B390	B391	B392
Liquid resin properties	Appearance	Transparent water white liquid	Transparent water white liquid	Transparent water white liquid
	Acid value (mgKOH/g)	18-32	18-32	28-36
	Solid content(%)	63-68	64-67	67-73
	Viscosity (pa.s/25℃)	0.6-1.0	0.6-0.9	0.5-0.9
	Gel time (min/25℃)	3-6	3-6	4-8
Mechanical properties of casting	Barcol hardness (bar)	38	40	40
	Thermal deformation temperature (℃)	≥60	≥60	≥60
	Tensile strength (Mpa)	≥60	≥60	≥60
	Bending strength (Mpa)	≥90	≥100	≥90
	The elongation rate (%)	≥3.0	≥3.0	≥3.0
Main uses		Good toughness and is suitable for thick buckle	Rigidity is suitable for thin buckle	Button resin