How to Clean PCB with Isopropyl Alcohol — Why Results Vary? скачать в хорошем качестве

How to Clean PCB with Isopropyl Alcohol — Why Results Vary?

How to clean PCB with isopropyl alcohol IPA after soldering? Why cleaning results vary? It depends on the soldering flux grade, its chemical composition, the flux in the solder core, and the amount of residue remaining under the SMD electronic components. Some people get a perfectly clean Printed Circuit Board. Others get corrosion, white and grey residue, or conductive current leakage days or weeks later. In this video, I explain why cleaning electronic PCBs with alcohol IPA sometimes works and sometimes damage your PCB. The problem is not the alcohol itself — it’s the interaction between isopropyl IPA and different classes of soldering fluxes such as cheap flux, water-soluble flux, mixed flux from core solder wire and high-quality no-clean ROL0 flux. This video is useful for everybody repairing electronics, soldering new PCBs with new SMD components, assembling PCB prototypes, or for PCB Assembly manufacturing. Understanding flux classification and proper PCB cleaning methods helps avoid damage, corrosion, white spots, grey residues and long-term reliability problems. 🎯Video Soldering Flux Classification —    • Soldering flux classification - How to cho...   Topics Covered: Why people get different results cleaning PCBs with IPA Flux residue under SMD components and why it matters Cheap flux + alcohol → corrosion and conductive contamination Water-soluble flux and why alcohol creates gray/white residue Mixed flux from solder wire and unexpected failures When no-clean ROL0 flux is safe for IPA cleaning Why professional electronics cleaning gives different results When IPA is useful — and when it accelerates damage Links: Instagram —   / diamond.flux.soldering   Telegram — https://t.me/DmitryKh2 Patreon —   / electronicspcb   Diamond Flux — https://express-24.io/ PCB Assembly Services — https://express-24.io/PCB-assembly-ma... Electronics PCB Assembly Consulting — https://express-24.io/consulting.html Timeline 00:00 The two opposite opinions about cleaning PCBs with Isopropyl Alcohol 00:38 What’s the problem with using alcohol to clean printed circuit boards? 01:17 Rule 1: Soldering Flux always remains under SMD components 01:40 Cheap soldering flux and isopropyl alcohol reaction 02:46 Water-soluble soldering flux and and isopropyl IPA alcohol reaction 03:13 Organic Soldering Flux Classes - Water Soluble 03:54 Flux manufacturers don’t indicate the soldering flux class 04:19 Unknown Flux inside core solder wire + External Quality soldering Flux 05:03 When IPA is safe: ROL0 and REL0 no-clean Soldering Flux everywhere 05:20 Rule 2: The process of cleaning PCBs is related to the soldering flux class 05:37 Rule 3: Isopropyl Alcohol only removes organic contaminants and residues 05:51 How to fully clean Organic and Chemical residues after soldering PCB 06:06 Rosin No-Clean Soldering Fluxes ROL0 and REL0 06:31 How PCB manufacturing cleaning with Isopropyl Alcohol IPA 06:47 Manufacturers face problems with soldering and cleaning PCBs 07:03 The argument between supporters and opponents 07:28 Conclusion Hashtags: #pcbcleaning #howtocleanPCB #electronics #ipa #isopropyl