Technical index

Item	Index	Test method
Appearance	Bright black colloid	Eyeballing
Fluidity mm	3	GB9264
Surface drying time (min)	30
Hardness	40-50	GB531-89
Adhesion strength (MPa)	0.5	GB7124
Valid period (m)	6	GB7751

Package & transportation
330g in plastic bottle ,20 piece/box, no hazardous chemicals.