Loctite 241 Threadlocker 50ml

Sale price$58.00
5.0

Description

Loctite 241 Threadlocker 50ml

  • Strength : Medium
  • Viscosity : 100 - 150 mPa.s (cP) Brookfield
  • Key Substrates : Metal: Brass, Metal: Steel, Metal: Steel - Stainless Steel
  • Color : Blue, Opaque
  • Curing Type : Anaerobic
  • Application : Threadlocking
LOCTITE® 241 is a methacrylate-based threadlocking adhesive designed for medium strength applications on small threads. Typical fixture times are 35, 12 and 240 minutes on steel, brass and stainless steel respectively. Offering low viscosity and a breakaway torque of 11.5 Nm, the product is intended for fasteners that require normal disassembly with standard hand tools
  • Medium strength
  • Low viscosity
  • Designed for small threads
  • Various pack sizes
LOCTITE®241 is designed for the locking and sealing of threaded fasteners which require normal disassembly with
standard hand tools. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. Particularly suitable for applications on less active substrates such as stainless steel and plated surfaces, where disassembly with hand tools is required for servicing.
Mil-S-46163A

LOCTITE®241 is tested to the lot requirements of Military
Specification Mil-S-46163A. Note: This is a regional approval.
Please contact your local Technical Service Center for more
information and clarification.
ASTM D5363

Each lot of adhesive produced in North America is tested to
the general requirements defined in paragraphs 5.1.1 and
5.1.2 and to the Detail Requirements defined in section 5.2
TYPICAL CURING PERFORMANCE

Cure Speed vs. Substrate

The rate of cure will depend on the substrate used. The graph
below shows the breakaway strength developed with time on
M10 black oxide nuts and bolts compared to different materials
and tested according to MIL-S-46163.
Cure Speed vs. Bond Gap

The rate of cure will depend on the bondline gap. Gaps in
threaded fasteners depends on thread type, quality and size.
The following graph shows shear strength developed with time
on steel pins and collars at different controlled gaps and tested
according to MIL-R-46082.
Cure Speed vs. Temperature

The rate of cure will depend on the temperature. The graph
below shows the breakaway strength developed with time at
different temperatures on M10 black oxide nuts and bolts and
tested according to MIL-S-46163
Cure Speed vs. Activator

Where cure speed is unacceptably long, or large gaps are
present, applying activator to the surface will improve cure
speed. The graph below shows the breakaway strength
developed with time on M10 zinc dichromate steel nuts and
bolts using Activator 7471™ and 7649™ and tested according
to MIL-S-46163.
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).
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.
This product is not normally recommended for use on plastics
(particularly thermoplastic materials where stress cracking of
the plastic could result). Users are recommended to confirm
compatibility of the product with such substrates.
Directions for use:

For Assembly


  1. For best results, clean all surfaces (external and internal)
    with a LOCTITE® cleaning solvent and allow to dry.
  2. If the material is an inactive metal or the cure speed is too
    slow, spray all threads with and allow to dry.
  3. To prevent the product from clogging in the nozzle, do not
    allow the tip to touch metal surfaces during application.
  4. For Thru Holes, apply several drops of the product onto
    the bolt at the nut engagement area.
  5. For Blind Holes, apply several drops of the product down
    the internal threads to the bottom of the hole.
  6. For Sealing Applications, apply a 360° bead of product
    to the leading threads of the male fitting, leaving the first
    thread free. Force the material into the threads to
    thouroughly fill the voids. For bigger threads and voids,
    adjust product amount accordingly and apply a 360° bead
    of product on the female threads also.
  7. Assemble and tighten as required.

For Disassembly


  1. Remove with standard hand tools.
  2. In rare instances where hand tools do not work because
    of excessive engagement length, apply localized heat to
    nut or bolt to approximately 250 °C. Disassemble while
    hot.

For Cleanup


  1. Cured product can be removed with a combination of
    soaking in a Loctite solvent and mechanical abrasion
    such as a wire brush.

Loctite Material Specification

LMS dated December-13, 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
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.
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