--- product_id: 42038532 title: "Loctite SF 7649 Primer and Cleaner" brand: "loctite" price: "€ 77.93" currency: EUR in_stock: true reviews_count: 3 category: "Loctite" url: https://www.desertcart.com.cy/products/42038532-loctite-sf-7649-primer-and-cleaner store_origin: CY region: Cyprus --- # Long on-part life Optimizes metal bonding Effective below 15°C Loctite SF 7649 Primer and Cleaner **Brand:** loctite **Price:** € 77.93 **Availability:** ✅ In Stock ## Summary > 🔗 Lock it down, even when the temps drop! ## Quick Answers - **What is this?** Loctite SF 7649 Primer and Cleaner by loctite - **How much does it cost?** € 77.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/42038532-loctite-sf-7649-primer-and-cleaner) ## Best For - loctite enthusiasts ## Why This Product - Trusted loctite brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Extended On-Part Life:** Keeps surfaces primed and ready for longer, reducing rework and downtime. - • **Cold-Weather Performance:** Ensures reliable curing and adhesion even in temperatures below 15°C—no more seasonal delays. - • **Metal Surface Specialist:** Specifically formulated to clean and activate passive or inert metals for maximum bond strength. - • **Accelerated Cure Activation:** Boosts anaerobic adhesive curing speed without compromising joint integrity—get the job done faster. - • **Water-Resistant Satin Finish:** Provides a durable, satin finish that resists moisture, protecting your bonds in challenging environments. ## Overview Loctite SF 7649 Primer and Cleaner is a solvent-based activator designed to enhance the curing speed and bond strength of anaerobic adhesives on passive metals and inert surfaces. With a long on-part life and reliable performance at low temperatures (below 15°C), it ensures durable, water-resistant bonds ideal for professional-grade metal applications. ## Description 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. Review: Cleaner/Primer for loctite - This is the good stuff. If you ever wondered if thread locker or sleeve locking compound would hold something that is greasy or dirty, it really doesn't - at least not very well. Use this stuff to clean down to bare metal, apply the locking compound, and it will hold much better. Not only is it a primer, but it is also an activator, and (according to the label) it helps things cure faster. I don't know about that, but I do know I had a bolt that kept coming loose even with the high strength red loctite, and when using this, it has stayed tight. I never could get the threads perfectly 'clean' before, and I think that is the difference. There may be other things that would have worked, but I can say for sure this did the job. Review: Good Price - My coworker, Mechanic, needed this product as he really liked it. So I found a good price on desertcart. ## Features - A solvent-based primer that features very long on-part life ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000HZJEF0 | | Age Range Description | Adult | | Best Sellers Rank | #99,499 in Automotive ( See Top 100 in Automotive ) #65 in Automotive Primers | | Brand Name | Loctite | | Color | Clear | | Color Code | 000000 | | Container Type | Can | | Coverage | 25 | | Customer Reviews | 4.8 4.8 out of 5 stars (40) | | Finish Type | Satin | | Included Components | bottle | | Item Form | Liquid | | Item Volume | 4.5 Fluid Ounces | | Item Weight | 4.8 Ounces | | Manufacturer | Loctite | | Model Number | 21348 | | Part Number | 21348 | | Size | 4.5 Fl Oz (Pack of 1) | | Special Features | Long On-Part Life, Low Temperature Functionality | | Specific Uses For Product | primer | | Surface Recommendation | Metal | | Unit Count | 4.5 Fluid Ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Loctite - **Color:** Clear - **Finish Type:** Satin - **Item Form:** Liquid - **Item Volume:** 4.5 Fluid Ounces - **Size:** 4.5 Fl Oz (Pack of 1) - **Special Feature:** Long On-Part Life, Low Temperature Functionality - **Specific Uses For Product:** primer - **Surface Recommendation:** Metal - **Unit Count:** 4.5 Fluid Ounces ## Images ![Loctite SF 7649 Primer and Cleaner - Image 1](https://m.media-amazon.com/images/I/416FmqWWhkL.jpg) ## Questions & Answers **Q: Is there a less expensive substitute (acetone for example)?** A: I’m not sure if there’s any substitutes all I know is Loctite is an industry standard and it works good ## Customer Reviews ### ⭐⭐⭐⭐⭐ Cleaner/Primer for loctite *by J***A on September 17, 2025* This is the good stuff. If you ever wondered if thread locker or sleeve locking compound would hold something that is greasy or dirty, it really doesn't - at least not very well. Use this stuff to clean down to bare metal, apply the locking compound, and it will hold much better. Not only is it a primer, but it is also an activator, and (according to the label) it helps things cure faster. I don't know about that, but I do know I had a bolt that kept coming loose even with the high strength red loctite, and when using this, it has stayed tight. I never could get the threads perfectly 'clean' before, and I think that is the difference. There may be other things that would have worked, but I can say for sure this did the job. ### ⭐⭐⭐⭐⭐ Good Price *by A***R on January 2, 2022* My coworker, Mechanic, needed this product as he really liked it. So I found a good price on Amazon. ### ⭐⭐⭐⭐ Quality *by D***R on February 26, 2021* It works like it should ## Frequently Bought Together - Loctite SF 7649 Primer and Cleaner - ESKONKE Retaining Compound Green 638 Sleeve Retainer High Strength Cylindrical Metal Components Assemblies Locking and Sealing Anaerobic Glue 1.69 Oz/50 ml --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.cy/products/42038532-loctite-sf-7649-primer-and-cleaner](https://www.desertcart.com.cy/products/42038532-loctite-sf-7649-primer-and-cleaner) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-04-25*