Loctite 243 Threadlocker 50ml

Loctite 243 Threadlocker 50ml

• Strength : Medium
• Temperature : -65 - 360 °F
• Viscosity : 1300 - 3000
• Key Substrates : Metal: Brass, Metal: Steel, Metal: Steel - Stainless Steel
• Color: Blue
• Curing Type: Anaerobic

LOCTITE 243 is a general-purpose threadlocker that provides a medium-strength bond. LOCTITE 243 works on all metals, including passive substrates such as stainless steel, aluminum, and plated surfaces. It is proven to be tolerant of minor contamination due to industrial oils, e.g., motor oils, corrosion prevention oils, and cutting fluid.

• Prevents loosening on vibrating assemblies, e.g. pumps, gearboxes or presses
• Works on all metals, including passive substrates (e.g. stainless steel, aluminum, plated surfaces)
• Proven to tolerate minor contamination by industrial oils, e.g. motor oils, corrosion prevention oils, and cutting fluids
• Permits disassembly with hand tools for servicing
• P1 NSF Reg. No.: 123000

LOCTITE 243 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 vibrations thixotropic nature of LOCTITE 243 reduces the migration of liquid product after application to the substrate LOCTITE 243 provides robust curing performance. It not only works on active metals (e.g. brass, copper) but also on passive substrates such as stainless steel and plated surfaces. The product offers high-temperature performance and oil tolerance.
It tolerates minor surface contaminations from various oils, such as cutting, lubrication, anti-corrosion and protection fluids

NSF International

Registered to NSF Category P1 for use as a sealant where
there is no possibility of food contact in and around food
processing areas. Note: This is a regional approval. Please
contact your local Technical Service Center for more
information and clarification.

NSF International

Certified to ANSI/NSF Standard 61 for use in commercial and
residential potable water systems not exceeding 82° C. Note:
This is a regional approval. Please contact your local Technical
Service Center for more information and clarification.

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 steel nuts and bolts compared to different materials and
tested according to ISO 10964.

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 ISO 10123

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 steel nuts and bolts and tested
according to ISO 10964

Cure Speed vs. Activator

Where cure speed is unacceptably long, or large gaps are
present, applying activator to the surface will improve cure
speedThe graph below shows the breakaway strength
developed with time on M10 zinc dichromate steel nuts and
bolts using Activator 7471™, 7649™, 7088™ and 7091™ and
tested according to ISO 10964

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 cure speed is too slow, use the appropriate activator.
   Please see the Cure Speed vs. Activator graph for
   reference. Allow the activator to dry when needed
3. Shake the product thoroughly before use
4. To prevent the product from clogging in the nozzle, do
   not allow the tip to touch metal surfaces during
   application
5. For Thru Holes, apply several drops of the product onto
   the bolt at the nut engagement area
6. For Blind Holes, apply several drops of the product to
   the lower third of the internal threads in the blind hole, or
   the bottom of the blind hole
7. 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
   thoroughly fill the voids. For bigger threads and voids,
   adjust product amount accordingly and apply a 360°
   a bead of product on the female threads also
8. 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
3. Apply localized heat to the assembly 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 June-29, 2009. 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.
 
These are the frequently asked questions :

1. What is the strongest threadlocker?
2. How does Loctite threadlocker work?
3. How do I choose a Loctite threadlocker?
4. What type of Loctite should I use?
5. How to keep screws from coming loose in metal?
6. How to tighten loose thread screw?
7. Is there a loctite threadlocker chart?

Feel free to contact us if there are any queries above or other questions we will be glad to assist you.
Demo Practices are available too, we have our professional to guide you or recommend proper application on the products.