12 January 2008, 23:23
JJPRemoving epoxy from Zeiss 56mm obj ring mount???
Folks,
I have a Zeiss riflescope which had a claw mount ring clamped and glued to the scope objective I have since removed the ring but the glue/epoxy remains. Any idea how to remove the cured glue without damaging the scope objective?
Thanks for your help
Joe
12 January 2008, 23:36
GeorgeSAvoid the temptation to use heat.

Seriously, there are epoxy solvents out there; perform an internet search on 'epoxy solvent'.
George
12 January 2008, 23:57
JJPHi George.
Thanks your right, I have been tempted.... I'll do some searching...
Joe
13 January 2008, 00:19
CustomstoxJoe, try sticking it in the freezer for a couple of hours and then try to "chip" it off with a mylon or plastic scraper, spatula.
13 January 2008, 01:01
Fish30114George, just curious--what is the technical reason not to use heat? Are the chemical charges in scopes susceptible to causing problems?
I've always figured it would be a bad idea to get to close to a heat source with your scope, but didn't really know why.....
13 January 2008, 02:04
JJPProblem with heat is you might make it too hot...
1) exceed the allowable expansion amount of the tube verses the glass and its seal.
2) burn the seal, glue or baked on coating..
Never know how things might react. If the temp drops I can take it outside and see if that makes a difference. Tried that last night but it only went to -10 or so Not cold enough...
13 January 2008, 06:46
Fish30114Makes sense, I considered much of that...
I'm such an idiot, I'd probably take an acetone or MEK soaked rag and just hold it on the Epoxy and keep on doing that...., or actually not so crazy, Golfworks sells an epoxy remover, and I would actually try that...
Good Luck
14 January 2008, 18:43
JJPAny other experience/options?
14 January 2008, 18:50
DMBquote:
Originally posted by Customstox:
Joe, try sticking it in the freezer for a couple of hours and then try to "chip" it off with a mylon or plastic scraper, spatula.
Ditto
Should pop right off after freezing.
Don
14 January 2008, 19:33
GeorgeSFish,
The glass and the tube will expand/contract at different rates and you might wreck the seals or crack the lenses. Also, I doubt high heat would be good for the lens coatings.

George
14 January 2008, 19:36
tsturmquote:
Originally posted by JJP:
Any other experience/options?
MEK is Epoxy solvent!!
acetone is slower than mek.

14 January 2008, 23:48
N. GarrettMethyl chloride takes the epoxy right off.
However, do a small area on the inferior surface of the scope first. You want to see if the methyl chloride effects the finish on the scope itself.
If it does, then I agree with using the freezer technique (i.e. freeze the scope and then scrape the epoxy off with your fingernail or something plastic).
Garrett