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Red Red Wine Plexiglass 2423

December 14th, 2011

I have tested a Mini VAT resin with a 3mm thick sample ( 2423 ) red transparent
acrylic plexiglass piece provided by a local company and the results are only

It seems to block some, but not all of the UV and Near Visible.
Comparing to a Lee Filter sampler “Bloody Red”, the 2423 allowed a 0.5mm resin
slice to polymerize in 2~5 minute exposure, while when it was placed over the Lee Filter it did not
exhibit any polymerization for 20 min.


This is what it looked like in the mini VAT. A tribute to the RepRap crowd for inspiration and information.

I would assume (have to confirm) it will be safe if used with an incandescent or florescent bulb. Do not expect the red 2423 to stop the UV from sunlight or other sources from ruining a VAT full of resin and the print.

  1. Techartisan
    December 30th, 2011 at 21:00 | #1

    there are different grades of acrylic sheet, I imagine your tinted sheet is MC grade standard extruded sheet. Clear UF5 would have performed better. Red or amber UF5 sheet would be the best choice however.


    • Printer
      January 2nd, 2012 at 00:54 | #2

      Considering that the printer will usually be in the shade and indoors, I think this Plexi or PMMA will keep things well under control, unless the resin is a very reactive one. It is close to the 20% of the UF5. I have not been given any documentation or certificates.

  2. Toshitokio
    November 13th, 2012 at 15:00 | #3

    Roger you suck! :(

    • Printer
      November 14th, 2012 at 00:16 | #4

      Roger who?

  3. Hassie Monts
    March 25th, 2013 at 02:22 | #5

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