Yes, I think you may be right.  Here is the MSDS on Peel and Stick.
It seems pretty benign by their measures.
https://polyguardproducts.com/MSDS/Peel%20&%20Stick.pdf

On Mon, Apr 4, 2022 at 5:10 PM OlRivrRat <OlRivrRat@comcast.net> wrote:
>
>         & even if it does OutGas,, 1 side is sealed by the Tin it is stuck to &
>
> the other side is Aluminum so that only leaves the perimeter edge which
>
> is slightly less than 1/20in thick that would be able to OG ~ Doubtful that
>
> I’m going to be worring about it much @all ~
>
>
>
> > On 4 Apr , 2022, at 5:34 PM, Dan N <dn92610@GMAIL.COM> wrote:
> >
> > Yes... I use it and don't smell anything... and in our van there is a lot
> > of plastic that smells... :-)
> >
> > On Mon, Apr 4, 2022 at 4:00 PM Jim. Felder <jim.felder@gmail.com> wrote:
> >
> >> I doubt this is an issue worth worrying about. There is SO much more mass
> >> of plastics, rubber and other petroleum products in most cars that the
> >> threat of toxic fumes is overwhelming compared to a roll or two of Seal &
> >> Peel. Neither I nor any passenger has ever mentioned an odor from that
> >> product. Probably better for you than spending the night in a home with
> >> "modern" fabrics and wood products. Anyway, whatever outgassing might occur
> >> has likely occurred many years ago.
> >>
> >> Jim
> >>
> >> On Mon, Apr 4, 2022 at 11:02 AM Adam Grove <roverini@gmail.com> wrote:
> >>
> >>> A concern I have about using products for homes is that these are not
> >>> designed to be used inside due to off gassing of chemicals.  I think
> >>> it would be best to stick to automotive products which (ostensibly)
> >>> don't have these downsides.  I have successfully used a number of
> >>> different products over the years.  Mass matters if you want to stop
> >>> noise.  Bulk and space matters if you want temperature insulation.  I
> >>> usually use both.  An adhesive mass loaded vinyl product followed by
> >>> Havelock Wool insulation (non-toxic, resistant to mold etc)  The Wool
> >>> should only be used in dry cavities - not in the font doors for
> >>> example.
> >>>
> >>> Adam
> >>>
> >>> On Mon, Apr 4, 2022 at 1:35 AM Dan N <dn92610@gmail.com> wrote:
> >>>>
> >>>> hi Jeff,
> >>>>
> >>>> This is Peel & Seal from Lowes
> >>>>
> >>>
> >> https://www.lowes.com/pd/Peel-Seal-Instant-Waterproof-Repairs-6-in-x-25-ft-Aluminum-Roll-Flashing/1018733
> >>>>
> >>>> It sticks by itself on any surface, you don't need any brush on
> >> adhesive.
> >>>> Best to do is heat the panel of your van lightly with a heat gun to get
> >>> it
> >>>> warm then put the Peel & Seal on.
> >>>> I didn't notice any sag or run on because I never opened the panel to
> >>> check.
> >>>>
> >>>> On Sun, Apr 3, 2022 at 11:01 PM Jeff Palmer <w.jeff.palmer@icloud.com>
> >>>> wrote:
> >>>>
> >>>>> Just so I’m clear - peel and seal is a wrap of some sort?  When I
> >>> google
> >>>>> it I see a wrap but also a can that I assume you apply with a brush?
> >>>>>
> >>>>> If someone has a link to the Lowes product it would be appreciated!
> >>>>>
> >>>>> Only downside I have read about is that it may sag on vertical
> >>> surfaces.
> >>>>> ORR sounds like that’s what you’ve done?  Any bad experiences with
> >>> sagging?
> >>>>> (I’m talking about the van now!)
> >>>>>
> >>>>> Thanks
> >>>>> Jeff
> >>>>>
> >>>>>
> >>>>>> On Apr 3, 2022, at 10:42 AM, OlRivrRat <OlRivrRat@COMCAST.NET>
> >>> wrote:
> >>>>>>
> >>>>>>       I’ve installed Peel & Seal on My 90Westy in all 4 Doors & on
> >>>>> several Friends Vans where I usually
> >>>>>>
> >>>>>> put in Rear Quarters as well as All Doors,, It lessens the ability
> >>> of an
> >>>>> area of Tin to resonate sound & it
> >>>>>>
> >>>>>> does that amazingly well ~ Not even necessary to cover entire area,
> >>> just
> >>>>> whatever You can conveniently
> >>>>>>
> >>>>>> get to ~
> >>>>>>
> >>>>>>
> >>>>>>> On 2 Apr , 2022, at 5:11 PM, Richard Koerner <
> >> rjkinpb@SBCGLOBAL.NET
> >>>>
> >>>>> wrote:
> >>>>>>>
> >>>>>>> The stuff at Lowe's is called "Peel and Seal".  Peel & Seal
> >> Instant
> >>>>> Waterproof Repairs 6-in x 25-ft Aluminum Roll Flashing Lowes.com
> >>>>>>>
> >>>>>>> |  |  |
> >>>>>>> Peel & Seal Instant Waterproof Repairs ...
> >>>>>>> |
> >>>>>>>
> >>>>>>> I used it in the cabin area of van:  pedestals, floor, inside
> >> doors,
> >>>>> and also inside Slider.  Quite happy.  I also used it on the front
> >> area
> >>>>> under dashboard; unfortunately, this sheet metal area must get pretty
> >>> warm
> >>>>> from front radiator blow by, and as a result, evidence of "tar"
> >>> dripping
> >>>>> down on the sides into footwells.  I clean it up, and it later
> >>> re-appears.
> >>>>> But, even then, I have had no "tar" odors.  It's been in place over
> >> 12
> >>>>> years.  And yes, very significant road noise reduction, so worth it
> >> to
> >>> me.
> >>>>>>>
> >>>>>>>
> >>>>>>>  On Friday, April 1, 2022, 06:41:43 PM PDT, Gil Ngai <
> >>>>> eyebawlgil@gmail.com> wrote:
> >>>>>>>
> >>>>>>> What is roof patch? can you send a link?
> >>>>>>> Do you mean roofing tar?
> >>>>>>>
> >>>>>>> •••••••••••••••••••••••••••••••••••••••••••••••
> >>>>>>> *GIL NGAI* • *I TELL GOOD STORIES*
> >>>>>>> *filmmaker • DP • **chief storyteller • instructor*
> >>>>>>> * www.dayonemedia.ca <http://www.dayone-media.com/> *
> >>>>>>>
> >>>>>>>
> >>>>>>> On Fri, Apr 1, 2022 at 6:49 PM Stephen Grisanti <
> >> bike2vcu@yahoo.com
> >>>>
> >>>>> wrote:
> >>>>>>>
> >>>>>>>> I did years ago on our ‘87 Westy, had to order directly from the
> >>>>> source in
> >>>>>>>> Alberta. Freight runs the total up considerably so get enough
> >>> initially
> >>>>>>>> that you need not reorder.
> >>>>>>>>
> >>>>>>>> When mine did run out I used Roof Patch from Lowe’s that folks
> >>> belittle
> >>>>>>>> but the stuff looks (and smells) identical. Narrower roll and
> >> about
> >>>>> half
> >>>>>>>> the price. Seemed no different otherwise.
> >>>>>>>>
> >>>>>>>> Stephen
> >>>>>>>>
> >>>>>>>> Mobile
> >>>>>>>>
> >>>>>>>>> On Apr 1, 2022, at 7:37 PM, Gil Ngai <eyebawlgil@gmail.com>
> >>> wrote:
> >>>>>>>>>
> >>>>>>>>> B-Quiet Sound is having a 20% off sale now through the weekend.
> >>>>>>>>> Has anyone used this stuff?
> >>>>>>>>>
> >>>>>>>>> B-Quiet.com
> >>>>>>>>>
> >>>>>>>>> They advised me for a Vanagon to get one roll of Ultimate 50 and
> >>> one
> >>>>>>>> sheet
> >>>>>>>>> of VComp
> >>>>>>>>> should be enough to do the rear engine area, front doors and
> >> part
> >>> of
> >>>>> the
> >>>>>>>>> floors with the Ultimate and then put the VComp over the rear
> >>> bench.
> >>>>>>>>>
> >>>>>>>>> Gil
> >>>>>>>>>
> >>>>>>>>> •••••••••••••••••••••••••••••••••••••••••••••••
> >>>>>>>>> *GIL NGAI* • *I TELL GOOD STORIES*
> >>>>>>>>> *filmmaker • DP • **chief storyteller • instructor*
> >>>>>>>>> * www.dayonemedia.ca <http://www.dayone-media.com/> *
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>> On Fri, Apr 1, 2022 at 2:42 PM Karl Mullendore <
> >>>>>>>> tdiguru@westyventures.com>
> >>>>>>>>>> wrote:
> >>>>>>>>>>
> >>>>>>>>>> The first batch I bought out in Baltimore was about 35 bags,
> >>> then a
> >>>>> few
> >>>>>>>>>> years
> >>>>>>>>>> later found another place in PA that still had 47. I bought all
> >>> of it
> >>>>>>>> and
> >>>>>>>>>> sold
> >>>>>>>>>> most of it to others for their projects. I guess I should have
> >>> left a
> >>>>>>>> few
> >>>>>>>>>> more
> >>>>>>>>>> bags in MD.
> >>>>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>
> >>>>>
> >>>
> >>