Storing M21 sealant in clear container

[scuff]

Unless a product is UV reactive, don't worry about a little light reaching it. In the context of an automotive product, I'd be surprised if it was UV reactive in the first place, and even more surprised if the manufacturer didn't make note of the UV reactivity in the ad copy or the product label.

Lots of good advice above. FWIW, I've had some Menzerna products stored in their original containers for years. They were shipped with a strip of white tape (looks like electrical tape) around the caps to keep them from loosening in shipping, and to help seal the bottles. If you plan to store the product for a long time, I'd do that, as well as Harpolith's plastic bag trick. I'm adding a three pack of those AG bottles to my cart that VISITOR mentioned, too.

[Sonic Mustang]

I have a half full 64 oz. factory bottle of M21 Ver 1.0 (I think that makes it nine or ten years old.) that's perfectly fine and I have some that's been in a 16 oz. translucent plastic bottle with a flip top applicator for over a year. the product's fine, but the bottle deformed after a month or two. It kind of shrank in on itself. You can duplicate this effect by uncapping the bottle and squeezing then recapping it tightly. This only happens with the aftermarket squeeze bottles.

[Setec Astronomy]

I have a half full 64 oz. factory bottle of M21 Ver 1.0 (I think that makes it nine or ten years old.) that's perfectly fine and I have some that's been in a 16 oz. translucent plastic bottle with a flip top applicator for over a year. the product's fine, but the bottle deformed after a month or two. It kind of shrank in on itself. You can duplicate this effect by uncapping the bottle and squeezing then recapping it tightly. This only happens with the aftermarket squeeze bottles.

Wow, good for you. I had a sample size of V.1 in one of those Meg's ketchup bottles, and over time the water just separated out of it, no matter how much I shook it. Perhaps mechanical stirring would have worked, but over time it really devolved into a paste that you couldn't get out of the bottle. Which is kind of the opposite of a lot of other Meg's products that tend to thin out. The "paste" M21 still worked well, but was kind of a nuisance to use.

[Sonic Mustang]

I'm curious about what causes the translucent squeeze bottles to deform.

[scuff]

I'm curious about what causes the translucent squeeze bottles to deform.

It might be due to temperature change. The valves may allow air to escape easier than enter, leading to blowing off pressure when hot, but sucking down when cooler.

[FUNX650]

I'm curious about what causes the translucent squeeze bottles to deform.

•One cause of plastic bottles
incurring "paneling" is:
-When the air pressure inside a plastic bottle
becomes less than the air pressure directly
outside of the plastic bottle.

•For more causes/information...
-Google: Plastic Bottle Paneling:

https://www.google.com/?gws_rd=ssl


Bob

[scuff]

Well, I got the first one.

Plastic Bottle Paneling: 5 Causes and The Cures