Name: LOCTITE 4310
Brand: Henkel Corporation
SKU: LOCTITE 4310

Main features

Low-Viscosity Dual Cure
Rapid Exposed-Surface Fixturing
Fluorescent Process Inspection

Product Description

LOCTITE 4310 is a one-part cyanoacrylate adhesive with UV and visible-light cure plus secondary humidity cure for plastics, rubbers, and metals. Its low-viscosity fluorescent liquid supports controlled dispensing and inspection of applied material. Exposed surfaces can reach tack-free cure in 5 seconds or less under several specified light sources, while humidity cure supports shadowed bond areas. Non-UV fixture times range from under 5 seconds on ABS to 20 to 30 seconds on degreased steel. It is suited to fast assembly processes that need rapid surface cure, thin adhesive flow, and a second cure mechanism.

Key features

Low-viscosity dual cure: A 100 to 250 mPa s liquid combines UV or visible-light cure with secondary humidity cure.
Rapid exposed-surface cure: Several documented light sources produce a tack-free surface in 5 seconds or less.
Fluorescent process inspection: Positive UV fluorescence supports visual confirmation of adhesive placement.

Applications / Suitable for

Rapid bonding of plastics, rubbers, and metals
Light curing of exposed adhesive surfaces and fillets
Disposable medical-device assembly within documented evaluation scope

TDS, SDS & Technical Documents

Technical Specifications

General Properties

Chemistry Type

Ethyl cyanoacrylate with photoinitiator

Color

Transparent, light yellow-green to dark blue-green liquid

Component System

One component

Specific Gravity

1.06

Thermal Properties

Glass Transition Temperature (Tg)

102 °C

Linear thermal expansion

56x10^-6 K -1

Physical Properties

Tack-Free Time

≤10 minutes

Viscosity

100 to 250 mPa.s

Chemical Properties

Water Absorption

2.2 %

Mechanical Properties

Elongation

7.3 %

Peel Strength

3 N/mm

Electrical Properties

Volume Resistivity

10.9×10^15 Ohms⋅cm

Physical Properties

Depth of Cure

2 mm

Curing Conditions

Fixture Time

5 to 15 seconds

Additional Information

Technical properties

As-supplied / before-processing properties

Typical values for the product before cure, application, or assembly.

Property	Value	Unit	Method / condition
Appearance	Light yellow-green to dark blue-green liquid	-	As supplied
Fluorescence	Positive under UV light	-	As supplied
Chemical type	Ethyl cyanoacrylate with photoinitiator	-	As supplied
Components	One part	-	No mixing required
Specific gravity	1.06	-	25 deg C
Viscosity	100 to 250	mPa s	Cone and plate, 25 deg C, shear rate 100 s^-1
Cure mechanisms	UV / visible light; secondary humidity	-	Primary exposed-surface cure plus atmospheric-moisture cure

Technical properties

After-processing / final-state properties

Typical values for the cured or installed product under the listed conditions.

Property	Value	Unit	Method / condition
Tack-free time	<=5	s	Zeta 7411-S, 30 mW/cm^2 measured at 365 nm
Fixture time, ABS	<5	s	Non-UV cure, 22 deg C, 50% RH
Fixture time, degreased steel	20 to 30	s	Non-UV cure, 22 deg C, 50% RH
Glass transition temperature	102	deg C	ASTM E 228; cured 100 mW/cm^2 at 365 nm for 30 s per side
Shore hardness	84	Shore D	ISO 868; cured 100 mW/cm^2 at 365 nm for 30 s per side
Tensile strength	50	N/mm^2	ISO 527-3; cured 100 mW/cm^2 at 365 nm for 30 s per side
Block shear, polycarbonate to polycarbonate	22	N/mm^2	ISO 13445; cured 100 mW/cm^2 at 365 nm for 30 s