Unopened Coating shelf life

acuRAS82

acuRAS82

New member
Is there a “standard” or even an observed (by you members) shelf life for 30ml / 50ml coating bottles that are stored in ideal conditions (out of sunlight, 65-75degF temperatures)? I rarely see any info from manufacturers on this topic other than maybe Gyeon.

I think CQ UK can go 2 years... is that a normal range for coatings? I know there are probably answers all over the place and I won’t hold anyone liable. Just curious for my own purchasing ideas in this global climate of quarantining where I’m not sure how long it often I will see friends’ or families’ vehicles.
 
To piggyback on Acura`s question: Have we decided if there is any benefit to refrigerate the product, whether opened or un-opened?

Thanks.
 
My last vial of OptiCoat went bad within two years despite being unopened and in climate-controlled (but not refrigerated) storage.

Gee, this thread reminds me that I have some 22ple stuff here that might be almost that old! No idea whether it`s still good...
 
That is going to vary quite a bit. Here is something to consider. I had an unopened bottle of CSL develop crystals in it and become cloudy as it only has a 1 year shelf life when it is unopened.
 
The Guz said:
That is going to vary quite a bit. Here is something to consider. I had an unopened bottle of CSL develop crystals in it and become cloudy as it only has a 1 year shelf life when it is unopened.
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Interesting, thanks Guz. I assume Gtechnic listed the 1 year shelf life somewhere obvious, or did you have to go digging for that info?

I’m sure different formulas are more prone to it and I assume that during initial bottling, some companies may get the top sealed on faster than others.

Examples like yours is exactly what I was looking for since it’s hard to make any across the board claims. All I know is that the UK bottle you so graciously provided me with was 2 years old and worked fine. Good to know about CSL.

I’m curious about any hood or bad experiences with older 22ple HPC, as well as any and all others.
 
I have always kept my unopened and opened coating in my freezer to try to slow any chemical reactions. I’m don’t have any evidence it does work. The light coating I haven’t put them in just the 30 ml/50ml bottles
 
I keep them on my bookshelf not exposed to sun. No issues doing that. Clean the cap and top of the bottle after use and tighten them up.

22ple is smart as they include a plug in their bottles.
 
Used to be fridge but after I bought a bottle of opti clear coat restorer and they recommend putting in freezer I started putting all glass bottle or aluminum in freezer.
 
William_Wallace said:
Used to be fridge but after I bought a bottle of opti clear coat restorer and they recommend putting in freezer I started putting all glass bottle or aluminum in freezer.
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I assume the coating freezes then, or is it high enough solvent/alcohol percentage that it does not?
 
I think it`s more wiser to call the manuf. and see what they say. Sure there are grey area answers when it comes to chems, but freezing product .......and then using a frozen/defrozen product, honestly, I would have some serious hesitation to do . If I was freezing apc or something more superficial to be used as a spray/wipe and rinse, sure. But freezing coating and then using it down the road ? I Dunno....I`d rather break out a benji than use frozen/thawed coating on paint. Maybe less hesitation on wheels.
 
I always have had great results with the Optimum big syringes.. Being a syringe, it allows you to purge all the air out of it when you press the plunger. And all their syringes I have ever used stayed air tight.
Then I just put the plug on the end of the syringe, put it in the envelope it came in, in one of my garage cabinets. Went years before they ever started to harden a little.
Dan F
 
mobiledynamics said:
I think it`s more wiser to call the manuf. and see what they say. Sure there are grey area answers when it comes to chems, but freezing product .......and then using a frozen/defrozen product, honestly, I would have some serious hesitation to do . If I was freezing apc or something more superficial to be used as a spray/wipe and rinse, sure. But freezing coating and then using it down the road ? I Dunno....I`d rather break out a benji than use frozen/thawed coating on paint. Maybe less hesitation on wheels.
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Yeah, I’m not sure how I feel about freezing, since it’s generally the ultimate no-no for non-coating LSPs and what got me to originally keep my products inside the house. But’s it’s quite interesting to hear these experiences from others. I appreciate them.
 
acuRAS82 said:
I assume the coating freezes then, or is it high enough solvent/alcohol percentage that it does not?
Click to expand...

I haven’t seen any freeze I had a bottle of csl get cloudy. You got me thinking I went and checked on my stash they are all normal looking and moved into fridge the opti clear coat restorer I left I had bought that a while back to do couple sets of wheels right when it came out and it’s been in there ever since. I think it has real short shelf life and is probably bad by now.
 
I keep mine in the garage. Nothing special.

I had two OPENED (but closed) left-over coatings that a friend had sent me. One was 2 -part IGl, and the other was Cquartz Ti (the older version from years ago). They must have sat at least 6 months after I received them. Used them as samples to test out on my daily driver. One of them had formed crystal like stuff around the bottle top opening. Carefully removed those. Inside was still liquid enough for me to try. Over a year later on the car, they`re still going. Probably not at their peak performance, either now or when first applied, but still, pretty good.

Might be one of those YMMV deals.
 
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