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Boat Forum / Building / March 2006getting adhesive off Lexan
I've got some old Lexan that still has the protective paper on it and last weekend used a piece for a science project with my daughter. The project, a simple solar oven, would have taken us about 1.5 hours to build, but when I broke out a piece of the Lexan, I had the worst time getting the adhesive off that was holding the protective paper. This took 3 hours, experimenting with soap, vinager, kroll oil, even acetone (small scrape- ruined), and I finally gave up and used a window scraper which ruined the surface. Worked ok for the oven, but wouldn't want my ports or companionway boards to look like that! I've had this stuff sitting around, waiting for a project, for more than 10 years in Florida heat and humidity. I'd like to be able to use the rest and need advice on getting the paper/adhesive off. Thanks, MMC > I've got some old Lexan that still has the protective paper on it and > last weekend used a piece for a science project with my daughter. [quoted text clipped - 10 lines] > paper/adhesive off. > Thanks, MMC I just cut a piece a few days ago that was even older (16 years), peeled off the paper. It didn't want to come off easily, paper kept wanting to tear...when it did I stopped and started working from another area. Took maybe 5 minutes for a piece about 1 sq.ft. I'm in Florida too. -- dadiOH ____________________________ dadiOH's dandies v3.06... ...a help file of info about MP3s, recording from LP/cassette and tips & tricks on this and that. Get it at http://mysite.verizon.net/xico > I've got some old Lexan that still has the protective paper on it and last > weekend used a piece for a science project with my daughter. [quoted text clipped - 9 lines] > I'd like to be able to use the rest and need advice on getting the > paper/adhesive off. Heat gun @#@ I use automotive wax and oil remover, body shops use this product before painting.Does not damage paint or plastic surfaces. BT. > I've got some old Lexan that still has the protective paper on it and last > weekend used a piece for a science project with my daughter. [quoted text clipped - 12 lines] > paper/adhesive off. > Thanks, MMC I use Goof Off adhesive remover. Works well and does not seem to haze the plastic. Also a big believer in McGuire's Plastic Polish. Even use it on my old Maui Jims.  SignatureGlenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com > I've got some old Lexan that still has the protective paper on it and last > weekend used a piece for a science project with my daughter. [quoted text clipped - 12 lines] > paper/adhesive off. > Thanks, MMC Start at the bottom of the ladder of solvents and escalate 'til someone wins. My progression is: Mineral spirits (aka paint thinner, tar & oil remover) Toluene (AKA goof-off) Lacquer thinner Acetone dynamite or nitric acid (joke) > I've got some old Lexan that still has the protective paper on it and last > weekend used a piece for a science project with my daughter. [quoted text clipped - 10 lines] > paper/adhesive off. > Thanks, MMC This almost ranks as an FAQ on the aviation homebuilders lists and if I had a real good memory I could say with authority many find success using methel alcohol. >Start at the bottom of the ladder of solvents and escalate 'til someone >wins. [quoted text clipped - 21 lines] >> paper/adhesive off. >> Thanks, MMC Steam ? > Start at the bottom of the ladder of solvents and escalate 'til someone > wins. [quoted text clipped - 22 lines] >> paper/adhesive off. >> Thanks, MMC Plenty of options to try BEFORE I actually need to use this stuff again. Never had any dynamite and I'm all out of C-4 so that option's a no-go. Acetone instantly ruins the finish. Thanks everyone. MMC > Steam ? > [quoted text clipped - 24 lines] > >> paper/adhesive off. > >> Thanks, MMC > Plenty of options to try BEFORE I actually need to use this stuff again. > Never had any dynamite and I'm all out of C-4 so that option's a no-go. > Acetone instantly ruins the finish. As will many of the 'tips' folks have suggested you 'try'. This topic was covered a few months ago and the owner of Spectre Products (who has been working Lexan for many years) posted "the best way to remove the paper is with a heat gun". So if you want to get the job done, use a heat gun. If you want to experiment (and ruin the finish, make a mess, or start a fire) then use chemicals. > > Acetone instantly ruins the finish. > As will many of the 'tips' folks have suggested you 'try'. Listen to bBob............ He has the right idea. LEXAN CLEANING The use of solvents which are not compatible with Lexan - polycarbonate will result in the softening, crazing, and/or cracking of the plastic part. This is especially true of polycarbonate lamps and mounting bases which may be under stress in their normal applications. Polycarbonate panels are resistant to some chemical and products non-resistant to others. Resistance can be effected by the chemical concentration, duration of exposure, degree of pressure and temperature at time of contact. SOLVENTS/CLEANERS COMPATIBLE WITH POLYCARBONATE: Mild soap and water Mineral Spirits Mexane VM and P Naphtha Varsol No.2 #1 & #3 denatured alcohol Freone TF and TE-35 Ethanol 10% Sol Bon Ami Dirtex 2% Sol. Reg. Joy Heptane White Kerosene Methyl, isopropyl and isobutyl alcohols Lacryl PCL-2035 polycarbonate cleaner Petroleum Ether/65 degrees C boiling point Acetic Acid Ammonium Chloride Antimony Chloride Borax in Water Butane Calcium Chloride Calcium Hypochloride Carbon Dioxide Carbon Monoxide Citric Acid - 10% Copper Sulphate Ethyl Alcohol - 95% Ethylene Glycol Formain - 10% Hydrochloric Acid - 20% Hydroflouric Acid - 5% Mercury Methane Oxygen Ozone Sulphur Water Urea (You just might want to say piss on it......................) SOLVENTS/CLEANERS NOT TO BE USED WITH POLYCARBONATE: Acetone Acrylonitrile Ammonia Amyl Acetate Benzene Bromine Butyl Acetate Caustic Soda Chloroform Dimethyl Formamide Hydrochloric Acid-Conc. Hydroflouric Acid-Conc. Iodine Methanol Methyl Ethyl Ketone Perchloroethylene Styrene Toluol Sulphuric Acid-Conc. Xylene Cyclohexone Glycerine Sulphur Dioxide Diesel Oil HeatingFuel Turpentine Formic Acid Jet Fuel Gasoline Perchloric Acid-Conc. Another BOb Thanks Another Bob! Got to able to get somewhere with the goodies on your list. Hopefully without guys in dark suits escorting me.... MMC > > > Acetone instantly ruins the finish. > > As will many of the 'tips' folks have suggested you 'try'. [quoted text clipped - 81 lines] > > Another BOb Tried the heat gun-didn't work and warped the Lexan. The adhesive is a hard solid after all these years. If "owner of Spectre Products (who has been working Lexan for many years)" had a piece of THIS Lexan he'd be looking for another option also. I've been using chemicals, in one form or another, all my life and haven't burnt anything down yet. MMC > > Plenty of options to try BEFORE I actually need to use this stuff again. > > Never had any dynamite and I'm all out of C-4 so that option's a no-go. [quoted text clipped - 9 lines] > experiment (and ruin the finish, make a mess, or start a fire) then use > chemicals. There is a product called Adhesive release that will help remove covering. It is made by Seal. It is listed as "Unseal Adhesive Releasing Solvent". It is made by Hunt Corporation, Statesville, NC 28677. You could also check with a picture frame supplier. Most carry it. If you can not find it send me an e-mail. I can get some for you. Thanks Ron Thanks Ron. I did a search for this stuff with no luck, do you know what the active ingredient is? MMC > There is a product called Adhesive release that will help remove > covering. It is made by Seal. It is listed as "Unseal Adhesive [quoted text clipped - 6 lines] > > Thanks Ron The can says that the active ingredient is Heptane. Then it says it also contains benzene and toulene. We use it on plex all the time. Great product. Go to any frame shop and the can get you a can. Called adhesive release. Ron Benzene and Toluene? Geez, can you say "Carcinogenic"? Thanks Ron, I'll give it a shot. > The can says that the active ingredient is Heptane. Then it says it > also contains benzene and toulene. [quoted text clipped - 3 lines] > > Ron |
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