Jump to content


Photo
- - - - -

Transparent Colorless waterbased Gel. How to?


  • Please log in to reply
5 replies to this topic

#1 netrat

netrat

    Quark

  • Members
  • 23 posts

Posted 22 September 2010 - 07:31 AM

Is it possible to make a completely transparent, colorless gel based on water?
I need it for an optical instrument, replacing glass with gel.
  • 0

#2 Mr Skeptic

Mr Skeptic

    iDon't-Believe-You

  • Moderators
  • 8,309 posts
  • LocationDunkirk, NY

Posted 22 September 2010 - 03:22 PM

Nothing is completely transparent. A gel would be problematic for optical instruments since its size/shape would change if water content changed, and you would have humidity in your instrument maybe fogging up your lenses.
  • 0
Our voting system is broken! It nearly guarantees that we will have only two political parties that have any chance of winning, and that they will be very similar.

#3 netrat

netrat

    Quark

  • Members
  • 23 posts

Posted 22 September 2010 - 08:28 PM

Nothing is completely transparent. A gel would be problematic for optical instruments since its size/shape would change if water content changed, and you would have humidity in your instrument maybe fogging up your lenses.


I have planned to protect the instrument inside airtight glass casing. Only The complex shapes made of glass inside the instrument will be replaced by gel.
A little color is tolerable. But not like agar gel which finally turns yellow.
Some hair gels are completely colorless. But Is it possible to make a cheap(cheaper than shaped glass) water-based gel?
  • 0

#4 mississippichem

mississippichem

    fluorescent protein

  • Resident Experts
  • 1,681 posts
  • LocationMissouri, USA

Posted 22 September 2010 - 10:10 PM

I have planned to protect the instrument inside airtight glass casing. Only The complex shapes made of glass inside the instrument will be replaced by gel.
A little color is tolerable. But not like agar gel which finally turns yellow.
Some hair gels are completely colorless. But Is it possible to make a cheap(cheaper than shaped glass) water-based gel?


See the wikipedia article for aerogel. That's the closest thing I can think of. There they're hard to make though, and are fairly hygroscopic (water makes them lose their transparency).

Edited for stupidity

Edited by mississippichem, 22 September 2010 - 10:12 PM.

  • 0
You've come a long way. Remember back when we defined what a velocity meant? Now we are talking about an antisymmetric tensor of second rank in four dimensions.

-Feynman Lectures on Physics II


#5 Mr Skeptic

Mr Skeptic

    iDon't-Believe-You

  • Moderators
  • 8,309 posts
  • LocationDunkirk, NY

Posted 22 September 2010 - 11:34 PM

Well, there's the gel that we have in our eyes, and the lens in our eyes (mostly collagen I think). There's also some (proposed?) cameras with flexible lenses to cut down on the huge assortment of lenses and mechanics in the camera.
  • 0
Our voting system is broken! It nearly guarantees that we will have only two political parties that have any chance of winning, and that they will be very similar.

#6 rogerxd45

rogerxd45

    Meson

  • Senior Members
  • 164 posts

Posted 2 October 2010 - 08:48 AM

cheap generic sex lube is clear....at least the one i have right now is, its mostly water and glycerin and a few other ingredients. its just plain "water based lubricating jelly" no flavors or anything like that and it appears to be perfectly clear to me
  • 0




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users