LOCTITE SF7452
Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium
Main features
- Cyanoacrylate Adhesive Cure Accelerator
- Fast Assembly Fixturing
- Low-Viscosity Bonding Flow
Product Description
LOCTITE® SF 7452 is a cyanoacrylate adhesive activator designed to significantly increase the cure speed and fixture speed of LOCTITE® instant adhesives. The activator can be applied either before or after adhesive application and is particularly effective for rapid fixturing on production assemblies. It is commonly used in electronics and component assembly applications, including securing wires and coils to PCBs, mounting stand-offs, edge guides, and board stiffeners.
Key Features & Benefits
- Cyanoacrylate adhesive cure accelerator.
- Can be used as a pre- or post-applied activator.
- Provides rapid fixture development.
- Very low viscosity for easy application.
- Suitable for automated and production assembly operations.
- Qualified to Commercial Item Description A-A-3097.
- Compatible with LOCTITE® cyanoacrylate adhesives.
Recommended Applications
- Securing wires and coils to PCBs.
- Tamper-proofing adjustable components.
- Mounting stand-offs and edge guides.
- Board stiffener installation.
- Accelerating fixture speed of cyanoacrylate assemblies.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Appearance
Transparent to slightly hazy liquid Appearance at room temperature.
Specific Gravity
0.79 Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.
For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
Physical Properties
Viscosity
0.4 mPa.s Viscosity is a measurement of a fluid’s resistance to flow.
Viscosity is commonly measured in centiPoise (cP). One cP is defined as
the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP.
A product like honey would have a much higher viscosity -around 10,000 cPs-
compared to water. As a result, honey would flow much slower out of a tipped glass than
water would.
The viscosity of a material can be decreased with an increase in temperature in
order to better suit an application
Additional Information
Technical Properties
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Technology | Activator for Cyanoacrylate | — | CA adhesive accelerator |
| Chemical Type | Organic Disulphide | — | Active ingredient |
| Solvent | Acetone | — | Carrier solvent |
| Appearance | Transparent to Slightly Hazy Liquid | — | As supplied |
| Specific Gravity | 0.79 | — | 23°C |
| Viscosity | 0.4 | mPa·s (cP) | 25°C |
| Drying Time | 30 | seconds | 23°C |
| On-Part Life | 5 | minutes | Typical |
| Approval | A-A-3097 | — | Commercial Item Description |
Technical Properties
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Fixture Time | 10 | seconds | ISO 4587, Steel (grit blasted), LOCTITE® 495, two-side activation |
| Application Method | Pre- or Post-Activation | — | Flexible manufacturing process |
| Activator Open Time | 5 | minutes | Maximum recommended time before bonding |
| Surface Activation | Spray, Brush or Dip | — | Application options |
| Evaporation Requirement | Required Before Bonding | — | Prevents solvent entrapment |
| Rapid Fixture Performance | Excellent | — | For cyanoacrylate adhesive assemblies |
| PCB Assembly Suitability | Suitable | — | Wire and coil securing applications |
| Tamper-Proofing Applications | Recommended | — | Adjustable component locking |
