and II.
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Capabilities
AFFCO manufacturers a complete
line of engineered felts:
• Wool
• Synthetics
• Blends and Composites
• Needled and Pressed
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| Mechanical
Felt Applications |
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Cushioning
& Padding
Felt's tough, interlocking fibers
provide excellent resilient protection against intermittent or sustained
impact. Resiliency is controlled by selected combinations of densities
and fibers. Some uses: orthopedic pads, bumpers, athletic equipment, industrial
cushioning.
Gasketing & Sealing
Select combinations of physical
properties, liquid absorption, low coefficient of friction, and resiliency
position felt for many special applications requiring gaskets and seals.
Airtight, water-tight, dust-tight seals, plain, treated, or laminated often
serve as lubricating media as well. Impregnations and laminations open
felt media to the wide spread applications. |
Wicking
& Lubrication (Fluid Transfer)
AFFCO manufactures felt in many
highly absorptive forms with unique controlled wicking acton that enables
it to store, and deliver specified and measured amounts of fluids such
as oils, inks, chemicals, and medicines. Examples are oil wicks, marker
nibs, and air fresheners.
Vibration & Shock Control
Felt is a shock absorbing material.
It has high resiliency, low compression set, and long life characteristics.
Felt reduces large scale vibration and shock transmission by up to 85%.
Polishing
AFFCO's felt making process controls
the texture and firmness of the felt in order to produce the desired degrees
of abrasiveness for polishing the roughness and irregularities from a wide
range of materials. In addition, felt has absorbent properties to hold
rouge, waxes, and other polishing liquids. |
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Type
I & II Felt Construction
Type I &
II felts are industrial fabrics with high a percentage of wool fibers which
are interlocked by applying combinations of mechanical pressure, chemical
treatment, moisture, and heat. The wool felt making process depends on
the natural tendency of wet wool fibers to tightly interlock. The process
results in pressed wool felt, where the higher the percentage of wool the
more dense and stronger the felt is. On the other hand, the higher the
percentage of "filler" fibers (often rayon) make the felts less dense and
more porous. Many end uses demand the densities and porosities of pressed
felt.
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Effective 2001. (C) 2001 All rights reserved.
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