HMC Electronics 41145 User Manual

Technical Data Sheet

LOCTITE®411™

September-2009

PRODUCT DESCRIPTION

LOCTITE®411™ provides the following product
characteristics:

Technology Cyanoacrylate
Chemical Type Ethyl cyanoacrylate
Appearance (uncured) Water white to slightly cloudy gel

LMS

Components One part - requires no mixing
Viscosity High

Cure Humidity
Application Bonding

Key Substrates Rubbers, Plastics and Metals

LOCTITE®411™ is a general purpose gap filling adhesive
suitable for bonding rubber, plastic and metals. LOCTITE

®

411™ exhibits excellent peel strength and added heat
resistance.

TYPICAL PROPERTIES OF UNCURED MATERIAL

Specific Gravity @ 25 °C 1.05
Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP):

Spindle TC, speed 20 rpm, Helipath 4,000 to 8,000

LMS

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:

Steel (degreased) 20 to 50
Aluminum 10 to 30
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. 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

Cured for 24 hours @ 22 °C

Physical Properties:

Coefficient of Thermal Expansion,
ISO 11359-2, K

-1

80×10

-6

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

0.1

Glass Transition Temperature, ASTM E 228, °C 120

Electrical Properties:

Dielectric Constant / Dissipation Factor, IEC 60250:

0.05-kHz 2.3 / <0.02
1-kHz 2.3 / <0.02
1,000-kHz 2.3 / <0.02

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

15

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

25

TYPICAL PERFORMANCE OF CURED MATERIAL

Adhesive Properties

Cured for 30 seconds @ 22 °C

Tensile Strength, ISO 6922:

Buna-N N/mm² ≥7.0

LMS

(psi) (≥1,015)

Cured for 24 hours @ 22 °C

Lap Shear Strength, ISO 4587:

Steel (grit blasted) N/mm² 18 to 26

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

Aluminum (etched) N/mm² 11 to 19

(psi) (1,595 to 2,755)

ABS N/mm² >6

(psi) (>870)

PVC N/mm² >6

(psi) (>870)

Polycarbonate N/mm² >5

(psi) (>725)

Phenolic N/mm² 5 to 15

(psi) (725 to 2,175)

Neoprene N/mm² >10

(psi) (>1,450)

Nitrile N/mm² >10

(psi) (>1,450)

Tensile Strength, ISO 6922:

Steel (grit blasted) N/mm² 12 to 25

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

Cured for 24 hours @ 22 °C, followed by 24 hours @ 121 °C, tested
@ 121 °C

Lap Shear Strength, ISO 4587:

Steel (grit blasted) N/mm² ≥8.3

LMS

Documentation Provided By HMC Electronics

33 Springdale Ave. Canton, MA 02021

http://www.hmcelectronics.com

[phone]

TDS LOCTITE®411™, September-2009

(psi) (≥1,203)

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

0 60 80 100 120

Heat Aging

Aged at temperature indicated and tested @ 22 °C

% Initial Strength @ 22 °C

Exposure Time, hours

150

125

100

75

50

25

0

0 100 500 1000 5000

80 °C

100 °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 40 100 100 95

Gasoline 22 100 100 100

Isopropanol 22 100 100 100

Industrial methylated
spirits

22 100 100 100

1,1,1 Trichloroethane 22 100 100 100

Freon TA 22 100 100 100

Heat/humidity 95% RH 40 100 100 95

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 November-21, 2002. 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.

Storage

Store product in the unopened container in a dry location.
Storage information may be indicated on the product container
labeling.

Optimal Storage: 2 °C to 8 °C. Storage below 2 °C or
greater than 8 °C can adversely affect product properties.

Material removed from containers may be contaminated during
use. Do not return product to the original container. Henkel
Corporation cannot assume responsibility for product which
has been contaminated or stored under conditions other than
those previously indicated. If additional information is required,
please contact your local Technical Service Center or
Customer Service Representative.

Conversions

(°C x 1.8) + 32 = °F
kV/mm x 25.4 = V/mil
mm / 25.4 = inches
µm / 25.4 = mil
N x 0.225 = lb
N/mm x 5.71 = lb/in
N/mm² x 145 = psi
MPa x 145 = psi
N·m x 8.851 = lb·in
N·m x 0.738 = lb·ft
N·mm x 0.142 = oz·in
mPa·s = cP

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]