Is acetate suitable for outdoor use? No. We do not recommend using acetate outside, especially for extended durations, be-cause, over time, acetate film tends to swell and shrink with changes in atmospheric humidity. Also, long term exposure to sunlight will eventually cause it to yellow and become brittle. For very short term use (a few days), it should be al-right, but beyond that, we can’t recommend its use outdoors. The best products that we stock for outdoor use are HDPE and polypropylene.