SPECIFICATIONS

CHARACTERISTICS OF RUBFIL THREADS

Variety
Count

GREEN MODULUS 
300% (Mpa)

TENSILE STRENGTH (Mpa)

ELONGATION  AT
BREAK  (%)

SCHWARTZ VALUE
(Gms/Sq.mm)

HEAT  RESISTANCE   (%)

STANDARD
20-28
2.0-3.5
>20
>650
>100
50
STANDARD
30-48
3.0 – 4.0
>25
>650
>100
50
STANDARD
50-68
3.0 – 4.5
>25
>650
>100
50
STANDARD
70-90
3.0 – 4.0
>25
>700
>100
50
FURNITURE GRADE
20-28
3.0 – 4.5
>28
>650
>110
50
FOOD GRADE
20 - 32
2.75 -3.50
>20
>700
>100
--
FISHING GRADE
11 – 19
1.5 – 3.0
>15
>650
>100
--
DIAPER GRADE
38-50
2.5-3.5
>25
>700
>100
50
SUPER HEAT RESISTANT
34 - 40
3.0 – 3.5
>30
>675
>135
85
Tolerance
± 3%
-10

GEOMETRICAL CHARACTERISTICS AND LENGTHS OF BARE RUBBER THREADS

Count
Diameter
in mm

Section Area
(mm)2

Density
(Max)

Length in M/Kg
(Metric Yield)

Length
in Yds/lb

12
2.12
3.53
1.01
288
143
14
1.81
2.57
1.01
395
196
16
1.59
1.98
1.01
512
254
18
1.41
1.56
1.01
630
313
20
1.27
1.26
1.01
780
387
24
1.06
0.88
1.01
1120
556
26
0.97
0.74
1.01
1311
651
28
0.91
0.65
1.01
1520
754
30
0.85
0.56
1.01
1750
868
32
0.79
0.49
1.01
1990
987
34
0.75
0.44
1.01
2250
1116
36
0.71
0.39
1.01
2520
1250
38
0.67
0.35
1.01
2800
1389
40
0.64
0.32
1.01
3100
1538
42
0.60
0.28
1.01
3610
1791
44
0.58
0.26
1.01
3750
1860
46
0.55
0.23
1.01
4104
2038
48
0.55
0.23
1.01
4104
2038
50
0.51
0.20
1.01
4850
2406
52
0.49
0.18
1.01
5435
2696
54
0.47
0.17
1.01
5660
2808
56
0.45
0.16
1.01
6083
3020
60
0.42
0.13
1.01
6990
3467
63
0.40
0.12
1.01
7698
3822
65
0.39
0.12
1.01
8200
4068
70
0.36
0.10
1.01
9510
4718
70
0.34
0.09
1.01
10920
5417
80
0.32
0.08
1.01
12440
6171
90
0.28
0.06
1.01
15740
7808
Tolerance
± 3%
± 3%
± 5%
± 5%
± 5%
Rubfila International Ltd.

Registered Head Office:
New Industrial Development Area,
Kanjikode, Palakkad - 678621.
Kerala, India.

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