Using an IKEA Mirror (Or other store bought mirror)
Is it practical to remove the paint from the paint back of an IKEA mirror rather than purchasing special glass? What would I use to remove the paint?
Unfortunately, that is not going to work for you unless you then apply “2-way” mirror film or reflective coating. The operative word is “2-way”. Standard mirrors won’t work. Frankly, you’d have one hell of a time and still not be satisfied. If cost is an issue then please consider “2-way” acrylic mirror which is far less expensive than 2-way glass. Of course, glass is the best result but acrylic can be acceptable. You get what you pay for.
Do a search right here on the forum for “which mirror to use” and you’ll find plenty of discussions about it.