HMC Electronics 41650 User Manual

Technical Data Sheet

LOCTITE®416™

January-2010

PRODUCT DESCRIPTION

LOCTITE®416™ provides the following product
characteristics:

Technology Cyanoacrylate
Chemical Type Ethyl cyanoacrylate
Appearance (uncured) Transparent clear liquid

LMS

Components One part - requires no mixing
Viscosity High

Cure Humidity
Application Bonding

Key Substrates Plastics, Rubbers and Metals

LOCTITE®416™ is a general purpose cyanoacrylate instant
adhesive.

Mil-A-46050C

LOCTITE®416™ is tested to the lot requirements of Military
Specification Mil-A-46050C. Note: This is a regional approval.
Please contact your local Technical Service Center for more
information and clarification.

Commercial Item Description A-A-3097:

LOCTITE®416™ has been qualified to Commercial Item
Description A-A-3097. Note: This is a regional approval.
Please contact your local Technical Service Center for more
information and clarification.

TYPICAL PROPERTIES OF UNCURED MATERIAL

Specific Gravity @ 25 °C 1.05
Viscosity, Cone & Plate, mPa·s (cP):

Temperature: 25 °C, Shear Rate: 100 s

-1

900 to 1,500

LMS

Viscosity, Brookfield - LVF, 25 °C, mPa·s (cP):

Spindle 2, speed 12 rpm 1,150 to 1,500
Vapour Pressure, hPa <1
Flash Point - See MSDS

TYPICAL CURING PERFORMANCE

Under normal conditions, the atmospheric moisture initiates the
curing process. Although full functional strength is developed
in a relatively short time, curing continues for at least 24 hours
before full chemical/solvent resistance is developed.

Cure Speed vs. Substrate

The rate of cure will depend on the substrate used. The table
below shows the fixture time achieved on different materials
at 22 °C / 50 % relative humidity. This is defined as the time to
develop a shear strength of 0.1 N/mm².

Fixture Time, seconds:

Mild Steel (degreased) 20 to 50
Aluminum 10 to 30
Zinc dichromate 40 to 100
Neoprene <5
Rubber, nitrile <5
ABS 15 to 40
PVC 20 to 50

Polycarbonate 30 to 70
Phenolic 10 to 40

Cure Speed vs. Bond Gap

The rate of cure will depend on the bondline gap. Thin bond
lines result in high cure speeds, increasing the bond gap will
decrease the rate of cure.

Cure Speed vs. Humidity

The rate of cure will depend on the ambient relative humidity.
The following graph shows the tensile strength developed with
time on Buna N rubber at different levels of humidity.

% Full Cured Strength @ 22 °C

Cure Time, seconds

100

75

50

25

0

0 10 20 30 40 50 60

60% RH

40% RH

20% RH

Cure Speed vs. Activator

Where cure speed is unacceptably long due to large gaps,
applying activator to the surface will improve cure speed.
However, this can reduce ultimate strength of the bond and
therefore testing is recommended to confirm effect.

TYPICAL PROPERTIES OF CURED MATERIAL

After 24 hours @ 22 °C

Physical Properties:

Coefficient of Thermal Expansion,
ISO 11359-2, K

-1

100×10

-6

Coefficient of Thermal Conductivity, ISO 8302,
W/(m·K)

0.1

Softening Point, DIN EN 1427, °C 165

Electrical Properties:

Dielectric Constant / Dissipation Factor, IEC 60250:

0.1-kHz 2 to 3.3 / <0.02
1-kHz 2 to 3.5 / <0.02
10-kHz 2 to 3.5 / <0.02

Volume Resistivity, IEC 60093, Ω·cm 2×10

15

to 10×10

15

Surface Resistivity, IEC 60093, Ω 10×10

15

to 80×10

15

Dielectric Breakdown Strength,
IEC 60243-1, kV/mm

25

TYPICAL PERFORMANCE OF CURED MATERIAL

Adhesive Properties

After 24 hours @ 22 °C

Lap Shear Strength, ISO 4587:

Steel (grit blasted) N/mm² 18 to 26

(psi) (2,610 to 3,770)

Documentation Provided By HMC Electronics

33 Springdale Ave. Canton, MA 02021

http://www.hmcelectronics.com

[phone]

TDS LOCTITE®416™, January-2010

Aluminum (etched) N/mm² 12 to 19

(psi) (1,740 to 2,755)

Zinc dichromate N/mm² 6 to 13

(psi) (870 to 1,885)

ABS N/mm² 6 to 20

(psi) (870 to 2,900)

PVC N/mm² 6 to 20

(psi) (870 to 2,900)

Polycarbonate N/mm² 5 to 20

(psi) (725 to 2,900)

Phenolic N/mm² 5 to 15

(psi) (725 to 2,175)

Neoprene N/mm² 5 to 15

(psi) (725 to 2,175)

Nitrile N/mm² 5 to 15

(psi) (725 to 2,175)

Tensile Strength, ISO 6922:

Steel N/mm² 12 to 25

(psi) (1,740 to 3,625)

Buna-N N/mm² 5 to 15

(psi) (725 to 2,175)

"T" Peel Strength, ISO 11339:

Steel (degreased) N/mm <0.5

(lb/in) (<2.8)

After 10 seconds @ 22 °C

Tensile Strength, ISO 6922:

Buna-N N/mm² ≥6.0

LMS

(psi) (≥870)

TYPICAL ENVIRONMENTAL RESISTANCE

Cured for 1 week @ 22 °C

Lap Shear Strength, ISO 4587:

Mild Steel (grit blasted)

Hot Strength

Tested at temperature

% Strength @ 22 °C

Temperature, °C

100

75

50

25

0

-50 0 50 100 150

Heat Aging

Aged at temperature indicated and tested @ 22 °C

% Initial Strength @ 22 °C

Exposure Time, hours

125

100

75

50

25

0

0 1000 2000 3000 4000 5000

80 °C

100 °C

60°C

Chemical/Solvent Resistance

Aged under conditions indicated and tested @ 22 °C.

% of initial strength

Environment °C 100 h 500 h 1000 h

Motor oil (MIL-L-46152) 40 100 100 95

Gasoline 22 100 100 100

Isopropanol 22 100 100 100

Ethanol 22 100 100 100

Freon TA 22 100 100 100

1,1,1 Trichloroethane 22 100 100 100

Heat/humidity 95% RH 40 80 75 65

Heat/humidity 95% RH
on polycarbonate

40 100 100 100

GENERAL INFORMATION
This product is not recommended for use in pure oxygen

and/or oxygen rich systems and should not be selected as
a sealant for chlorine or other strong oxidizing materials

For safe handling information on this product, consult the
Material Safety Data Sheet (MSDS).

Directions for use:

1. For best performance bond surfaces should be clean and
free from grease.

2. This product performs best in thin bond gaps (0.05 mm).

3. Excess adhesive can be dissolved with Loctite cleanup
solvents, nitromethane or acetone.

Loctite Material Specification

LMS

LMS dated October-10, 2005. Test reports for each batch are
available for the indicated properties. LMS test reports include
selected QC test parameters considered appropriate to
specifications for customer use. Additionally, comprehensive
controls are in place to assure product quality and
consistency. Special customer specification requirements may
be coordinated through Henkel Quality.

Henkel Americas
+860.571.5100

Henkel Europe

+49.89.320800.1800

Henkel Asia Pacific

+86.21.2891.8863

For the most direct access to local sales and technical support visit: www.henkel.com/industrial

Documentation Provided By HMC Electronics

33 Springdale Ave. Canton, MA 02021

http://www.hmcelectronics.com

[phone]