What guage hypodermic needle would be ideal for dispensing Norland? Tried using a toothpick and did not like the way it went in and on…
I use plastic disposable pipettes. Pretty narrow.
Here’s what I received in a PM a few years ago…, sounds like a few good ideas…., cannot say I have followed all of it but I do follow 1 & 2
Re: Tritium installation problems
Here’s a few things that will help:
1) Never apply the adhesive in 2 steps and never apply it on top of the vial. This will always trap air under the adhesive in the form of a bubble(s). Attempting to break this bubble will usually result in more smaller bubbles. The more you mess with it, the worse it will get.
2) First, fill the slot with enough adhesive to cover the vial when put in place. This will typically require filling the slot 1/2 way. SLOWLY press the vial into the adhesive. This will push the adhesive around and on top of the vial without introducing air, hence no bubbles.
3) Heat the part just prior to applying the adhesive. This will make it less viscous. It will flow around the vial faster with less chance of trapping air. If you do get a bubble, it will rise to the top faster and be easier to break.
4) Work under magnification. Get yourself a $2 pair of non-prescription reading glasses. 2X magnification is fine. They will allow you to see bubbles your naked eye can’t.
I use a plastic toothpick. Maybe it’s smoother so easier to control? I don’t know, but I’ve got no complaints.