Have you tried nail polish remover?
Most glass cleaners use a razor blade to remove stubborn dirt from glass.
ANS 2 - Depends what kind of glue it is. If it's hardened wood glue or any form of PVA, a razor blade or craft knife is good. This will work for most hard glues.
The best way is to use something like Goo Gone first to see if it comes off. If not, then go a level stronger and try Goof Off. No matter what removes it the plexiglass will be marred. -Use plexiglass polish to clean it up again. -Polishes are available in different grades at stores that sell Plastics and Fibreglas.
Go to your local Plastics and Fibreglass shop and get Perspex/Plexiglas polish. -There are 4-5 grades available.
Rub it with a rag dipped in Goof Off.
To seal and join plexiglas in aircraft construction
Plexiglas has it's own proprietary adhesives. Most are essentially plexiglas melted in a liquid such as Methyl ethyl ketone. -Used properly this melts the edges together, -the smoother the cut edge, the better your joint will be. I smooth my edges on a planer. Adhesives for different uses with Plexiglass are IPS Weld On #4, #10 and #16. -Many of these are available in local plastics stores.
You get plexiglass/perspex glue . -Weld On #3 , #4 or #16, depending on how tick you want the seam to be.
Plexiglas weighs less
Paint thinnerANS 2 - Depends what type of glue or adhesive. Many products will mar plexiglass. Paint thinner will only make it greasy.
There are many kinds of 'plastic'. Possibly over hundred kinds of plastic adhesives. Please say which plastic, polystyrene, polycarbonate, plexiglas etc.
A plexiglas box is a light transparent weather resistant thermoplastic container.
School glue can be removed from cotton first by scraping off any dried glue and second by soaking it in cold water. A pretreatment like OxyClean can be applied before you soak it. Once the glue feels gone, the cotton can be thrown into the washer as you would normally wash it.
The density of plexiglas is rho = 1,190 kg/m³ or rho = 1.19 g/cm3.
they heat up the glue with a laser gun, then they tug on the little bracket, and file down the remaining glue.
The advantages of Plexiglas compared to that of normal glass are first that Plexiglas cost a fraction of the price, second it is very durable and wont shatter like glass.
Plexiglas