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
30-48 3.0 – 4.0 >25 >650 >100 50
50-68 3.0 – 4.5 >25 >650 >100 50
70-90 3.0 – 4.0 >25 >700 >100 -
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 0.52 0.22 1.01 4469 2219
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
75 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%