--- product_id: 1778065 title: "SRA #312 Soldering Flux Pen Low-Solids, No-Clean 10ml - Refillable" brand: "sra soldering products" price: "552092₫" currency: VND in_stock: true reviews_count: 10 category: "Sra Soldering Products" url: https://www.desertcart.vn/products/1778065-sra-312-soldering-flux-pen-low-solids-no-clean-10ml store_origin: VN region: Vietnam --- # Instant wetting flux Eco-friendly & no waste 10ml refillable pen SRA #312 Soldering Flux Pen Low-Solids, No-Clean 10ml - Refillable **Brand:** sra soldering products **Price:** 552092₫ **Availability:** ✅ In Stock ## Summary > ♻️🖊️ Flux smarter, solder cleaner — the future of flawless fixes! ## Quick Answers - **What is this?** SRA #312 Soldering Flux Pen Low-Solids, No-Clean 10ml - Refillable by sra soldering products - **How much does it cost?** 552092₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/1778065-sra-312-soldering-flux-pen-low-solids-no-clean-10ml) ## Best For - sra soldering products enthusiasts ## Why This Product - Trusted sra soldering products brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **No-Clean, No Hassle:** Leaves non-corrosive, non-conductive residues—skip the post-solder cleanup ritual. - • **Eco-Chic Sustainability:** Refillable, halide-free flux pen that champions green soldering without compromise. - • **Made in the USA Quality:** Crafted to IPC-ANSI-J-STD-004 standards for professional-grade reliability. - • **Universal Compatibility:** Seamlessly works with both lead and lead-free solders across automotive, telecom, and computing. - • **Precision Rework Mastery:** Effortlessly touch up SMT, SMD, and through-hole joints with pinpoint accuracy. ## Overview The SRA #312 Soldering Flux Pen is a 10ml refillable, no-clean, low-solids flux designed for precise rework on SMT, SMD, and through-hole solder joints. Environmentally friendly and halide-free, it delivers instant wetting and leaves non-corrosive, non-conductive residues that require no post-cleaning. Compatible with lead and lead-free solders, this USA-made flux pen meets IPC-ANSI-J-STD-004 standards, making it an essential tool for professionals in automotive, telecom, and computer electronics. ## Description This is the first environmentally friendly Flux Pen that can be refilled for a cost effective flux solution. Superior fluxing ability with Instant wetting Made in the USA This flux is free of any halides, resin, or rosin. This flux was designed for soldering high quality electronic printed circuit boards (PCBs), such as, through-hole, mixed technology, and surface mount assemblies while eliminating the need for a post cleaning operation. Residues are Non-Corrosive and Non-Conductive. If removal of the residue is needed then it can be cleaned with warm water. Flux conforms to IPC-ANSI-J-STD-004, Type ORL0. This Product is RoHS Compliant Review: Easy to Use and Works Well. - Pros: Works well, easy to apply, no mess Cons: None I ordered this soldering flux pen as an alternative to the rosin-based solder I was using. I figured this would be a much easier way of applying solder quickly to wires and PCBs and would speed up my solder jobs since it doesn't need to be cleaned up. I was completely right; this thing is a huge time-saver. A quick dab on a PCB solder pad and a quick swipe across the tip of a wire and the solder flows and sticks just like it would had I used the rosin flux. The pen is super easy to use as it's basically a flux marker. To get it started, just press down the tip against a solid surface and the flux flows easily out of the pen. The back of the pen has a removable cap that makes it easy to refill the pen when the flux runs out. The flux used in this pen is quite nice. It's thin enough to quickly and easily coat PCBs and wires and leaves no mess. It's non-corrosive and non-conductive, so you don't have to worry about cleaning up afterwards. There's 10ml of flux in this pen so it should last quite a while before needing to be refilled. It doesn't have a strong or unpleasant smell but can come out of the felt tip quite quickly if you're not careful. I'd say this pen is a must-have in any soldering kit or toolbox. Overall, I'd say this soldering flux pen is totally worth 5 stars. It works great, is super easy to use, and leaves no mess. Review: Dose exactly what it says it should do!! - I’ve never owned a flux pen before. This has been amazing. It’s so much easier to control. It fits nicely in my hand and the tip retains the flux nicely so it doesn’t dry out between solder sessions. The no clean flux is a game changer as it doesn’t leave a mess to clean up later. It functions as expected and is a good value for the money. I would definitely recommend this and will be buying another one for my to go bag. ## Features - For rework and touch-up of SMT, SMD, and through hole solder joints - Contains 10 ml of No-Clean Low Solids Flux - Suitable for automotive, computer, telecom - Environmentally Friendly Refillable Pen - Compatible with Lead and Lead-Free Solders ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008OC0E5M | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #31,337 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #38 in Soldering Flux #122 in Soldering Parts & Accessories #501 in Welding Equipment & Accessories | | Customer Reviews | 4.6 4.6 out of 5 stars (1,044) | | Date First Available | July 24, 2012 | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 0.634 ounces | | Item model number | PEN-NC | | Manufacturer | SRA | | Material | Flux | | Part Number | PEN-NC | | Product Dimensions | 5.4 x 1 x 0.3 inches | | Size | No-Clean Pen | ## Images ![SRA #312 Soldering Flux Pen Low-Solids, No-Clean 10ml - Refillable - Image 1](https://m.media-amazon.com/images/I/41stXrl7a2L.jpg) ## Questions & Answers **Q: What is the difference between the different SRA numbers? For example this one says SRA# 312 and another is SRA #99-20 and there are even more.** A: Flux normally comes in three different strengths, light (no-clean), normal (RMA), and strong (Water Soluble). #312 appears to be the weakest one and probably best for light work on sensitive materials. #90-20 appears to be the medium strength and probably the best for general all around use. #80 "This is a high activity halide, Neutral organic acid (OA) flux formulated for difficult-to-solder surfaces where activated rosin fluxes and less active OA fluxes cannot be used." (and probably not needed except for extreme situations).References: http://sra-solder.com/sra-312-no-clean-flux-pen-refillable/http://sra-solder.com/sra-99-20-rma-rosin-flux-pen-refillable/http://sra-solder.com/sra-80-water-soluble-flux-pen-refillable/ **Q: What do you use to refill with, how, what brand, etc...? I want to try but want to know before I order and need more of something that I do not have.** A: This is the same pen with a bottle holding 5 refills included http://www.amazon.com/SRA-312-No-Clean-Flux-Refill/dp/B008Q1F92E **Q: Can this flux be used to solder 2 pieces of magnet wire together? If not, what flux do I have to use? Thank you a lot!** A: I'm honestly not to sure what you mean by two magnet wire? I'm imagining you mean joining two solid (magnetic) rods together? In this case I would imagine a 50/50 lead/tin solder however, I'm not sure what the magnetic rods consist of. You may want to consider a mig/tac. **Q: I make jewelry and I need to solder some pieces together. Will this work for it?** A: This is flux so you would need solder. This is mainly used for electronics ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy to Use and Works Well. *by J***A on October 22, 2015* Pros: Works well, easy to apply, no mess Cons: None I ordered this soldering flux pen as an alternative to the rosin-based solder I was using. I figured this would be a much easier way of applying solder quickly to wires and PCBs and would speed up my solder jobs since it doesn't need to be cleaned up. I was completely right; this thing is a huge time-saver. A quick dab on a PCB solder pad and a quick swipe across the tip of a wire and the solder flows and sticks just like it would had I used the rosin flux. The pen is super easy to use as it's basically a flux marker. To get it started, just press down the tip against a solid surface and the flux flows easily out of the pen. The back of the pen has a removable cap that makes it easy to refill the pen when the flux runs out. The flux used in this pen is quite nice. It's thin enough to quickly and easily coat PCBs and wires and leaves no mess. It's non-corrosive and non-conductive, so you don't have to worry about cleaning up afterwards. There's 10ml of flux in this pen so it should last quite a while before needing to be refilled. It doesn't have a strong or unpleasant smell but can come out of the felt tip quite quickly if you're not careful. I'd say this pen is a must-have in any soldering kit or toolbox. Overall, I'd say this soldering flux pen is totally worth 5 stars. It works great, is super easy to use, and leaves no mess. ### ⭐⭐⭐⭐⭐ Dose exactly what it says it should do!! *by N***. on September 9, 2025* I’ve never owned a flux pen before. This has been amazing. It’s so much easier to control. It fits nicely in my hand and the tip retains the flux nicely so it doesn’t dry out between solder sessions. The no clean flux is a game changer as it doesn’t leave a mess to clean up later. It functions as expected and is a good value for the money. I would definitely recommend this and will be buying another one for my to go bag. ### ⭐⭐⭐⭐⭐ Must have *by Z***Y on March 23, 2025* Value for money, great build quality, functionality is as it should, size of paint marker, flow speed is good, ease of removal of extra flux ## Frequently Bought Together - SRA #312 Soldering Flux Pen Low-Solids, No-Clean 10ml - Refillable - Diatone Mamba 4pcs FPV Soldering Practice Board for FPV Drone Beginners, Tools for Flight controller ESC Soldering Practice - Kester 44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube --- ## 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.vn/products/1778065-sra-312-soldering-flux-pen-low-solids-no-clean-10ml](https://www.desertcart.vn/products/1778065-sra-312-soldering-flux-pen-low-solids-no-clean-10ml) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-03*