RESOURCES
BALISTIC BLOCKS

nr sbr fire rated

Sl.no Property Test Method NR+SBR FIRE RATED
Unit Spec. (Limit) R270 MFR
1 Hardness ASTM D 2240-97 Shore A 70-75
2 Tensile Strength ASTM D412-98a Mpa 4 Min
3 Elongation @ Break ASTM D412-98a % 450 Min
4 Compression Set (70°C / 22h) ASTM D395-98 % 35 Max
5 Abrasion Loss ASTM D 5963 mm³ 200 Max
6 Tear Strength ASTM D 624 kN/m 23 Min
7 Aging Test (70°C / 72h) ASTM D573-99
7a Hardness Change ASTM D2240-97 Shore A ±5 Max
7b Tensile Strength Change ASTM D412-98a % ±10 Max
7c Elongation @ Break Change ASTM D412-98a % ±20 Max
8 Specific Gravity ASTM D792 g/cm³ 1.45 ±0.05
9 Resilience ASTM D7121 % 30 Min
10 Ash Content ASTM D4574 % 30 Max
Rheological Properties
Temperature 160° C Time: 12Min
ML (lb -in) 0.864
MH (lb -in) 4.38
TS2 (M) 2:47
TC90 (M) 6:34
* Working Temperature.: -50°C  to 70°C
*Good weather Resistance.
*Good Flame Resistance.
*Good Compression Resistance.