Never hang your canvas painting outside, in areas of high humidity, or near any heat source.
Please make sure that you clean your hands before handling any canvas painting.
Do not place anything on top of the canvas or lay your canvas with the front-facing down.
How to tighten a loose and saggy canvas painting:
If over the years you notice that your canvas is starting to loosen up and sag, you can try the following:
Spray an even, a fine mist of clean water or distilled water on the back of the canvas. The canvas should tighten up when it dries.
Never use any chemical cleaners to clean your canvas painting.