--- product_id: 256809677 title: "CAIG LABORATORIES LABS RSF-R80-2 Rosin Flux Soldering 2094258 Paste Jar, 56 g, 1.5\"" brand: "caig laboratories" price: "FREE" currency: JPY in_stock: false reviews_count: 6 category: "Caig Laboratories" url: https://www.desertcart.jp/products/256809677-caig-laboratories-labs-rsf-r80-2-rosin-flux-soldering-2094258 store_origin: JP region: Japan --- # Easy removal with cloth or solvent Solders tough metals like brass & nickel Non-spill, nonflammable, non-corrosive paste CAIG LABORATORIES LABS RSF-R80-2 Rosin Flux Soldering 2094258 Paste Jar, 56 g, 1.5" **Brand:** caig laboratories **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > πŸ”₯ Elevate your solder game with precision and safety! βš™οΈ ## Quick Answers - **What is this?** CAIG LABORATORIES LABS RSF-R80-2 Rosin Flux Soldering 2094258 Paste Jar, 56 g, 1.5" by caig laboratories - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/256809677-caig-laboratories-labs-rsf-r80-2-rosin-flux-soldering-2094258) ## Best For - caig laboratories enthusiasts ## Why This Product - Trusted caig laboratories brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Safety First:** Nonflammable and non-corrosive formula ensures safe handling every time. - β€’ **Compact Power:** 56g jar sized perfectly for professional use and easy storage. - β€’ **Clean & Convenient:** Removes easily with just a cloth or solventβ€”no mess, no stress. - β€’ **Master Tough Metals:** Effortlessly solder challenging metals like brass and nickel for flawless joints. - β€’ **Precision Consistency:** Non-spill paste texture guarantees controlled application without waste. ## Overview CAIG LABORATORIES RSF-R80-2 Rosin Flux Soldering Paste is a 56g, nonflammable, and non-corrosive soldering aid designed to improve solder flow and joint quality, especially on difficult metals like brass and nickel. Its non-spill consistency and easy removal make it a must-have for professionals seeking clean, reliable soldering results. ## Description Dioxin Rosin flux soldering paste Rosin flux helps solder to flow more smoothly creating a better contact and making a better joint. Features: β€’ permits soldering of even difficult metals such as Brass or nickel β€’ can be removed with cloth or solvent β€’ non-spill consistency β€’ nonflammable β€’ non-corrosive β€’ 2 oz. Review: Dissapointed Customer - The product arrived with half the contents leaked out into the packing material. This is dissapointing since I paid for a full container and not half its contents. Review: Finally the flux I remember - Had the Radio Shack branded version bought in the 90s and couldn't find it anymore when I lost it in a move. Tried many others for a few years but once I found the OG version searching one night, I gave them away. The smell, the stickiness, the accidental spill from leaving it on its side and not knowing, wondering how you got it on your desk, all of it was welcomed back once I got this. When you can't get solder to stick, use this and you will have no issues. It does require clean-up but for how well it performs it is worth it. I have ended up with some very professional solder joints. It is also the only flux I use when joining two stranded wires together with a fan and twist joint. It helps the solder to penetrate the joint quickly allowing you to control the solder pool so it's not larger than the wire sheath diameter. ## Features - Permits soldering of even difficult metals such as brass or Nickel - Can be removed with cloth or solvent - Non-spill consistency - Item Package Dimension: 4.0" L x 2.0" W x 1.0" H ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01EYJJEEK | | Best Sellers Rank | #124,589 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #288 in Solder, Solder Fluxes & Pastes | | Item model number | 2094258 | | Manufacturer | CAIG LABS | | Product Dimensions | 10.16 x 5.08 x 20.32 cm; 113.4 g | ## Images ![CAIG LABORATORIES LABS RSF-R80-2 Rosin Flux Soldering 2094258 Paste Jar, 56 g, 1.5" - Image 1](https://m.media-amazon.com/images/I/51NmGCsjhqL.jpg) ![CAIG LABORATORIES LABS RSF-R80-2 Rosin Flux Soldering 2094258 Paste Jar, 56 g, 1.5" - Image 2](https://m.media-amazon.com/images/I/614S8rjt+iL.jpg) ![CAIG LABORATORIES LABS RSF-R80-2 Rosin Flux Soldering 2094258 Paste Jar, 56 g, 1.5" - Image 3](https://m.media-amazon.com/images/I/611hkemdkeL.jpg) ![CAIG LABORATORIES LABS RSF-R80-2 Rosin Flux Soldering 2094258 Paste Jar, 56 g, 1.5" - Image 4](https://m.media-amazon.com/images/I/619t43ZsWuL.jpg) ## Customer Reviews ### ⭐ Dissapointed Customer *by G***A on 14 July 2020* The product arrived with half the contents leaked out into the packing material. This is dissapointing since I paid for a full container and not half its contents. ### ⭐⭐⭐⭐⭐ Finally the flux I remember *by D***C on 26 May 2025* Had the Radio Shack branded version bought in the 90s and couldn't find it anymore when I lost it in a move. Tried many others for a few years but once I found the OG version searching one night, I gave them away. The smell, the stickiness, the accidental spill from leaving it on its side and not knowing, wondering how you got it on your desk, all of it was welcomed back once I got this. When you can't get solder to stick, use this and you will have no issues. It does require clean-up but for how well it performs it is worth it. I have ended up with some very professional solder joints. It is also the only flux I use when joining two stranded wires together with a fan and twist joint. It helps the solder to penetrate the joint quickly allowing you to control the solder pool so it's not larger than the wire sheath diameter. ### ⭐⭐⭐⭐⭐ Great rosin. *by B***N on 25 October 2021* flows very well, would definitely use this product again. Highly recommended ## Frequently Bought Together - CAIG LABORATORIES, Rosin Soldering Flux (Electrical), Jar, 56 Grams, Pack of 1 - Thermaltronics TMT-TC-2 Tip Tinner (20g) in 0.8oz Container - Lesnow solder wick braid 10ft Length Desoldering Wick Braid Remover Tool Solder Sucker 1 piece No-Clean soldering Wick Wire Roll and Disassemble Electrical Components --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/256809677-caig-laboratories-labs-rsf-r80-2-rosin-flux-soldering-2094258](https://www.desertcart.jp/products/256809677-caig-laboratories-labs-rsf-r80-2-rosin-flux-soldering-2094258) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-30*