Loctite 4471 Instant Adhesive

Loctite 4471 Prism Surface Insensitive Gap-filling Instant Adhesive 20g

• Storage Temperature : 2-8°C
• Viscosity : Medium
• Key Substrates : Wood, Leather and Foamed rubber
• Color : Clear
• Curing Type : Humidity
• Application : Bonding

 

LOCTITE 4471 is a clear, ethyl cyanoacrylate liquid adhesive designed for the assembly of difficult-to-bond materials which require uniform stress distribution and strong tension and/or shear strength. In addition to key substrates referred to above, the product bonds acidic surfaces such as chromated or freshly plated parts.

• Designed for the assembly of difficult-to-bond materials
• Also bonds acidic surfaces such as chromated or freshly plated parts

LOCTITE®
4471™ is designed for the assembly of difficultto-bond materials which require uniform stress distribution and
strong tension and/or shear strength. In addition to key
substrates referred to above, the product bonds acidic surfaces
such as chromated or freshly plated parts

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.

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.

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.
 

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
Safety Data Sheet (SDS).

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 dated September-23, 1998. 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: 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
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.