# Rowow

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Open-source electrochemical critical mineral and precious metal recovery

## Sitemaps

- [XML Sitemap](https://rowow.net/sitemap.xml): Contains all public & indexable URLs for this website.

## Posts

- [Blog](https://rowow.net/blog/): Plain, honest updates on electrochemical metal recovery, critical minerals, e-waste and tailings processing, and our open-source work.
- [Our open-source ion exchange membrane costs about $1 a square foot](https://rowow.net/open-source-ion-exchange-membrane/): Commercial ion exchange membranes list at roughly $229 to $242 per square foot. That single cost line keeps a lot of electrochemistry out of reach for small labs, recyclers, and independent researchers. So we built one that almost anyone can make, and we put the recipe online for free. What it is Our membrane is

## Pages

- [Home](https://rowow.net/): Open-source electrochemical recovery of precious metals and rare earths. One chloride leachate covers 53 of the 60 US critical minerals. S.E.M Technology by Rowow LLC.
- [Liability Agreement](https://rowow.net/liability-agreement/): Review Rowow's liability agreement and terms governing the use of our electrochemical precious metal recovery technology and services.
- [Open Technology Charter](https://rowow.net/open-technology-charter/): Open Technology Charter Draft v1.0 · Request for Comment. This is an early public draft, shared to gather feedback before formal legal and practitioner review. It is a statement of intent, not final, and creates no binding legal commitment yet. Help shape it: open an issue or discussion on GitHub, or email info@rowow.net.Version 1.0 (draft),
- [Solutions](https://rowow.net/solutions/): Test S.E.M Technology on your own feed: a $5,000 demonstration run in our lab, or a $22,900 research and demonstration unit installed at your site with crew training.
- [S.E.M Technology](https://rowow.net/sem-tech/): How S.E.M Technology recovers precious metals and rare earths from ore, e-waste, and tailings, which of the 60 US critical minerals one leachate covers, and how the open-source membrane works.
- [XRF Analysis Service Terms](https://rowow.net/xrf-service-terms/): These terms apply to every XRF analysis order placed with Rowow LLC, including the single sample service and the six sample service. Please read them before shipping material. Instrument and status of results Testing is performed on a Rigaku NEX DE laboratory-grade desktop XRF spectrometer. Results are not a certified, accredited, or otherwise official analysis.
- [S.E.M Technology Periodic Table](https://rowow.net/periodic-table/): ReferenceS.E.M Technology periodic tableWhat each naturally occurring element does inside the chloride electrolysis loop, and which of the 60 US critical minerals the one leachate covers.How S.E.M Technology works S.E.M Technology critical minerals coverage: 53 of 60 in a single leachate How S.E.M Technology handles each element Critical minerals coverage
- [Rare Earth Recovery from Mine Tailings](https://rowow.net/rare-earth-recovery-from-tailings/): Recover rare earths and critical minerals from mine tailings and remediate heavy metals in the same pass, using Rowow's closed-loop S.E.M Technology electrochemical process.
- [E-Waste Gold Recovery and Catalytic Converter Recycling](https://rowow.net/e-waste-gold-catalytic-converter-recovery/): Recover gold, platinum, and palladium from scrap electronics and catalytic converters with S.E.M Technology, a closed-loop electrochemical process with no smelter.
- [Gold and Platinum Group Metal Extraction Technology](https://rowow.net/gold-platinum-group-metal-extraction/): Recover gold and the full platinum group from ore and concentrate with S.E.M Technology, a closed-loop electrochemical process that runs on salt water and electricity.
- [Patents](https://rowow.net/patents/): Explore Rowow's patents covering innovative electrochemical methods for precious and rare earth metal recovery. Our IP protects breakthrough refining technology.
- [Patent Non-Assertion Pledge](https://rowow.net/patent-pledge/): Patent Non-Assertion Pledge Proposed draft · NOT YET IN EFFECT. This pledge is published for public comment and is pending review by a registered patent attorney. It does not yet create any binding commitment. It will take effect only if and when Rowow adopts a final version after that review. Comments welcome on GitHub or
- [Staged Disclosure Policy](https://rowow.net/staged-disclosure-policy/): Staged Disclosure Policy Draft v1.0 · Request for Comment. An early public draft, shared to gather feedback before formal review. Not final. Suggest changes on GitHub or at info@rowow.net.Version 1.0 (draft), 2026-06-17 · Companion to the Open Technology Charter.PurposeOur research involves hazardous chemistry and processes, and over time it will span many methods and industries
- [Support Our Research](https://rowow.net/support-our-research/): Help fund Rowow's open-source S.E.M Technology research, or partner with us on precious metal and critical mineral recovery. Donate, run a pilot, or contribute to the repository.
- [Privacy Policy](https://rowow.net/privacy-policy/): Privacy Policy (ROWOW LLC) Effective Date: 02/16/2026Last Updated: 02/22/2026 Who We Are ROWOW LLC (“Rowow,” “we,” “us,” or “our”) operates the website located at: https://rowow.net (the “Site”).This Privacy Policy explains how we collect, use, disclose, and retain information when you visit our Site, place an order, contact us, or use our products or services. Contact:
- [FAQ](https://rowow.net/faq/): Find answers to frequently asked questions about Rowow's electrochemical precious metal recovery technology, processes, pricing, and partnership opportunities.
- [Resources & Updates](https://rowow.net/resources/): Stay up to date with Rowow's latest resources, technical updates, and news about our electrochemical precious and rare earth metal recovery technology.
- [Contact](https://rowow.net/contact/): Contact the Rowow team to learn more about our electrochemical precious metal recovery technology. We're ready to answer your questions and discuss solutions.
- [About](https://rowow.net/about/): Rowow is an innovative company pioneering electrochemical technology for precious and rare earth metal recovery. Meet the team driving sustainable refining.
- [Press](https://rowow.net/press/): Independent press coverage of Rowow's open-source S.E.M Technology, including Hackaday and NightHawkInLight on the DIY ion exchange membrane that costs about $1 per square foot.
- [Book a Meeting](https://rowow.net/book-a-meeting/): Schedule a meeting with the Rowow team to see our electrochemical precious metal recovery technology in action. Book a 30 minute introductory call today.
- [Refund and Returns Policy 2-22-2026](https://rowow.net/refund_returns/): Read Rowow's refund and returns policy for products and services related to our electrochemical precious metal recovery technology and equipment.
- [Shop](https://rowow.net/shop/): Rowow's shop: the cast ion exchange membrane, the V1 electrolysis cell, and XRF analysis services for S.E.M Technology research.
- [My Account](https://rowow.net/my-account/): Sign in to your Rowow account to manage orders, access customer resources, and stay updated on your electrochemical metal recovery projects.
- [Customer Cabinet](https://rowow.net/customer-cabinet/): Access your Rowow customer cabinet to manage your account, track orders, and access exclusive resources for electrochemical metal recovery services.

## Products

- [Demonstration Run, 30 to 50 lb of Your Feed](https://rowow.net/product/processing-demonstration-run/): You ship 30 to 50 lb of crushed feed. We run it through the Continuous Mining Unit, plate out a metal concentrate, analyze four fractions by XRF, and send your materials back with photos, video and a written conclusion. $5,000 flat, starting with a paid 30 minute intro call.
- [On-Site Research and Demonstration Unit](https://rowow.net/product/on-site-research-demonstration-unit/): A fully assembled, factory-tested Continuous Mining Unit that runs 30 to 50 lb of feed per batch, installed and commissioned at your site, with your crew trained to run it. $22,900 for the unit; installation is quoted separately.
- [V1 Electrolysis Cell Kit, Unassembled](https://rowow.net/product/v1-electrolysis-cell-kit/): Flat pack V1 electrolysis cell: pre-cut PVC foam body, clear PVC face plates and pipe sections. You bond it. Membranes, electrodes and power sold separately.
- [Cation Exchange Membrane Sheet, 11 x 8.5 in](https://rowow.net/product/cation-exchange-membrane-sheet/): One 11 x 8.5 in fiberglass-reinforced PVC cation exchange membrane sheet, for cutting to fit your own cell. Ships wet in a sealed bag.
- [$1 Tip](https://rowow.net/product/tip/): A voluntary $1 contribution to Rowow open-source membrane and electrolysis cell work. Raise the quantity to give more. Nothing ships.
- [V1 Slide-In Cation Membrane](https://rowow.net/product/v1-slide-in-cation-membrane/): Cation exchange membrane cast into a 19.5 x 12.6 in PVC foam frame, sized for the V1 electrolysis cell slots. Ships wet in a sealed bag.
- [XRF Analysis, Single Sample or Object](https://rowow.net/product/xrf-analysis-single/): One XRF reading on a Rigaku NEX DE: a powder or liquid in a 32 mm cup, or a solid object up to 11 x 11 x 3.5 in. Screening results, not a certified assay.
- [XRF Analysis, Six Samples in Cups](https://rowow.net/product/xrf-analysis-six-samples/): Six powder or liquid samples in 32 mm cups, run as one batch on a Rigaku NEX DE XRF. Screening results, not certified assays.
- [V1 Electrolysis Cell, Assembled](https://rowow.net/product/v1-electrolysis-cell-assembled/): The V1 electrolysis cell built and bonded, ready for your electrodes, power supply and plumbing. Takes up to two slide-in cation membranes, sold separately.
- [Ground Cation Exchange Resin Powder, 16 fl oz](https://rowow.net/product/ground-cation-exchange-resin-powder-16-fl-oz/): Strong acid cation exchange resin, ground to a powder on a high speed grinder and sold as is. One bag holds about 16 fl oz (473 mL) by volume, the amount that fills a 16 oz cup. The powder is not sifted or sized, and some whole beads remain.

## Categories

- [Updates](https://rowow.net/category/updates/)

## Product categories

- [Electrolysis Cells](https://rowow.net/product-category/electrolysis-cell/): Membrane electrolysis cells built from PVC, cut on our CNC router in Florida and sold as a flat pack kit or assembled. The V1 is a PVC cell that takes up to two slide-in cation membranes. A working cell is the kit or the assembled cell plus one or two slide-in membranes. Electrodes, power supply, pumps and fittings are not included. Read the product FAQ and watch the safety video before the first power-up. Cells are sold as is for research, development and testing.
- [Membranes and Resin](https://rowow.net/product-category/membrane/): Cation exchange membranes cast in house from ground ion exchange resin in a PVC binder on fiberglass, and the ground resin itself for casting your own. The casting method is published on GitHub. The V1 slide-in membrane ($100) comes cast into the four windows of a 19.5 x 12.6 in foam frame that fits the V1 cell. The 11 x 8.5 in sheet ($30) is for cutting to fit your own cell. The ground resin powder ($10 for 16 fl oz) is for casting your own. Membranes ship wet in a sealed bag and must not dry out. Rowow runs these membranes in acidic chloride electrolytes; ask before using other electrolytes.
- [Analysis and Processing](https://rowow.net/product-category/testing-analysis/): Elemental screening of your samples on our Rigaku NEX DE benchtop XRF spectrometer, and processing of your material through the Continuous Mining Unit. XRF results are screening results, not certified assays. Read the XRF service terms before you ship. The demonstration run and the on-site unit start with an intro call, so they carry a Request a quote button instead of Add to cart.
- [Tips](https://rowow.net/product-category/other/)
- [V1 Cell](https://rowow.net/product-category/electrolysis-cell/v1-cell/): Everything sold for the V1: the flat pack kit, the assembled cell, and the slide-in membranes that fit its slots. The body is white 3/4 in PVC foam board with 1/4 in clear PVC face plates, about 590 x 271 x 830 mm (23.2 x 10.7 x 32.7 in) overall. It takes up to two slide-in membranes, for a two or three chamber configuration. The kit and the assembled cell have a slide-in membrane option on the product page, so a working cell goes in the cart in one step.
- [Cation Exchange Membranes](https://rowow.net/product-category/membrane/cation-exchange-membranes/): Fiberglass-reinforced cation exchange membranes in two formats: cast into a slide-in frame for the V1 cell, or as a letter size sheet for cutting to fit your own cell. Both ship wet in a sealed bag. Do not let them dry out. Rowow runs these membranes in acidic chloride electrolytes; ask before using other electrolytes.
- [Ion Exchange Resin](https://rowow.net/product-category/membrane/ion-exchange-resin/): Ground strong acid cation exchange resin, the same material we grind in house to cast our heterogeneous membranes. It is not sifted or sized, and some whole beads remain. Sold for research and testing only, not certified or approved for consumer or regulated applications.
- [XRF Analysis](https://rowow.net/product-category/testing-analysis/xrf-analysis/): Ship a powder, a liquid or a solid object and get an elemental reading by XRF on our Rigaku NEX DE. These are screening results, not certified assays. The single listing takes one cup or one object up to 11 x 11 x 3.5 in; the six-sample listing takes six cups in one batch at a lower price per sample. Read the XRF service terms before you ship.
- [Processing Services](https://rowow.net/product-category/testing-analysis/processing-services/): The demonstration run puts 30 to 50 lb of your feed through the Continuous Mining Unit at our lab, $5,000 flat. The research and demonstration unit installed at your site is $22,900 plus installation. Both start with an intro call, not the cart. Full detail, site requirements and limits are on the Solutions page.