ThreeBond 3113B UV-curing epoxy resin

ThreeBond 3113B is a nonsolvent, UV-curing resin whose main component is an epoxy resin.
Its curing is not inhibited by the presence of oxygen; therefore it has excellent surface-curing properties.

·	Cures under UV irradiation at wavelengths of 200-400nm in no more than a few tens of seconds.
·	Has a low ratio of contraction in curing.
·	Has excellent surface-curing and depth-curing properties.
·	Is suitable for bonding various materials, such as glasses, metals, and plastics.
·	Curing acceleration by heating is not required after UV irradiation.

·	Suitable for bonding and fixing of optical parts, such as components of optical pickups.
·	Suitable for bonding and fixing of electric and electronic parts.

Properties

Item	Units	Characteristics	Test method	Note
Color and appearance	-	Milky white	3TS-201-01	-
Viscosity	Pa.s	15	3TS-210-02	25°C, 20rpm
Structural viscosity ratio	-	4.4	3TS-211-02	25°C, 2/20rpm
Specific gravity	-	1.13	3TS-213-02	25°C

Rotor for measurements of viscosity and structural viscosity ratio : No.5

Properties after curing

Item	Units	Characteristics	Test method	Note
Hardness	-	D72	3TS-215-01	25°C
Curing contraction ratio	%	4.1	3TS-228-01	1.0g
Water absorption ratio	%	1.9*	3TS-233-03	1.0g
Thick-film curing	mm	9.8	3TS-222-01	20kJ/m²

* Boiling :	2 hours
Integrated radiated UV rays :	20kJ/m² (2000mJ/cm²)

Tensile-shearing adhesive strength

Tested materials		Test results (MPa)	Details of adherend
Polycarbonate	Polycarbonate	3.4	Polycarbonate : L1225Y
Acryl	Acryl	7.0 (material breakage)	Acryl : VH000
Aluminum	Glass	5.0 (material breakage)	Aluminum : A-1050P
Stainless	Glass	8.0 (material breakage)	Stainless : SUS-304
Zinc die-cast	Glass	7.0 (material breakage)	Zinc die-cast : ZDC2

Test method :	3TS-301-13
Integrated radiated UV rays :	20kJ/m² (2000mJ/cm²)