On Saturday, July 25, 2015 at 5:41:41 PM UTC-7, Charlie M. (UH & 002 owner/pilot) wrote:
On Saturday, July 25, 2015 at 4:53:53 PM UTC-4, Darryl Ramm wrote:
"Charlie M. (UH & 002 owner/pilot)" wrote:
/snip/
After dry, "Pledge" is a sorta cheap way to deal with a better surface,
some of the "spray on, wipe off" helps cleaning after.
I REALLY shy away from the "miracle polishes" (Nu-finish, etc) since a
lot have silicone in them, thus repairs/patches down the road don't stick well.

If you are worried about silicon wax it makes no sense to spray with
Pledge, which is a silicone oil based spray.

Not the last I saw, but there are always changes.

BTW, it's "silicone", not "silicon" (which is used in making PC chips, etc.)
I would have to go and look to see what Pledge is now, I may have to say, "I was incorrect in today's formulation".
I have no issue in learning new stuff.

Yes, obviously silicone, sorry iOS autocorrect got me.

And now I'm not on my iPhone.... here is a link to what is in Lemon Pledge. http://www.whatsinsidescjohnson.com/...mon-clean.aspx The silicone there is dimethicone aka polydimethylsiloxane aka "Silicone Oil" (https://en.wikipedia.org/wiki/Polydimethylsiloxane).

Pledge and similar sprays are something around 5-10% silicone oil, depending on product/dispenser type. That's what all the Pledge "no wax" and "no build-up" claims are about... it's silicone oil not a carnauba or petroleum wax based product that would build up. Being a woodworker it's the last thing I would ever get near any furniture I've finished (its harder to deal with silicone contamination with many wood finishes then automotive finishes, especially where silicon contamination is expected).

Many (Most?) of the spray plastic cleaners (spray bottles or aerosols) that folks use to clean canopies also contain silicone oil. Obviously that includes good old Lemon Pledge that many folks use, as well as specialized cleaners like Plexus Aircraft plastic Cleaner & Polish (my favorite). If you spray that stuff on your canopy you *are* coating nearby parts of your glider paint/gelcoat in silicone oil. I would use care to avoid getting it absolutely everywhere but hopefully any shop doing a finish repair or refinish will expect that/be able to deal with silicone contamination.