RESOURCES
BUILDING PROTECTION

bps NR SBR

Sl.noPropertyTest Method NR SBR BASED
UnitSpec. (Limit) R75 M1Spec. (Limit) R270 E1
1HardnessASTM D 2240-97Shore A70±570±5
2Tensile StrengthASTM D412-98aMpa4.5 Min 3.0 Min 
3Elongation @ BreakASTM D412-98a%250 Min 215 Min 
4Compression Set (70°C / 22h)ASTM D395-98%35 Max35 Max
5Abrasion LossASTM D 5963mm³200 Min200 Min
6Tear StrengthASTM D 624kN/m25 Min25 Min
7Aging Test (70°C / 72h)ASTM D573-99   
7aHardness ChangeASTM D2240-97Shore A±5 Max±5 Max
7bTensile Strength ChangeASTM D412-98a%±10 Max±10 Max
7cElongation @ Break ChangeASTM D412-98a%±20 Max±20 Max
8Specific GravityASTM D792g/cm³1.25 ±.051.68 ±.05
9ResilienceASTM D7121%35 Min30 Min
10Ash ContentASTM D4574%14 Max20 Max
Rheological Properties
Temperature155° C Time: 12Min155° C Time: 12Min
ML (lb -in)0.5270.618
MH (lb -in)5.164.896
TS2 (M)2:453:24
TC90 (M)4:028:2
* Working Temperature.: -50°C  to 70°C
*Good weather Resistance.
*High Resilience and Tensile Strength.
*Good Abrasion Resistance.