Shadeux
Shadeux GRM+ Memberand Reader
9/22/19 3:17 p.m.

Because I'm a dumbE36 M3, I've manage to smear some sort of interior glue on a plastic window. The glue is probably 10-15 years old, but still tacky. 

Any known glue solvent that won't harm a plastic window? 

Error404
Error404 New Reader
9/22/19 3:28 p.m.

Isopropyl alcohol and hot water?

Goo Gone?

 

RealMiniNoMore
RealMiniNoMore PowerDork
9/22/19 3:46 p.m.

Carefully scrape it with a fresh razor blade? 

Ransom
Ransom GRM+ Memberand UltimaDork
9/22/19 5:04 p.m.

Try the plastic razor scrapers? I haven't, but have a set floating in an online basket somewhere...

glueguy
glueguy GRM+ Memberand Dork
9/22/19 5:27 p.m.

Yikes, this will be tough.  I like the plastic scraper approach.  Use ice cubes to make the adhesive more brittle first.  I'm afraid that something like a citrus cleaner will cause it to smear (while removing some of the mass) and make the job tougher and more likely to leave a permanent haze.  Try soaking with Goo Gone or similar and let it soak in well and then razors from both ends toward the middle to lift it off.

EvanB
EvanB GRM+ Memberand MegaDork
9/22/19 5:50 p.m.

When glue guy says it will be tough you know it's gonna suck.

GIRTHQUAKE
GIRTHQUAKE Reader
9/22/19 6:35 p.m.

Maybe dry ice and the plastic scrapers, but that level of cold might be too much on the plastic.

Duke
Duke MegaDork
9/22/19 7:07 p.m.

You can try my favorite solvent, Bestine rubber cement thinner. It seems to be pretty benign on most plastics. I would try a dab on a noncritical area first, though. 

ronholm
ronholm Dork
9/22/19 8:23 p.m.

In reply to GIRTHQUAKE :

instead of dry ice use one of those cans of air for cleaning keyboards and whatnot...  Except hold it upside down when spraying...  they use HCF's which get very very cold.

Floating Doc
Floating Doc GRM+ Memberand SuperDork
9/22/19 8:44 p.m.

My go-to solvent for use on plastic is 91% rubbing alcohol. I've successfully used it on some car interior parts that had degraded until the surfaces were sticky. 

It took off the sticky layers, left the healthy plastic below untouched. 

Cheap, not super toxic or messy, and easy to find.

NOT A TA
NOT A TA Dork
9/22/19 8:49 p.m.

Wax & grease remover you'd use for paint work. Also a great way to remove stick on emblems.

Shadeux
Shadeux GRM+ Memberand Reader
9/23/19 10:11 a.m.

In reply to glueguy :

I tried Goo Gone. It softened the glue a bit. I like the plastic scraper approach. 

Shadeux
Shadeux GRM+ Memberand Reader
9/23/19 10:13 a.m.

In reply to Floating Doc :

Very interesting. I'll try it. Never thought about that.

Floating Doc
Floating Doc GRM+ Memberand SuperDork
9/23/19 11:10 a.m.
Shadeux said:

In reply to Floating Doc :

Very interesting. I'll try it. Never thought about that.

The other two ingredients were a terrycloth rag, and vigorous rubbing. Let us know how it works.

Shadeux
Shadeux GRM+ Memberand Reader
9/23/19 11:59 a.m.

In reply to Duke :

Geez. I've never heard of this but reading the internet it's the greatest thing since sliced bread. I'll definitely pick some up.

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