Loctite SF 7649 Acrylic Primer



Loctite Sf 7649 Green Acrylic Primer 128g

  • Storage Temperature : -40°C
  • Viscosity : 2 mPa.s (cP) Brookfield
  • Color : Green
  • Curing Type : Not applicable
  • Application : Cure acceleration of LOCTITE®
    anaerobic products

LOCTITE® SF 7649 is designed to promote the curing speed of LOCTITE anaerobic adhesives and sealants without any significant loss of joint strength. It is especially recommended for applications with passive metals or inert surfaces and with large bond gaps. LOCTITE SF 7649 offers good performance at low cure temperatures, and is recommended when the application temperature is below 15°C.

  • Increases cure speed on passive and inactive surfaces
  • For large bond gaps
  • For low-temperature curing (< 5°C)
LOCTITE® SF 7649™ is used where increased cure speed of
anaerobic products is required. It is especially
recommended for applications with passive metals or inert
surfaces and with large bond gaps. LOCTITE® SF 7649™ is
particularly recommended when prevailing temperature is low
(<15 °C)
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.
NSF International

Registered to NSF Category P1 for use as a sealant where
there is no possibilty 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.
Handling precautions

Activator must be handled in a manner applicable to highly
flammable materials and in compliance with relevant local
The solvent can affect certain plastics or coatings. It is
recommended to check all surfaces for compatibility before

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
For safe handling information on this product, consult the
Safety Data Sheet (SDS).
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 1- month.
    Contamination of the surface before bonding should be
  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 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.

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.
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