ThreeBond 1359D Anaerobic sealant for a surface bonding

ThreeBond 1359D is a fast-curing, anaerobic, flexible sealant for surface bonding. It does not cure in air. Rather, when it penetrates into narrow gaps in metal parts, it quickly reacts and cures by polymerization to bond or seal the joined parts. This product is a soft sealant, appropriate for use in bonding motor magnets to yokes and in surface bonding. Any adhesive that overflows can be cured by ultraviolet irradiation.

·	Cures quickly.
·	Offers high viscosity and thixotropy.
·	Is flexible enough to be used for bonding surfaces.
·	Can be cured under ultraviolet irradiation, unlike earlier sealants. (The standard curing condition is 30kJ/m2(3000mJ/cm²)).

·	Bonding and sealing for joints of metallic part
·	Surface bonding of joints, for example, in motor magnets or yokes
·	Surface bonding of metallic parts

Properties

Before curing

Test items	Units	Attribute	Test method	Remarks
Major component	-	(Metha) acrylic acid ester	-
Color	-	Blue	3TS-201-01	Observed visually
Viscosity	Pa s(cP)	14(140)	3TS-210-02	BH viscometer 20rpm
Thixotropic ratio	-	2	3TS-211-02	2rpm/20rpm
Specific gravity	-	1.05	3TS-213-02	25°C

After curing

Test items	Units	Attribute	Test method	Remarks
Major component	-	Bonding strength*	-
Bonding strength*	MPa(kgf/cm²)	31.8(324)	3TS-305-01	Iron (s45c/ss41)
	MPa(kgf/cm²)	19.9(203)	3TS-305-01	SUS304
	MPa(kgf/cm²)	18.4(188)	3TS-305-01	Aluminum
Set time	min	2	3TS-220-05	1kgf development time
T-type peeling adhesive strength	kN/m(kgf/25mm)	2.9(7.3)	3TS-304-21	Fe
		1.8(4.5)	3TS-304-21	SUS304
		2.4(6.1)	3TS-304-21	Aluminum

* The test piece in the strength measurement had a bonding area of 6Ø x 15mm and a clearance of 1/100mm.

Curing speed


Test condition:	Applied 1359D to the joint of the iron test piece, and assembled it. Cured at 25°C. Measured the compressed-shearing strength at several intervals.