How many hours (years?) will these bags last when exposed to direct sunlight???
917825
I think it might depend on, not only how long they are exposed to sunlight, but also other environmental factors (humidity and bioregion). The manufacturer claims that UV protection is included in the manufacture of the product, but research that I did suggests that they will still begin to deteriorate in a matter of months. Ours were out in the open for most of an Oregon summer filled with moist dirt, and seem to be ok so far.
917826
Did I not review these bags? I meant to. They suck. I filled two and set them out. Three short days later I filled a few more and went to reposition the first two. They shredded upon contact! It only took a couple more days for the second three to fall apart when I touched them. I set the rest of them in an old chicken coop, exposed to partial sunlight, where they are slowly rotting. Buy some other bags.
917827
i woud say 6 mounths for perment ? if you have few fill 1/2 sand 1/2 concreat if you have a lot like me (130) you got to bery them they are difernt bags with uv bkock too good luck beppo
702200
Hi, It really depends on how to use these bags. They have have about the same durability, however, if you don't have enough stuff or have too much stuff in the bag may damage the bag during vacuum the air out of the bag. Thank you, -epetbed
793046
I'm not sure, but it's at least three months. That's how long each bag lasts for me, and it keeps that long.
1695437
The bag(s) we got had almost a year and a half shelf life..but..kept cool..they will last much longer. We have bought these in 6 pound bags SEVERAL times.
1057598
They should not deteriorate if they are kept dry, however avoid moist and dusty environments while storing. Usually I get about 40 work hours in a medium dusty and noxious environment.Hope this helps!
407672
These are "rechargeable". Simple Human recommends that you put them in direct sunlight for 3 hours, once every 4-6 weeks to recharge them. By doing this they will last longer, and you can probably get up to one year out of this two pack.
759258
I understand from others they do last for years...but once used...need to be replaced. I don't know why Kidde didn't answer this question....I just hope they improve their packaging...
1162767
I think you could leave these out for months in sunlight. All plastics degrade due to sunlight, temperature, etc. Google: high density structural foam degradation
107166
My bag says to store in a cool dry place, and that they keep "best" in fridge or freezer. If you are thinking 25 years, then they would probably need to be frozen. The expiration date on my bag was stickered over, so I can't tell what it is. Maybe the manufacturer would have more precise info on shelf life.
652757
Most myler bag will protect seeds and survival type food 3-5 years that can be extended additional 1-2 years if kept in cool dark place or deepfreezer
691374
It says if stored in the freezer in a mason jar that they can last up to 15 - 20 years. I also, wanted to add I have started all of my plants under the lights already and I am having great success!!
418575
I would say yes, but if they are in direct sun they may get brittle and discolor over time.
593200
Highly doubtful. You probably need direct sunlight at least 4-6 hours per day.
309508
Depends on the sunlight during the day. Sunny days they stay on about 8 hours, cloudy days can be much less. Also make sure the solar chips on the tops of the lights isn't covered or shaded by folage.
635531
I am not sure if it will break down like a regular trash bag but I do know that if it is exposed to sunlight and weather that it will break down after a year or two. We used it for a greenhouse and it started to shred from the sun and wind, after the first year. If you are going to cover it with dirt so that the sun can't get to it, it should last indefinitely. We also used this plastic to cover a root cellar, putting dirt on top of it and it is still going strong.
1089810
I have a friend who lives in very sunny Crestone, CO, and his are holding up fine. He's had them a couple of years. I think they are under a clear plastic roof though, so not direct sunlight. Ours are inside, not out.
2116249
Bag will work as long as its transparent. It's the sunlight that purifies the water, not the bag. I'd try to rinse the bag with clean water from time to time, but otherwise, it's good as long as it holds water and the sun keeps shining!