Polish plexiglas

Plexiglas can be edited in a variety of ways. Including sawing, milling or cutting. However, something can happen with all of these machining techniques: the cut or milled edge is dull or maybe even rough after machining. In addition, large, once shiny and crystal clear Plexiglas surfaces can become dull and dull. You can eliminate all these deficiencies by polishing the Plexiglas. Below we show you different techniques and inexpensive alternatives to efficiently polish Plexiglas.

The different processing options of Plexiglas

Acrylic glass is extremely versatile and therefore appreciated by DIY enthusiasts beyond measure. You can saw, cut, mill and much more Plexiglas. Usually, however, there is the problem that the cut edge can be dull, dull and even roughened depending on the application.

Cutting and milling edges

The same is true of numerous articles made of Plexiglas. These become over time, dull, dull and have numerous small scratches on. But as well as cutting and milling edges, you can remedy these shortcomings. The specialized trade provides you with various special products that are particularly suitable for polishing Plexiglas.

Plexiglas surfaces

But most of them are very expensive and the purchased quantities are rather low. You can also polish Plexiglas much less expensive - edges as well as Plexiglas surfaces.

Step by step instructions for polishing Plexiglas

  • Sanding or polishing paste (block) based on grease, fine to very fine
  • Sandpaper in different grain sizes, depending on the machine used
  • Steel scraper blade (polish cutting edges)
  • alternatively HSS saw blade
  • Cylindrical grinder or orbital sander
  • polisher
  • Device for gentle clamping (vise, screw clamps, etc.)

1. Polish the cut edges of Plexiglas

a) Remove the cutting edge

With the scraper blade, first remove the cut edge. You can also remove the side burr well with the steel scraper blade. It must be a steel blade, as all other materials are too soft. Instead of the scraper, you can also use a HSS saw blade to pull off. You pull off the Plexiglas interface with the saw blade backs.

b) Grind the cutting edge

Now grind the cut edge in three passes of 400 grit over 600 to 800 to 1,000 to 1,200. Always press with feeling and never drag too long on any part of the plexiglas because of heat.

c) Polish the cutting edge

Now pick up the polishing wax with the polishing machine and work the same way over the cutting edge as you did with the grinding machine. Again, you must never polish too long in the same place. Polishing must be carried out in up to 5 work steps (3 to 5 times).

2. Polish Plexiglas surfaces

The same polishing paste (rather a wax block) can also be used to polish large Plexiglas surfaces. However, it may be necessary to use polishing and grinding pastes in different grades (from coarse to very fine).

Again, you must press the polishing machine to the Plexiglas (never too tight) and move forward quickly so that the Plexiglas never gets too hot. Repeat the work steps with increasingly fine polishing wax until you use "very fine" in the last polishing pass.

You can refurbish the surfaces of Plexiglas windows, letterpress or even of acrylic baths and shower trays as good as new.

Tips & Tricks

Use polishing pastes in which the abrasive is bound in grease. These polishing pastes are usually available as a block between 300 and 700 g. Depending on the manufacturer, different colors of the polishing paste indicate different materials that can be ground. But the fineness of the polishing pastes is also signaled. Many do-it-yourselfers wonder where the difference between acrylic and Plexiglas actually lies. Here you will receive extensive answers.

Video Board: How to Polish and Repair Scratched Plastic