Devit spray question, and wine bottle question - WarmGlass.com

Devit spray question, and wine bottle question

This forum is for questions from newcomers to kiln-forming.

Moderator: Tony Smith

Post Reply
Shelley Lewis
Posts: 73
Joined: Wed Dec 11, 2013 11:14 am

Devit spray question, and wine bottle question

Postby Shelley Lewis » Tue Sep 08, 2015 1:49 pm

I tried flattening my first wine bottle. I made my own devit spray with 1 T Borax and 1 C distilled water. I was careful to decant it without disturbing any undissolved Borax. I sprayed the bottle down with devit solution, let it dry overnight, and fired. Question 1) why do I have spots on the bottle? They look like the spots left on dishes in the dishwasher when the Jetdry needs replaced. I had very carefully removed all the label residue and washed it. Question 2) is it possible to completely flatten the bottom of the bottle, or will that part always be slightly raised? Thanks for any insight or suggestions!

Stephen Richard
Posts: 302
Joined: Sun Jul 06, 2003 4:36 pm
Location: Glasgow, Scotland
Contact:

Re: Devit spray question, and wine bottle question

Postby Stephen Richard » Tue Sep 08, 2015 3:02 pm

I don't understand all of what you said. But here are some comments.
Borax solution. The cup of water needs to be heated to get the maximum saturation of the solution. It does not have to boil. When cool, pour off from sediment and add a drop or two of washing up liquid.
The spots you observe are devitrification. That is exactly what mild devitrification is like. It indicates either your solution was not strong enough, was not applied evenly, had areas where the solution did not spread over because of surface tension. The washing up liquid is there to reduce the surface tension of the borax solution.
At first I thought you meant the underside of the slumped piece. I presume you mean the original bottom of the bottle where it is typically thicker, and which typically falls over onto the top surface of the slumped bottle. Yes, of course it is possible to get this flat, by applying sufficient time and heat, but the time will be pretty long (maybe 3-5 hours soak) and the temperature pretty hot (maybe 850C). Float and bottle glass is pretty slow to move. But this is the realms of fusing, rather than slumping.
Steve Richard
You can view my Blog at: http://verrier-glass.blogspot.com/

Shelley Lewis
Posts: 73
Joined: Wed Dec 11, 2013 11:14 am

Re: Devit spray question, and wine bottle question

Postby Shelley Lewis » Tue Sep 08, 2015 6:53 pm

Thanks for the reply, Steve! I will try again :D

Barbara Elmore
Posts: 19
Joined: Wed Nov 19, 2003 5:47 pm
Location: State Road NC

Re: Devit spray question, and wine bottle question

Postby Barbara Elmore » Tue Sep 08, 2015 7:02 pm

If you have access to a tile saw, it's fairly easy to cut the bottom of the bottle off. Clean it
extremely well with a brass brush and Dawn on the cut edge, use your Borax spray and fire. If you're doing a lot of these, look into purchasing a Solo sprayer ( pump) to apply a fine mist. They are about $30 to $35 and worth every penny.
Thanks, Barbara Hale Elmore

"Good judgement comes from experience. Experience comes from bad judgement" Indian Proverb

Shelley Lewis
Posts: 73
Joined: Wed Dec 11, 2013 11:14 am

Re: Devit spray question, and wine bottle question

Postby Shelley Lewis » Tue Sep 08, 2015 7:27 pm

Thanks, Barbara!

rosanna gusler
Posts: 730
Joined: Mon Mar 10, 2003 2:22 pm
Location: wanchese north carolina
Contact:

Re: Devit spray question, and wine bottle question

Postby rosanna gusler » Mon Sep 21, 2015 12:47 pm

i only use distilled water for anything that will go on the glass.
artist, owner of wanchese art studio, marine finisher


Post Reply

Return to “Newcomer Forum”

Who is online

Users browsing this forum: No registered users and 10 guests

Warm Glass

2575 Old Glory Road, Suite 700
Suite 700
Clemmons, NC 27012
Phone: (336) 712 8003
Email: wg@warmglass.com