... Oil Resistance and Weather Resistance are better than NBRACMKeep the same Oil Resistance than NBR, Heat Resistance is a ... resistance, Inorganic medicines Resistance and weather Resistance. But the oil Resistance is bad.SBRGood Polarity solvent resistance, weather ... .4. Size: National standard, American standard, custom standard(as your drawing and sample)4 .Optional color: Black, red, yellow, brown, ...