--- product_id: 11899547 title: "Kester RF741 No-Clean Electronics Rework Flux 6cc Syringe" brand: "kester" price: "$41.84" currency: USD in_stock: true reviews_count: 8 category: "Kester" url: https://www.desertcart.us/products/11899547-kester-rf741-no-clean-electronics-rework-flux-6cc-syringe store_origin: US region: United States of America --- # 18 gauge precision tip 6cc precision syringe High-viscosity no-clean flux Kester RF741 No-Clean Electronics Rework Flux 6cc Syringe **Brand:** kester **Price:** $41.84 **Availability:** ✅ In Stock ## Summary > 💡 Flux like a pro—precision, purity, and performance in every drop! ## Quick Answers - **What is this?** Kester RF741 No-Clean Electronics Rework Flux 6cc Syringe by kester - **How much does it cost?** $41.84 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/11899547-kester-rf741-no-clean-electronics-rework-flux-6cc-syringe) ## Best For - kester enthusiasts ## Why This Product - Trusted kester brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Stay-Put Viscosity:** High-viscosity formula ensures flux stays exactly where you apply it, eliminating mess and waste. - • **Crystal Clear Residue:** Almost colorless, no-clean residue leaves your repairs looking flawless and professional. - • **Versatile Compatibility:** Works seamlessly with most no-clean solders and fluxes for QFP, BGA, and through-hole repairs. - • **Lead-Free & RoHS Compliant:** Eco-conscious soldering with a flux that meets strict environmental standards. - • **Precision Dispensing Power:** 6cc syringe delivers enough flux for 15-20 BGA repairs—never run dry mid-project. ## Overview Kester RF741 is a 6cc high-viscosity, no-clean electronics rework flux designed for precision BGA and QFP repairs. Featuring an 18 gauge dispensing tip, it delivers controlled application with minimal residue. Lead-free and RoHS compliant, it offers excellent thermal stability and compatibility with most no-clean solders, making it the go-to choice for professional-grade PCB rework and prototype projects. ## Description Designed for BGA and QFP repair. 6 CC syringe for convenient dispensing during electronic repairs.TekLine TRF741 is a high-viscosity No-Clean paste flux developed for printed circuit board rework or repair. TRF741 is effective for prototype work where a small amount of flux is needed on a specific area of a board or assembly. The high viscosity flux stays in place until soldering occurs. Excellent performance in applications requiring a flux having good thermal stability such as surface mount component or repair.It is the ideal choice for QFP or BGA rework operations. It is also well suited for use with through-hole repair operations.Residues that remain after soldering are almost colorless, leaving a visually appealing repair. The residue is safe to be left on the assembly after soldering. Review: This is good stuff - This is some of the best flux I've used. Makes solder flow through things that used to be a royal PITA. Note: it does seem to be more corrosive to iron tips than standard flux, but I was expecting that. Review: Good for emitter swapping on flashlights - Works well for flashlights. That's all I use it for so I can't speak to how well it works for other things. ## Features - 6cc syringe contains enough flux for 15-20 BGA repairs - High Viscosity- stays where you put it. - Compatible with most no-clean solders and fluxes. - Lead Free - RoHS compliant. - 18 gauge dispensing tips as pictured for precision dispensing of flux. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CI73TTW | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #139,503 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #130 in Soldering Flux #654 in Soldering Parts & Accessories #2,997 in Welding Equipment & Accessories | | Customer Reviews | 4.1 4.1 out of 5 stars (83) | | Date First Available | April 24, 2013 | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 1.58 ounces | | Item model number | TRF741-M | | Manufacturer | Kester | | Material | lead | | Package Dimensions | 6.2 x 1.6 x 0.8 inches | | Part Number | TRF741-M | ## Images ![Kester RF741 No-Clean Electronics Rework Flux 6cc Syringe - Image 1](https://m.media-amazon.com/images/I/31aMwm0di5L.jpg) ## Questions & Answers **Q: hi again, would this be friendly-same with-to the kester 245 flux core ? thanks** A: Hi I’m no expert at all but from my experience and for the purposes that I use it for yes it is very much like the 245 cored flux. To be honest this is one of if not my favorite flux all one needs is just a tiny amount and it wets up very good. It’s a great product. **Q: Tekline trf741 or kester or am i confused about something? kind of new to soldering hope you can clear up my confusion. thanks** A: Depends on what you are soldering. If it's simple point-to-point or through-hole, you probably won't need anything more than rosen-core solder (YMMV). If you're doing SMD, then a tacky flux is good. My preferred tack flux is SRA's TF5000. As per the MSDS, it has less toxic chemicals in it than does Kester. https://www.amazon.com/dp/B00JMUWS04/ref=cm_sw_r_cp_apa_i_P46JFbB78PXK6 ## Customer Reviews ### ⭐⭐⭐⭐⭐ This is good stuff *by J***H on April 7, 2024* This is some of the best flux I've used. Makes solder flow through things that used to be a royal PITA. Note: it does seem to be more corrosive to iron tips than standard flux, but I was expecting that. ### ⭐⭐⭐⭐⭐ Good for emitter swapping on flashlights *by D***D on August 3, 2023* Works well for flashlights. That's all I use it for so I can't speak to how well it works for other things. ### ⭐⭐⭐⭐⭐ Follow-up After The Sale. *by J***E on May 15, 2018* I'm looking for a tacky flux that I can use with my desoldering gun on PCBs. Kester RF741 was recommended in one of the videos I watched, so I thought I'd start with it. Most people are selling 30cc tubes of it for approx $24, but I didn't want to spend that much on something I might not like. I then came across CML's repackaging of it in 6cc syringes with a dispenser tip. I like the convenience of a dispenser tip so I can precisely put the flux where I want it, instead of having to scoop some out of a 30cc tube with a Q-tip. *rolls eyes* I have two other fluxes ordered, and will compare the three to see which I like. Regardless, the reason I'm giving this product five stars is because of the follow-up by CML. They sent me an email after the sale, asking me to review it and if I had any problems to please reply to that email and "A REAL PERSON will respond to you as soon as possible." In this age of off-shored Customer Support, the fact that a vendor wants to insure I'm happy with the purchase is important to me. It's one of the criteria I use to determine who I'll buy from in the future. CML made a good first step with that email. --- ## 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.us/products/11899547-kester-rf741-no-clean-electronics-rework-flux-6cc-syringe](https://www.desertcart.us/products/11899547-kester-rf741-no-clean-electronics-rework-flux-6cc-syringe) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-05*