Frosty BlueTtube??

[electrodrummer2001]

hey guys,,
what is causing my blue tube too get a frost look to it..
it has happend to a clear tube also...i just dont want to waste all my tube...my guess is the flame but i dont reallt know anything

[garrick]

sounds like you are moving the glass when it is not hot enough which cause small wrinkles that look like frost kinda, hit it with a sharp flame and it will polish off

[brettodie]

not enough heat young jedi :) you need to get your glass hotter before you start shaping it. or you need to practice more to get steady enough hands because your moving the glass as it sets a little bit. best thing you could do is find someone local and pay them for a afternoon class. that will progress you furthur and faster then any online help youll be able to find. it will also save you alot of time and money in wasted materials ect. good luck and enjoy. peace brett

[e-jipt]

it's called detrification, i think I spelled that right.

[garrick]

no thats something completely different and much nastier. caused by over working the glass which i kinda doubt that someone that is fairly new to glass would be doing

[e-jipt]

really? I thought detrification was any wrinkles or frosting on/in the glass caused by moving it right before the glass becomes solid again.

[mindblowingglass]

Or it could be your leaveing salt deposits from swet on the glass, that will give a "frosty" look. (windex your tube b4 putting it in the flame, than keep your hands off it ( except the point)
if you have little "lines" and the frosty look, than you are working it with out enough heat.( get that sob molten hot b4 moveing it)

[garrick]

really? I thought detrification was any wrinkles or frosting on/in the glass caused by moving it right before the glass becomes solid again.

there have been quite a few threads on this in the past and people who are a hell of alot smarter than me explained it better than i ever could

[richsantaclaus]

http://www.warmtips.com/20051026.htm

[mistahead]

did it accidentally fall into the sandblaster :)

[newmexicomagma]

devitrification is from overworking the glass, this can be either skimmed off or supposedly salt or something. also mechanical devit is when the glass wrinkles from moving when too cool.

[electrodrummer2001]

i guess i am working to fast into the process....i never have green tube problem so i thought that was weird

[e-jipt]

cool, looks like I stand corrected then

[Frankie Hess]

If turning up your torch (to what should be neutral, slightly reducing or slightly oxidizing depending on what you're doing) does not seem to help, I would also check for leaks. I do this by cranking up my torch wide open, then spray anything that could possibly leak including the valves on your torch to where your regulators are hooked to your tanks, EVERYTHING! If your gasses are not mixing properly you can't get the heat. If you have no leaks you might need to learn how to get the flame settings I was talking about above. When I first started blowing glass I thought more oxy = more heat, well to much oxy = realy cool flame, and trying to do a lot of working in cool flames will give all sorts of problems!
Oh yeah, spray with a soap and water mixture, I put a nice amount of soap in the mixture for better detection results.
If you think it's your flame settings I'm sure a post here with what torch you're running would get you a lot of help.