PCB Copper Clad Board Etch Solution 200g BX2, R37

DescriptionThere is a massive sense of accomplishment when you finally move a circuit from a temporary, tangled breadboard to a permanent, custom-designed Printed Circuit Board (PCB). To make that leap, you need a reliable way to remove the excess copper from your blank boards, leaving only your designed electrical traces behind. This 200g bag of PCB Etching Powder is exactly what you need for the job.Whether you are an engineering student finalizing a hardware prototype, or an instructor teaching students how to manufacture their own Arduino shields in a summer bootcamp, this etching powder provides clean, crisp, and reliable results.The Transparent AdvantageHistorically, many hobbyists used Ferric Chloride for etching. While effective, it is a dark, opaque brown liquid that stains clothes, sinks, and skin permanently. This product is a white crystalline powder (typically Sodium or Ammonium Persulfate). When mixed with warm water, it creates a clear, slightly bluish etching solution. This transparency is a massive advantage: you can actually watch the copper dissolving. You will know exactly when the board is finished, completely eliminating the risk of leaving the board in too long and accidentally eating away your delicate traces.Easy and Safe StorageBecause it is shipped as a dry powder, it is incredibly safe to store and transport. You only mix the exact amount of liquid solution you need for your current batch of PCBs, keeping the rest of the powder safely sealed in the bag for your next project.Preparation & Usage Instructions:Mix: Dissolve the powder in warm water (approximately 40°C to 50°C). Warm water significantly speeds up the chemical reaction. (A common ratio is roughly 200g of powder to 1 Liter of water, but you can mix smaller batches).Submerge: Place your masked copper-clad board into the solution.Agitate: Gently rock the container back and forth. The movement helps wash away the dissolved copper and introduces fresh etchant to the surface.Clean: Once the unwanted copper is gone, remove the board with plastic tweezers and rinse it thoroughly under cold tap water to neutralize the chemical.Key Features:Dry Powder Format: Long shelf life and much safer to store than pre-mixed corrosive liquids.Clear Solution: Makes visual inspection of your PCB traces incredibly easy during the etching process.Clean Etching: Produces sharp, professional trace lines without undercutting the toner/ink mask.Technical Specifications:State: Dry Crystalline PowderColor: WhiteNet Weight: 200 GramsTarget Material: Copper (Standard FR4 Copper-Clad Boards)Ideal Applications:DIY home PCB fabrication using the toner-transfer methodUniversity electronics and mechatronics hardware labsSmall-batch prototyping for custom IoT devicesEducational electronics training and soldering bootcampsSafety Warning: Always wear safety goggles and nitrile gloves when handling etching chemicals. Never use metal containers or metal tools with this solution; always use plastic or glass trays and plastic tweezers. Use in a well-ventilated area, and never dispose of used, copper-saturated etching solution down the sink drain, as it is toxic to aquatic life.