Condition:New
Type:Logic ICs
Covered copper plate ipc-hdbk-830 copper plate pcb circuit board fecl3 blue eco-friendly etching agent 180g
Usage method:
1. Take a suitable amount of the ready-made solution each time. If the used solution is to be kept for the next time, please store it in an open container. Do not screw the cap of the bottle, so as not to cause the container to burst due to inflation.
2. It can be used at room temperature. Because of the rapid reaction, a red oxide layer will be formed on the surface of copper. So it is necessary to shake the container continuously and etch it in 5-10 minutes. If the temperature is increased (not more than 50 degrees), the etching speed is fast.
3. The solution is transparent and clear liquid. With the corrosion of copper, the color will become blue. The whole etching process is clear and visible, and the high precision can be easily achieved.
4. The etchant itself is non-toxic, but because the waste liquid will contain copper ions, it will pollute the environment. As far as possible, it should not be directly discharged into the sewer. It can be treated with alkaline substances such as alkali or lime as solid waste disposal, or it can be stored in an uncovered plastic bucket for waste liquid disposal after natural air-drying.
Storage: must be sealed and moistureproof before it is added to water.
Product description:1:4 with water, one package can etch more than 10 single panels of 10*15cm.?1. Advantages: (compared with ferric chloride)?A. The solution is colorless and clear, and no longer has a dirty image;B. The entire etching process is clearly visible, and the highest precision can be easily achieved;C. No sludge, no stains, no stains on the clothes floor;D. Weakly acidic, almost odorless, does not corrode the floor, and greatly enhances safety.2. Instructions for use:?A. Preparation of etching solution (plastic tray for cleaning)?1. Dissolve the engraving agent in water according to 1:4, that is, a package of 200 grams of etchant is mixed with 800 ml of water. To ensure the use effect, the temperature during etching is preferably above 50°C. Therefore, the water can be heated to about 70°C before adding the etchant;2. Shake the container gently or stir with a plastic rod to fully dissolve the etchant.B, etching?1. Immerse the circuit board to be etched in the etching solution (single-sided board is facing upwards, double-sided board should be placed in the air, do not touch the bottom of the board)2. Gently shake the container or brush the board surface with a soft brush to ensure that the solution flows on the surface of the circuit board. It can be seen that the exposed copper layer on the board surface gradually dissolves and the basic bottom of the board is exposed;3. When the exposed copper layer disappears completely and the board base is translucent, the etching is completed, which usually takes 5-15 minutes. During the etching process, the color of the solution changed from colorless to light blue, and some blue-white crystals were precipitated;4. Take out the board and rinse it with clean water, visually check that there is no incomplete part of the etching, and then air dry for the next step;5. After the etching is completed, the remaining solution can be used for secondary use after filtering out the crystalline precipitate, until the etching speed becomes slow and discarded.3. Matters needing attention:?1. The etchant (liquid) is weakly acidic and non-toxic. Be sure to wash your hands after use. If it gets into your eyes, please rinse with water quickly;2. Please store in a cool and dry place away from children;3. The etching solution should be used as soon as possible. Do not put the prepared etching solution in a closed container, because the solution will slowly decompose and release oxygen, which will cause the pressure in the container to rise;4. The etching agent itself is non-toxic and harmless, but because the etching waste liquid contains copper ions (heavy metals), please use soda ash or lime and other alkaline substances before disposal before proper disposal.When corroding the copper clad laminate, remember to shake the corroded board (clamp one side of the copper clad laminate with a pair of chopsticks, let the copper clad laminate one side up and then sink, repeat this action) let the corrosive agent wash the copper clad laminate or use a brush to corrode Liquid brushing the copper clad laminate, if the copper clad laminate is directly thrown into the corrosive solution, a layer of substance will be formed on the surface of the copper clad laminate, which will not corrode at all. (I read the comments of several sellers because the copper clad laminate is directly thrown into the corrosive liquid and it is said that our product is not good). In addition, the corrosive agent is mixed with hot water, the temperature of the hot water is about 80 degrees, the corrosion effect will be accelerated! If the friend who uses cold water directly throws the corrosive liquid into the board without moving the board, it is normal that there is no response. If you use hot water, there is no response for more than 10 minutes, please stick to it, as long as the color of the corrosive liquid turns blue, it means The copper foil is corroded because the copper foil of the copper clad laminate has a certain thickness. Although the copper foil is corroded, it is invisible to the naked eye. Some friends made it for more than 10 minutes and they suspected that the copper foil was still a fake. Our corrosive was useless. In fact, the copper foil was already corroded at that time. It was just because of the thickness of the copper foil that it could not be seen by the naked eye. As long as you insist, you can see that the corners are corroded clean, and it will be very fast to see that the corners are corroded clean, and it will only take about 5 minutes to completely corrode. All in all, please trust us, there is no problem with corrosives!?
