Loctite SF 7649 Activator Primer N 4.5OZ Aerosol
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Product Description
Loctite SF 7649 (Activator N Primer) 4.5 oz aerosol, code 21348. Accelerator for Loctite anaerobic threadlockers, retaining compounds and gasket makers on inactive metal substrates (stainless steel, aluminium, zinc, cadmium plate). Reduces cure time by 3-5× on non-active surfaces. Also enables anaerobic cure at low temperatures (-20 °C). Direct replacement for the legacy Loctite 707 (Locquic Primer T). See our Loctite / Weicon / Permatex / ThreeBond adhesive cross-reference guide.
Technical Specifications
- Solvent-based (acetone carrier) activator, green-dyed, Grade N. Increases cure speed and breakaway torque of Loctite anaerobic threadlockers, retaining compounds and sealants on inactive (passive) metals -- stainless steel, plated, anodised and zinc surfaces -- and where service temperature is low (below 15 degC); widens the cure gap. Apply, allow solvent to flash off, then apply the anaerobic adhesive; on-part life up to approx 30 days. Highly flammable (acetone); specific gravity approx 0.74. Meets Mil-S-22473E Grade N Form R; ASTM D5363. Use with Loctite 222 / 243 / 271 / 638 and similar anaerobics. Henkel order no. 21348, 4.5 oz (90 ml) aerosol.
- Fill size
- 4.5 oz
- Specific gravity
- 0.74
- Standards
- Mil-S-22473E, ASTM D5363
Standards & Compliance
- Temperature Range
- Apply below 15 degC service or on inactive metals
- HS Code
- 3810.10
Product Documentation
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Catalogue entry last verified: 2026-08-29. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 21348?
- 21348 can be ordered from cballast.com as a Loctite catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Loctite product?
- The manufacturer part number is 21348.
- What is the HS code for 21348?
- The customs tariff (HS) code for 21348 is 3810.10.
- Who manufactures 21348?
- 21348 is a Loctite product in the Tools & Workshop Consumables range.
- Is a datasheet available for 21348?
- Yes — the 21348 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 21348?
- The minimum order quantity is 1.
- Is 21348 available?
- Yes — 21348 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).