# 4" Enclosure Acrylic Type? **URL:** \ **Category:** Watertight Enclosures\ **Created:** [July 8, 2016, 1:59am UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378 "2016-07-08T01:59:32Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![bcragin](https://avatars.discourse-cdn.com/v4/letter/b/ecd19e/32.png) [@bcragin](https://discuss.bluerobotics.com/u/bcragin)\ **Post date:** [July 8, 2016, 1:59am UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/1 "2016-07-08T01:59:32Z")
What type of acrylic is used in the 4" series enclosures? I am trying to use an enclosure to house a uv light for imaging but it looks like the UV is possibly being filtered out. ---
**Author:** ![rjehangir](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rjehangir/32/671_2.png) [@rjehangir](https://discuss.bluerobotics.com/u/rjehangir)\ **Post date:** [July 8, 2016, 7:03am UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/2 "2016-07-08T07:03:26Z")
Hi Brent, I believe the acrylic is some formulation of the “Plexiglass” brand. According to their general information: > Plexiglas sheet absorbs the shorter wavelengths of ultraviolet (UV) energy , but transmits most of the longer wavelengths (those near the visible region) I can probably find the exact datasheet if you’re interested. The dome is made with a different formulation if you are using that. -Rusty ---
**Author:** ![bcragin](https://avatars.discourse-cdn.com/v4/letter/b/ecd19e/32.png) [@bcragin](https://discuss.bluerobotics.com/u/bcragin)\ **Post date:** [July 8, 2016, 7:13am UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/3 "2016-07-08T07:13:04Z")
Yes, standard acrylic should transmit the UV we are emitting. I’m guessing that the acrylic being used is possibly one of the UV rejecting types due to sun exposure. If you wouldn’t mind sending me the datasheet I would greatly appreciate it, the dome information may also be helpful for future reference but we are currently only emitting light through the sides of the tube.   Thank you, Brent ---
**Author:** ![rjehangir](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rjehangir/32/671_2.png) [@rjehangir](https://discuss.bluerobotics.com/u/rjehangir)\ **Post date:** [July 8, 2016, 3:12pm UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/4 "2016-07-08T15:12:04Z")
Brent, Alright. I asked the supplier for the datasheet and I’ll post it here if I can get it. -Rusty ---
**Author:** ![rjehangir](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rjehangir/32/671_2.png) [@rjehangir](https://discuss.bluerobotics.com/u/rjehangir)\ **Post date:** [July 12, 2016, 2:31am UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/5 "2016-07-12T02:31:22Z")
Brent, The datasheet is attached. Hopefully this helps. Best, Rusty [cast-acrylic-rodtube-data-sheet](https://discuss.bluerobotics.com/uploads/short-url/xcJwf4SRdG5Evj6LU34cb0ybtvX) (314 KB) ---
**Author:** ![bcragin](https://avatars.discourse-cdn.com/v4/letter/b/ecd19e/32.png) [@bcragin](https://discuss.bluerobotics.com/u/bcragin)\ **Post date:** [July 12, 2016, 5:14am UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/6 "2016-07-12T05:14:37Z")
Thanks, it looks like the tubing doesn’t transmit UV, at least not at 320nm or below. ---
**Author:** ![ori333](https://avatars.discourse-cdn.com/v4/letter/o/f08c70/32.png) [@ori333](https://discuss.bluerobotics.com/u/ori333)\ **Post date:** [February 26, 2021, 5:20pm UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/7 "2021-02-26T17:20:40Z")
@bcragin did you find a solution? I would also like an enclosure that passes UV light. Considering fabricating one myself if necessary. I have access to a industrial sized vacuform machine. @rjehangir Is the dome made out of the same material? ---
**Author:** ![bcragin](https://avatars.discourse-cdn.com/v4/letter/b/ecd19e/32.png) [@bcragin](https://discuss.bluerobotics.com/u/bcragin)\ **Post date:** [February 26, 2021, 6:12pm UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/9 "2021-02-26T18:12:20Z")
No, we had to make a custom enclosure as well. ---
**Author:** ![ori333](https://avatars.discourse-cdn.com/v4/letter/o/f08c70/32.png) [@ori333](https://discuss.bluerobotics.com/u/ori333)\ **Post date:** [February 26, 2021, 6:36pm UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/10 "2021-02-26T18:36:11Z")
Fantastic. Any details such as what material you used or vendor would be appreciated. Did you vacuform or laser cut a pre-existing flat sheet? or found UV transmitting domes and cylinders? ---
**Author:** ![rjehangir](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/rjehangir/32/671_2.png) [@rjehangir](https://discuss.bluerobotics.com/u/rjehangir)\ **Post date:** [March 7, 2021, 2:02am UTC](https://discuss.bluerobotics.com/t/4-enclosure-acrylic-type/378/11 "2021-03-07T02:02:29Z")
@ori333 - The domes are made of Mitsubishi Rayon Acrypet VH-001 PMMA.