How do you protect acrylic paintings?

Handle an oil painting by the frame, never touch the painting itself. Don't let anything press against the front or back of the canvas, this can create a dent or hole. Never try to repair damage yourself. An amateur repair job, given time, will show. For temporary storage or transporting, place cardboard or plywood on both front and back (slightly larger than the outside dimensions of the framed oil painting) and then wrap in 'bubble wrap' and tape or tie securely. Permanent storage should be in a custom-sized plywood crate with the painting braced to allow air flow on all sides without shifting. Never expose an oil painting to extremes of heat, cold, or humidity, whether hanging on your wall or in storage. Basements and attics are bad places to store paintings. Occasional dusting with a clean, soft-bristled brush is recommended. A very old or dirty oil painting should be taken to a professional restorer.