Caig Labs CL-ETCH-16 Ferric Chloride PCB Etchant Solution 16oz Bottle

This etches metal great, but not a good refill for the etch-a-sketch.

works very good for etching knives. that's what i use it for.

Used it to etch a meteorite. Worked very well, seems very strong. Baking soda took a while to neutralize the left over waste. Also came very well packaged and sealed in a separate bag.

This product worked perfectly for etching my printed circuit boards.

Good

It etches damascus steel easily.

Used for a project to etch brass. Worked quite well. Several online videos on how to use it. Make sure to wear gloves. Can be reused but it does lose effectiveness the more you use it. Took about 30-40 minutes to etch the depth that I wanted.

Used to change the color / age a mandolin tailpiece. Worked great, easy to use. Stains things easy, so gotta be careful when working with it.

This is a great product for etching your own printed circuit boards. I've used this product before but from a different supplier & they no longer carry this size so I was pleased to find it here. It was well packaged for shipping & inside, the bottle had a sealed plastic bag for any leak protection.