IPA and Plastic

[Two3zz]

Is diluted IPA OK in PVC type plastic spray bottle for the long term? Or should I really use HDPE such as it originally came in?

 

[PiPUK]

IPA is not all that aggressive really, I doubt you will have any issues. It is not like panel wipe which will destroy many HDPE bottles or like alkaline products which will damage PET. Don't fear IPA, there are much nastier things in most detailing armouries!

 

[281]

you're fine with those...

 

[FUNX650]

Is diluted IPA OK in PVC type plastic spray bottle for the long term? Or should I really use HDPE such as it originally came in?

-Unless the original container was 100% IPA...
it's already been diluted with, at least, some water.

-IPA is not going to decompose on you, so the only worry (if any) is the permeability of the plastic containers.
Over a long time, you may lose some small amount leaking through the plastic, or possibly dissolving a little of the plastic into solution.
(I seriously doubt there would be anything of concern in the next twenty to thirty years.)

-Shoot...
I have a gallon of 91%, that I've had for years.
Still smites an open cut...


Bob

 

[PiPUK]

-IPA is not going to decompose on you, so the only worry (if any) is the permeability of the plastic containers.
Over a long time, you may lose some small amount leaking through the plastic, or possibly dissolving a little of the plastic into solution.


Bob

What you are referring to is what we would call 'panelling' - a solvent permeates through the plastic and causes deformation, as partial result. In actual practice, this won't happen with IPA. It is a concern with hydrocarbon solvents which will often do damage to HDPE (though it can be treated to give a barrier to the solvent).

How did IPA get such a reputation for being nasty? From my point of view, it is one of the least nasty solvents about in car care!

 

[Andr3wilson]

What you are referring to is what we would call 'panelling' - a solvent permeates through the plastic and causes deformation, as partial result. In actual practice, this won't happen with IPA. It is a concern with hydrocarbon solvents which will often do damage to HDPE (though it can be treated to give a barrier to the solvent).

How did IPA get such a reputation for being nasty? From my point of view, it is one of the least nasty solvents about in car care!

Agreed!

 

[Two3zz]

Thanks guy's for the feedback! Thought I'd better ask. Had reservations about the
secondary bottle I was putting it in.

 

[FUNX650]

Thanks guy's for the feedback! Thought I'd better ask. Had reservations about the
secondary bottle I was putting it in.

If you would put it in a secondary glass-container;
And store it in a dark, cool place when not in use:
It may last for a century or more!!

I'm leaving mine as part of my Last Will and Testament.

Bob

 

[damaged442]

What you are referring to is what we would call 'panelling' - a solvent permeates through the plastic and causes deformation, as partial result. In actual practice, this won't happen with IPA. It is a concern with hydrocarbon solvents which will often do damage to HDPE (though it can be treated to give a barrier to the solvent).

How did IPA get such a reputation for being nasty? From my point of view, it is one of the least nasty solvents about in car care!

I have no idea how it gets a reputation like this. I have spilled gallons of concentrated IPA on just about every surface you can think of without any negative effects, except removing any labels I made with a Sharpie marker on my glassware. IPA will have no effect on the PVC spray bottle and you will be fine. If it is concentrated or diluted with water, you will still be fine. Good luck and keep detailing! :xyxthumbs: