{"product_id":"fr4-single-side-copper-clad-pcb-laminate-7x10cm-1oz-1-5mm-diy-etching","title":"FR4 Single-Side Copper Clad PCB Laminate — 7×10cm, 1oz Copper, 1.5mm, DIY Etching","description":"\u003ch2\u003eFR4 Single-Side Copper Clad PCB Laminate — 7×10cm, 1oz Copper, 1.5mm, DIY Etching\u003c\/h2\u003e\u003cp\u003eThis FR4 single-side copper clad laminate (CCL) provides a blank copper-coated fiberglass substrate for DIY PCB fabrication by chemical etching, CNC milling, or laser ablation. The 1oz (35μm) copper layer on one side of the 1.5mm FR4 substrate is suitable for most low-to-medium current PCB traces. Used by electronics hobbyists, students, and engineers for prototyping custom PCBs without commercial PCB fabrication lead times.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Size\u003c\/td\u003e\n\u003ctd\u003e7 × 10cm (70 × 100mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubstrate Material\u003c\/td\u003e\n\u003ctd\u003eFR4 fiberglass (UL94 V-0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Thickness\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCopper Layer\u003c\/td\u003e\n\u003ctd\u003eSingle-sided (one side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCopper Weight\u003c\/td\u003e\n\u003ctd\u003e1oz (35μm \/ 0.035mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCopper Purity\u003c\/td\u003e\n\u003ctd\u003e99.9% electrolytic copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface\u003c\/td\u003e\n\u003ctd\u003eBare copper (no solder mask or silkscreen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eDIY PCB Fabrication Methods\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMethod\u003c\/th\u003e\n\u003cth\u003eTools Needed\u003c\/th\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemical etching (toner transfer)\u003c\/td\u003e\n\u003ctd\u003eLaser printer, iron, FeCl3 or Na2S2O8\u003c\/td\u003e\n\u003ctd\u003e~0.5mm traces\u003c\/td\u003e\n\u003ctd\u003eThrough-hole circuits, simple layouts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemical etching (UV photoresist)\u003c\/td\u003e\n\u003ctd\u003eUV lamp, photoresist film, developer\u003c\/td\u003e\n\u003ctd\u003e~0.2mm traces\u003c\/td\u003e\n\u003ctd\u003eFine-pitch SMD circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCNC milling (PCB router)\u003c\/td\u003e\n\u003ctd\u003eCNC router (Genmitsu, 3018 Pro)\u003c\/td\u003e\n\u003ctd\u003e~0.3mm traces\u003c\/td\u003e\n\u003ctd\u003eNo chemicals, fast turnaround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser ablation\u003c\/td\u003e\n\u003ctd\u003eCO2 or diode laser engraver\u003c\/td\u003e\n\u003ctd\u003e~0.3mm traces\u003c\/td\u003e\n\u003ctd\u003eQuick single-layer boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose FR4 Copper Clad Laminate?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFR4 substrate\u003c\/strong\u003e — superior to paper phenolic (FR1\/FR2): stronger, moisture-resistant, better electrical insulation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1oz copper (35μm)\u003c\/strong\u003e — standard weight for most PCB designs; handles up to 1A per mm trace width\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7×10cm size\u003c\/strong\u003e — large enough for most prototype circuits; can be cut to smaller sizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBare copper surface\u003c\/strong\u003e — ready for toner transfer, photoresist, or direct CNC milling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo lead time\u003c\/strong\u003e — fabricate your PCB in hours, not days\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With \/ Common Use Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToner transfer etching\u003c\/strong\u003e: Print circuit on laser printer, iron onto copper, etch with FeCl3 solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV photoresist etching\u003c\/strong\u003e: Apply photoresist film, expose with UV through transparency, develop and etch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC PCB milling\u003c\/strong\u003e: Use 3018 Pro or Genmitsu CNC router with 0.1mm V-bit to mill traces directly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Arduino shield\u003c\/strong\u003e: Fabricate a custom shield PCB for specific sensor\/actuator combinations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRF circuit prototyping\u003c\/strong\u003e: Controlled-impedance microstrip lines for antenna and RF filter design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What etching chemical should I use for DIY PCB etching?\u003c\/strong\u003e\u003cbr\u003eA: Two common options: (1) Ferric chloride (FeCl3) — fast, effective, but stains everything brown and requires careful disposal. (2) Ammonium persulfate (Na2S2O8) — clear solution, easier to see progress, safer disposal. Both work well with toner transfer and photoresist methods. Use at 40–50°C for faster etching.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I cut this board to a smaller size?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Score with a utility knife along a straight edge and snap, or cut with a rotary tool (Dremel with fiberglass cutting disc). For clean straight cuts, use a PCB shear or guillotine cutter. Always wear a dust mask — FR4 fiberglass dust is a respiratory hazard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the minimum trace width I can achieve with toner transfer etching?\u003c\/strong\u003e\u003cbr\u003eA: With a good laser printer (600 DPI minimum, 1200 DPI preferred) and careful ironing technique, traces as narrow as 0.5mm (20 mil) are reliably achievable. Traces below 0.3mm require UV photoresist or CNC milling for consistent results.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× FR4 Single-Side Copper Clad PCB Laminate (7×10cm, 1oz copper, 1.5mm)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991462433003,"sku":"\u003cnone\u003e","price":4.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/fr4-7x10cm-single-side-copper-clad-pcb.webp?v=1761721271","url":"https:\/\/keszoox.com\/products\/fr4-single-side-copper-clad-pcb-laminate-7x10cm-1oz-1-5mm-diy-etching","provider":"Keszoox","version":"1.0","type":"link"}