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Old 7th February 2013, 06:14 PM   #1
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Default PCB etching tank heating

Any suggestions on a fully submersible heating apparatus I can use in a pcb etching tank that will go up to 50C?

I have been using aquarium heaters and they "work" but they only go up to 35C, which leads to long etching times.
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Old 7th February 2013, 06:50 PM   #2
HighTec is offline HighTec  Croatia
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Originally Posted by Fusion916 View Post
Any suggestions on a fully submersible heating apparatus I can use in a pcb etching tank that will go up to 50C?

I have been using aquarium heaters and they "work" but they only go up to 35C, which leads to long etching times.
Here, I bought couple of these heaters especially designed for bubble etching tanks. They can reach 55-60șC -> 1x Kinsten Etching Plating Heater Eph 20 300W 110V Taiwan | eBay
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Old 7th February 2013, 07:05 PM   #3
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Removing the built-in thermostat of an aquarium heater
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Old 7th February 2013, 07:11 PM   #4
HighTec is offline HighTec  Croatia
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Yes, that will do if you're lucky enough. Pulling the rubber seal without breaking the glass is pain in da butt. Been there, done that.

Last edited by HighTec; 7th February 2013 at 07:17 PM.
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Old 7th February 2013, 09:26 PM   #5
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Here, I bought couple of these heaters especially designed for bubble etching tanks. They can reach 55-60șC -> 1x Kinsten Etching Plating Heater Eph 20 300W 110V Taiwan | eBay
Wow nice exactly what I was looking for, thanks.

Do you know of any good PCB holders and water tank agitators?
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Old 7th February 2013, 10:13 PM   #6
HighTec is offline HighTec  Croatia
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Well you can use plastic clips, a common aquarium air pump and an aquarium bubble wand. No special recommendation since there are bunch of quality pumps out there. I made my own PCB processing tanks with acrylic glass. There are 3 processing tanks, etching compartment, washing compartment and developing/stripping compartment. The heaters are controlled with the microprocessor temperature controller. I stole the idea from Mega Electronics UK, PA310 Tri-Tank Unit -> Mega-UK - PCB Processing Tanks Will soon post some of my pics soon.
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