Physical Properties : This item,the surface is very smooth,high structure.Among soft carbon black,its strength-adding power is the best. Usage : Its used in tyre,side tyre,inner tyre and compressed rubber stuff. Function : This item applies to natural rubber and synthesi syntheticalrubberItiseasy to disperse,it can strong strengthen rubber stuff.Fast extruding,small swelling mouth,the surface is smooth. Vulcanizate can stand high heat and heat conduction is fine, elasticity and rebounding are excellent.When used in butyl inside tyre,it¡¯s better to use together with N660. Technical Index item index superior certified Iodine Absorption Number g/Kg 43¡À4 43¡À6 DBP Absorption Number 10-5 M3/kg 121¡À5 121¡À7 Compressed DBP Absorption 10-5 M3/kg 80-90 77-93 CTA3 Absorption Surface Area /103 M2kg 37-47 35-49 CTSA/103 M2kg 39¡À5 39¡À9 Nitrogen Surface Area /103 M2kg 36-44 34-46 Tinting Strength /% Heating Loss /% ¡Ü1.5 Pour Density /kg/M2 360¡À40 300%Strengching Pressure /Mpa -0.9¡À1.0 -0.9¡À1.6 Packed in paper bags lined with plastic; net-weighted 25kg per bag