New Simple Method for Corrosion PCB

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Intro: New Simple Method for Corrosion PCB

By Ferric chloride hexahydrate can be very simple implementation of the diy pcb corrosion.

Features:
1. change all the shortcomings of ferric chloride, the corrosion rate is very fast.
2. It is blue and clear etching solution, no more dirty phenomenon.
3. etching process is clearly visible.
4. by 1:7 exchange water, can corrode 10 * 15cm single-sided PCB, about 10-15 pcs.

Step 1:

by 1:7 'Blue etchant' into the water.

Step 2: Process of Corrosion Pcb Board

process of corrosion pcb board

Wait. .

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    22 Discussions

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    gcollins6

    5 years ago on Introduction

    By the way, the etching agent is not blue: that colour comes from the Copper Sulphate that the reaction with copper produces.

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    lemoniekingcm

    Reply 7 years ago on Introduction


    Thanks, how does it change all the shortcomings of ferric chloride?
    Ferrous would be blue, ferric is yellow/brown/orange - yes?

    L

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    azigtalemonie

    Reply 6 years ago on Introduction

    The chemical name is Sodium Metasilicate, Anhydrous

    THIS IS CONFIRMED BY THE COMPANY (KINSTEN) http://kinsten.com.au/chem/

    The company is from australia, and the product name is DP-50

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    lemonieazigta

    Reply 6 years ago on Introduction

    And Kinsten have confirmed that this is blue?
    There's no species in there that will produce a blue colour.

    L

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    kingcmazigta

    Reply 5 years ago on Introduction

    Hello,everyone. thanks for your interest.
    The correct name is sodium Metasilicate or ammonium persulphate

    http://www.kinsten.com.tw/KIN3.ASP?ITEM=H221 (australia)
    http://kinsten.com.au/chem/ (taiwan)
    http://www.digpcb.com (china)

    Above address can confirm.

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    westfwkingcm

    Reply 7 years ago on Introduction

    > It is Ferric chloride hexahydrate.
    Can't be. No such thing in that color (nearly clear.) Probably sodium or ammonium persuphate.

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    kingcmwestfw

    Reply 7 years ago on Introduction

    Sorry, I may not know the correct English name of the item.
    But in the Chinese market, most technology students use it for class experiments.

    ---
    I will verify that the correct name. And then released.

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    gcollins6

    5 years ago on Introduction


    Hi, I sent an email to the company Kinsten (www.kinsten.com.au) and got the reply that I pasted and put below in quotes. This answers many questions and corrects some of the statements.

    "EB-750 (called Blue Etchant in some Asian countries) is Peroxydisulfuric acid, disodium salt. To the commentors that said it was low at room room temperature, nether EB-750 or Ammonium Persulphate will work effectively at room temperature, and needs to be heated to about 55 deg C to be effective.

    DP-50 is the developer, and it is Sodium Metasilicate."
    DP-50 removes the exposed photosensitive film from the board, it does not etch copper.

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    Emiliano Valencia

    6 years ago on Step 2

    Hi, I have one question, what is the diference betwen Ferric chloride Hexahydrate and the normal Ferric Chloride (FeCl3) because what I have is a dark brown, almost black liquid and hell it is slow!

    can the hexahydrate version be made from this or what is it?

    thanks,
    emihackr97.

    BTW 5 stars!

    1 reply
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    sunny_smatEmiliano Valencia

    Reply 5 years ago on Step 2

    Hi. Make sure your FeCl3 is fresh and no yellow lumps are present. And it does not matter what type of FeCl3 (anhydrous or hydrated) you use. To make the etching process faster, use hot water. It works like a charm.

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    gaudat

    6 years ago on Introduction

    Found exactly this in a local electronics store here in Hong Kong.

    It's ammonium persulphate, priced at HK$20 (about 3 usd) per pack.

    Slower than ferric chloride, and have quite serious side-etching.
    I think it is not so appropriate if you want to have SMD components on your board :)

    1 reply
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    sorin0306gaudat

    Reply 6 years ago on Introduction

    I tried ammonium persulphate, and don't work for me(I tried in room temperature)

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    azigta

    6 years ago on Introduction

    The chemical name is Sodium Metasilicate, Anhydrous

    THIS IS CONFIRMED BY THE COMPANY (KINSTEN)

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    altomtom

    7 years ago on Introduction

    Kinsten Presensitized PCB Board environmentally friendly Blue etchant 190g/bag

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    altomtom

    7 years ago on Introduction

    http://www.satistronics.com/Wholesale-pcb-pcba-services-pcb-diy-materials_c1215

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    kingcm

    7 years ago on Introduction

    i'm sorry!
    I tried to contact the factory. They can not provide a true chemical name.
    At present, China and Taiwan are described as "Blue etching agent" or "藍色環保蝕刻劑"

    1 reply
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    Udonkingcm

    Reply 7 years ago on Introduction

    Hey Kingcam - ni jiang zhongwen ma?
    Zhege dongxi yong zhongwen zenme shuo?
    Ni gei wo pinyin jiu haole.

    Wo youshihou wei wo xuexiao la yixie huo dao nanfei. Tamen zai fazhan zijide etching lab.