--- product_id: 415036666 title: "SRA Soldering Products #312 Flux Pen Low-Solids, No-Clean 10ml - Refillable" brand: "sra soldering products" price: "€ 36.36" currency: EUR in_stock: true reviews_count: 5 category: "Sra Soldering Products" url: https://www.desertcart.hr/products/415036666-sra-soldering-products-312-flux-pen-low-solids-no-clean store_origin: HR region: Croatia --- # Instant wetting flux Eco-friendly & refillable 10ml refillable pen SRA Soldering Products #312 Flux Pen Low-Solids, No-Clean 10ml - Refillable **Brand:** sra soldering products **Price:** € 36.36 **Availability:** ✅ In Stock ## Summary > ♻️🖊️ Flux smarter, solder cleaner — the future of precision rework is here! ## Quick Answers - **What is this?** SRA Soldering Products #312 Flux Pen Low-Solids, No-Clean 10ml - Refillable by sra soldering products - **How much does it cost?** € 36.36 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/415036666-sra-soldering-products-312-flux-pen-low-solids-no-clean) ## 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 - • **Universal Compatibility:** Works seamlessly with both lead and lead-free solders across automotive, telecom, and computing industries. - • **Safe & Certified Quality:** Halide, resin, and rosin-free formula meets IPC-ANSI J-STD-004 standards and RoHS compliance. - • **Fast & Reliable Performance:** Instant wetting action accelerates solder flow, cutting down your project time significantly. - • **Precision Rework, Zero Mess:** No-clean low solids flux for flawless SMT, SMD, and through-hole soldering without residue cleanup. - • **Sustainable & Cost-Effective:** Refillable pen design reduces waste and saves money—join the green soldering revolution. ## Overview The #312 Flux Pen Low-Solids, No-Clean 10ml is a refillable, environmentally friendly flux pen designed for high-quality PCB soldering. It offers instant wetting, is free from halides, resin, and rosin, and leaves non-corrosive, non-conductive residues that require no post-cleaning. Compatible with lead and lead-free solders, it meets IPC-ANSI J-STD-004 and RoHS standards, making it a reliable, mess-free solution for professionals in automotive, telecom, and computing sectors. ## 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, throughhole, mixed technology, and surface mount assemblies while eliminating the need for a post cleaning operation. Residues are NonCorrosive and NonConductive. If removal of the residue is needed then it can be cleaned with warm water. Flux conforms to IPCANSIJSTD004, Type ORL0. This Product is RoHS Compliant Review: Seemed to work as expected. Haven't soldered anything for 30 years but old habits come back quickly. Pen was shipped well and seems to be a quality product. Review: 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. ## 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 | | ASIN | B008OC0E5M | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #62,675 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #160 in Solder, Solder Fluxes & Pastes | | Customer Reviews | 4.6 4.6 out of 5 stars (1,008) | | Customer reviews | 4.6 4.6 out of 5 stars (1,008) | | Date First Available | 17 October 2013 | | Date First Available | 17 October 2013 | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 18 g | | Item model number | PEN-NC | | Item model number | PEN-NC | | Manufacturer | SRA | | Manufacturer | SRA | | Part number | PEN-NC | | Product Dimensions | 13.72 x 2.54 x 0.76 cm; 18 g | | Product Dimensions | 13.72 x 2.54 x 0.76 cm; 18 g | | Size | No-Clean Pen | ## Images ![SRA Soldering Products #312 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 ### ⭐⭐⭐⭐⭐ Review *by H***H on 27 September 2022* Seemed to work as expected. Haven't soldered anything for 30 years but old habits come back quickly. Pen was shipped well and seems to be a quality product. ### ⭐⭐⭐⭐⭐ Review *by J***A on 22 October 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. ### ⭐⭐⭐⭐⭐ Review *by N***. on 9 September 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. ## 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.hr/products/415036666-sra-soldering-products-312-flux-pen-low-solids-no-clean](https://www.desertcart.hr/products/415036666-sra-soldering-products-312-flux-pen-low-solids-no-clean) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-11*