Acrylic mirrors are a fast and inexpensive way to decorate a room. Acrylic material doesn’t shatter and weighs much less than glass, but acrylic material warps easily when exposed to heat. If your acrylic mirror warps don't throw it out, flatten it out and hang it back up.
Things You'll Need
- Two pieces of smooth glass
- Protected surface
- Safety gloves (wear gloves when handling the mirror and glass to protect your hands)
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Remove the backing. If the mirror is in a frame, wearing the safety gloves, gently pull out the mirror from the back with your hands.
Find two pieces of smooth glass that are longer and wider than the mirror.
Place one piece of glass on a protected surface in direct sunlight. Position the warped mirror, reflective side down, on the center of the glass.
Lay the second piece of glass on top of the mirror. Line up the edges with the bottom piece.
Allow the sun to heat the glass. When the mirror softens and is flat, move the glass sheets and mirror onto a protected surface in the shade until the acrylic material cools and hardens.
Remove the mirror from between the glass sheets. Replace it in the frame and reinstall the backing.