Solvent-based activator
LOCTITE SF 7649 is a solvent-based activator for surface preparation that provides for low temperature curing.
It 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 low-temperature curing (< 5°C)
For large bond gaps
Technical Information
| Agency Approvals / Specifications | DVGW, WRAS, NSF |
| Breakaway Torque, Steel M10 | 33.0 N·m (295.0 in./lb. ) |
| Colour | Yellow |
| Key Characteristics | Thixotropic, General Purpose, Strength: Medium Strength |
| Operating Temperature | -55.0 - 150.0 °C (-65.0 - 300.0 °F ) |
| Viscosity, 20 RPM | 25000.0 mPa·s |
Cleaning/Activation - It is recommended to use LOCTITE SF 7649 solvent-based activator for surface preparation to degrease and clean surfaces prior to applying adhesive.
Apply a 360° bead to the leading male thread, leaving the first thread free.
For bigger threads, apply both on male and female threads.
(Recommended dispensing equipment: IDH 608996 50ml Hand Pump or IDH 88631 Peristaltic handgun 97001)
Assemble fittings using wrench tightening in accordance with manufacturers' recommendations.
Disassemble with standard hand tools.
If not possible, apply localised heat to approximately 250°C, disassemble while hot.
For corroded or seized parts use LOCTITE® 8040 Freeze and Release.
