ThreeBond 1373B Anaerobic sealant for inserted parts

ThreeBond 1373B is an anaerobic, extra-strength sealant for joints. It does not cure in air; rather, when it penetrates into narrow gaps in metallic parts, it quickly reacts and cures by polymerization. Thus it bonds or seals the joint. This sealant, including any overflow, cures in ultraviolet irradiation.

·	Is a fast-curing and extra-strength type.
·	Cures well at low temperature.
·	Has low viscosity.
·	Has the added feature that it cures in ultraviolet irradiation.

Bonding and sealing of joints

Properties

Before curing

Test items	Units	1373B	Test method	Remarks
Major component	-	Methacrylic acid ester
Color	-	Clear green	3TS-201-01
Viscosity	mPa s(cP)	90(90)	3TS-210-01
Specific gravity	-	1.10	3TS-213-02
Flash point	°C	100 or over

After curing

Test items	Units	1373B	Test method	Remarks
Major component	-	Polymethacrylic resin
Color	-	Green	3TS-201-01
Applicable temperature range	°C	-40-150
Bonding strength	MPa(kgf/cm²)	38.2(390)	3TS-305-01	24 hr at 25°C

Curing speed


Test condition;	Applied 1373B to each of two test pieces; cured one at 25°C and the other at 5°C; and measured the compressed-shearing strength at intervals.

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