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Small light green liquid bottle 1.75 fl oz

Loctite

Loctite SF 7649 Activator Light Green 1.75 fl oz

SKU CH-MDZS-HJ8AH

Acetone-based activator in a 1.75 fl oz bottle speeds anaerobic adhesive cure and meets NSF/ANSI 61 and MIL-S-22473E standards

  • ColorLight Green
  • Speeds anaerobic adhesive cure with acetone-based activator
  • 30-day on-part life allows flexible assembly scheduling
  • Meets ASTM D-5363, MIL-S-22473E, NSF P1 and NSF/ANSI 61 standards
  • Low 2 cps viscosity ensures even coverage on parts
  • 75 fl oz bottle suits production-line dispensing

Purpose and user

Loctite SF 7649 is an acetone-based activator formulated to accelerate the cure of anaerobic adhesives. It is intended for maintenance technicians and assembly operators who need faster fixturing on threadlocking, retaining or sealing applications.

Thermals noise and power

The liquid has a flash point of -2.2 Degrees F and a specific gravity of .79, so it is highly flammable and lighter than water. Viscosity measures 2 cps, allowing thin, even films that evaporate quickly at room temperature. Maximum application temperature is 59 Degrees F; store in a cool, ventilated area away from ignition sources.

Deciding specification

On-part life is 30 day after application, giving a month-long window before the adhesive must be assembled. The product carries NSF/ANSI 61 and CFIA approvals for incidental food contact and meets MIL-S-22473E and ASTM D-5363 standards. Buyers who need a non-acetone carrier or a longer open time should select a different activator.

Highlights

  • Speeds anaerobic adhesive cure with acetone-based activator
  • 30-day on-part life allows flexible assembly scheduling
  • Meets ASTM D-5363, MIL-S-22473E, NSF P1 and NSF/ANSI 61 standards
  • Low 2 cps viscosity ensures even coverage on parts
  • 75 fl oz bottle suits production-line dispensing

Specifications

BrandLoctite
ColorLight Green

Questions about this item

How do I apply the SF 7649 activator to anaerobic adhesive, and what is the common mistake?

Apply activator to the part surface and allow solvent to evaporate before adding adhesive; the frequent error is assembling parts while the acetone base is still wet, which prevents proper curing.

How long can parts sit after applying the SF 7649 activator before the adhesive is applied?

The on-part life is 30 days, so components must be assembled within that window or the activator must be reapplied to ensure cure speed.

What is the maximum service temperature where the SF 7649 activator remains effective?

The maximum application temperature is 59 degrees F; sustained use above this limit reduces activation performance for anaerobic adhesives.

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