HMC Electronics 19267 User Manual

Technical Data Sheet

LOCTITE®7471™

February-2008

PRODUCT DESCRIPTION

LOCTITE®7471™ provides the following product
characteristics:

Technology

Activator for LOCTITE® anaerobic

adhesives and sealants
Chemical Type Amine and Thiazole
Solvent Acetone and Isopropanol
Appearance Transparent, yellow to amber liquid

LMS

Viscosity Very low

Cure Not applicable
Application Cure acceleration of

LOCTITE® anaerobic products

LOCTITE®7471™ is used where increased cure speed of
LOCTITE® anaerobic products is required. It is especially
recommended for applications with passive metals or inert
surfaces and with large bond gaps. LOCTITE®7471™ is
particularly recommended when prevailing temperature is low
(<15 °C).

TYPICAL PROPERTIES

Specific Gravity @ 25 °C 0.79
Viscosity @ 20 °C, mPa·s (cP) 2
Drying Time @ 20 °C, seconds 30 to 70
On Part Life, days ≤7
Infrared Spectrum To match standard

LMS

Flash Point - See MSDS

TYPICAL PERFORMANCE

Fixture time and cure speed achieved as a result of using
LOCTITE®7471™ depend on the adhesive used and the
substrate bonded.

Fixture Time, ISO 4587, minutes:

Zinc dichromate using LOCTITE® 640™,
two side activation

≤25

(Fixture time is defined as the time to develop a shear
strength of 0.1 N/mm²)

TYPICAL PERFORMANCE OF CURED MATERIAL

Adhesive Properties

After 5 minutes @ 25 °C

Compressive Shear Strength, ISO 10123:

Steel pins and collars (degreased),
using LOCTITE®640™

N/mm² ≥4.5

LMS

(psi) (≥2,935)

Handling precautions

Activator must be handled in a manner applicable to highly
flammable materials and in compliance with relevant local
regulations.

The solvent can affect certain plastics or coatings. It is
recommended to check all surfaces for compatibility before
use.

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

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

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

Under no circumstances should activator and adhesive be
mixed directly as liquids.

Use only in a well ventilated area

Where aqueous washing systems are used to clean the
surfaces before bonding, it is important to check for
compatibility of the washing solution with the adhesive. In
some cases these aqueous washes can affect the cure and
performance of the adhesive.

Directions for use

1. Spray or brush on the activator on both mating surfaces to
be bonded. For small gaps, treatment of only one surface
may be adequate. Contaminated surfaces may need
repeated treatment or special degreasing prior to
activation to remove any dissolvable contamination.
Porous surfaces may need two treatments of activator.

2. Allow the solvent time to evaporate under good ventilation
until the surfaces are completely dry.

3. After activation, parts should be bonded within 7- days.
Contamination of the surface before bonding should be
prevented.

4. Apply the Loctite Anaerobic product to one or both
surfaces and assemble parts immediately.

5. Where possible, move surfaces in relation to each other
for a few seconds on assembly to properly distribute the
adhesive and for maximum activation..

6. Secure the assembly and await fixturing before any
further handling..

Loctite Material Specification

LMS

LMS dated September-01, 1995. 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.

Documentation Provided By HMC Electronics

33 Springdale Ave. Canton, MA 02021

http://www.hmcelectronics.com

[phone]

TDS LOCTITE®7471™, February-2008

Storage

This activator is classified as HIGHLY FLAMMABLE and
must be stored in an appropriate manner in compliance with
relevant regulations. Do not store near oxidising agents or
combustible materials. The product is light sensitve and
accordingly, translucent containers should be kept in a dark
place when not in use. Store product in the unopened
container in a dry location. Storage information may also be
indicated on the product container labelling.

Optimal Storage: 8 °C to 21 °C. Storage below 8 °C or
greater than 28 °C can adversely affect product properties.

Material removed from containers may be contaminated during
use. Do not return product to the original container. Henkel
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

Note

The data contained herein are furnished for information only
and are believed to be reliable. We cannot assume
responsibility for the results obtained by others over whose
methods we have no control. It is the user's responsibility to
determine suitability for the user's purpose of any production
methods mentioned herein and to adopt such precautions as
may be advisable for the protection of property and of persons
against any hazards that may be involved in the handling and
use thereof. In light of the foregoing, Henkel Corporation

specifically disclaims all warranties expressed or implied,
including warranties of merchantability or fitness for a
particular purpose, arising from sale or use of Henkel
Corporation’s products. Henkel Corporation specifically
disclaims any liability for consequential or incidental
damages of any kind, including lost profits. The discussion

herein of various processes or compositions is not to be
interpreted as representation that they are free from
domination of patents owned by others or as a license under
any Henkel Corporation patents that may cover such
processes or compositions. We recommend that each
prospective user test his proposed application before repetitive
use, using this data as a guide. This product may be covered
by one or more United States or foreign patents or patent
applications.

Trademark usage

Except as otherwise noted, all trademarks in this document
are trademarks of Henkel Corporation in the U.S. and
elsewhere. ® denotes a trademark registered in the U.S.
Patent and Trademark Office.

Reference 1.1

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]