Non-Chemical Solder mask the age old question

[Goldenmiser]

Hi everyone, this is my first post so I thought I would make it useful before slamming everyone with questions. I came across this video when I was looking for a way to remove the solder mask from laptop touch pads. I haven't tried it yet myself but it looks like it works pretty well.

Mix water + Sodium Hydroxide in a 4:1 ratio in a container that can be heated, use something tall to contain any splatter. Add your pieces ensuring they're fully submerged. Begin heating on medium until bubbles begin to form. Once the bubbles start to form, turn off the heat source and let it soak for about 8-10 minutes You can check to see if the mask it loose with a SS knife. If the mask is loose, remove from the solution and rinse under running water.

Credit where credit's due: goldrecovery.us > Harvesting Video's

As usual use proper safety gear!

 

[Oz]

Goldenmiser,

I think it is fantastic that you wanted to share something as a first post before asking questions. It is through no fault of your own however that goldrecovery.us happens to be our very own lazersteve that is one of the moderators here. It speaks well of you to give the credit of where you have found something of value.

Welcome to the forum!