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Is it possible to flame polish PETg or Polycarbonate?

Both PETg and Polycarbonate are thermoplastics that share some similarities with Perspex®, certainly there are many applications where any of the three materials could be used. Polycarbonate doesn’t react well to flame polishing because the surface being heated tends to bubble and distort whereas PETg reacts remarkably well to the heat from flame polishing and it is possible to achieve similar results to that of Perspex®. Diamond polishing is also possible with both PETg and Polycarbonate provided the right type of cutters are used.