Q&A for How to Clean Plexiglass

Let the Plexiglass soak in warm water for an hour or two. This will soften up the decals well enough to start scraping them off with a razor blade.

Tape residue will most likely need to be removed with a razor blade or sander, and then buffed once it is removed.

If it's SprayLat coating, WD-40 does a reasonable job of working the stuff free. Naptha is good. But be sure you know whether it is plexi or polycarbonate, as poly is easily damaged by petroleum distillates. With the blue plastic film, it can be softened and removed using a hair dryer. Gently warm it to soften it. Be careful not to get the plexi too hot.

Put some paper over it and heat the paper with a lighter -- just enough for the wax to melt and be absorbed by the paper. Repeat this process until all the wax is gone.

Buy a Norwex cloth on Amazon or at a Norwex party. Just add water to the cloth and it will come right off.

Yes, but I consider spraying it on a paper towel, then wiping down the glass with the product.

If you are taking your boat out in salt water, it could be the salt that is sticking around after the evaporation. Consider buying products like Brillianize or Novus that are specific to plexiglass cleaning, and wipe away the cloudiness with a microfiber cloth.

As long as you properly drain and empty your fish tank, you can treat it just like any other plexiglass. Take care to remove any soapy water or other cleaning products from the tank before refilling it.

A soft, barely wet cloth might do the trick. Maybe some Mr.Clean glass washer.

As long as you empty the popcorn machine before cleaning, you should be able to follow the regular steps of cleaning plexiglass. Just make sure you let the popper dry and remove any soapy water before using it again!

Crazy glue (cyanoacrylate) glue works well to glue plexiglass together. The resulting bonds are almost indestructible.

If your can of bug spray may have contained alcohol or ammonia, the accident could have permanently damaged the plexiglass. Try following these steps and, if they do not work, you may have to have the plexiglass replaced. Good luck!

Use plastic polish. There are several manufacturers that make multiple step polish kits. For light scratching/fogging, you can usually just buff it out with spray polish and a soft cloth.

The cloudiness might be residual glue that thinned down from the alcohol. Use an acrylic safe product like Brillianize or Novus #1 to wet it down and wipe with a microfiber cloth. It's the cloth that'll remove the glue, but make sure to only wipe plexiglass that's wet and use a clean area of the cloth each time. If that doesn't work after multiple attempts, Novus also makes a more aggressive plastic polish. Spray on and buff with a microfiber cloth. I use it all the time with sneeze guards, sunglasses, motorcycle goggles, and clear helmet visors.

See if a weak soap/water solution (1 teaspoon per gallon) and a microfiber cloth do the trick. If not, use a plastic polish like Novus#2 or #3 if necessary. Follow the directions and your plexiglass should be crystal clear.

Either provide some kind of source of warm air in the blind or use a dual pane window to isolate the inside/outside temperature variations.

While vinegar is a strong and powerful cleaning tool that can safely be used on traditional glass or Plexiglas windows, it is too acidic for acrylic surfaces and will quickly damage your windows.