ARABIC GUM with WATER for binder ?
#1
Posted 10 September 2004 - 11:45 AM
(Spray; for binder final layer BP stars) of Gum arabic mixed with water?
#2
Posted 10 September 2004 - 01:05 PM
http://www.vk2zay.net/
#3
Posted 10 September 2004 - 01:08 PM
You know the ideal proportion ARABIC GUM / WATER
(Spray; for binder final layer BP stars) of Gum arabic mixed with water?
I have heard of 4%, 7%, and 10% being used, but I can't remember which formulas the different percentages came from.
Also, you might want to consider this:
"Gum arabic is acidic due to its high content of glucuronic acids, although
these generally form salts with alkali or alkaline earth metals.
By using a freshly boiled water addition much of the bacterial action can be
hindered.
Gum arabic is a very good binder if pure water is used as a solvent."
I've read that prepared Gum Arabic solution should be used on the day of production, to stop it from beginning to ferment, but I have no direct experience with making it. I have only used pre-prepared stuff, which seems to store well - I have a pot of it sitting on my shelf.
#4
Posted 11 September 2004 - 08:21 AM
#5
Posted 16 September 2004 - 12:32 AM
You can add a little amount of ascorbic acid to the solution, so it won?t ferment over the time.
Why Is very difficult to dissolve the ARABIC GUM, in water ?
One day or two to be dissolved, completely ?
The water must be "cool" or "hot", for it ?
Yet, I do not know the ideal proportion ARABIC GUM- WATER for "prime" with BP my stars rolling.
Please. I need to help.
Edited by castillareno, 25 September 2004 - 05:01 PM.
#6
Posted 25 September 2004 - 04:48 PM
You can add a little amount of ascorbic acid to the solution, so it won?t ferment over the time.
Some type of reaction can exist, decomposition ? spontaneous combustion, to the contact the ascorbic acid (vitamin C) of strong oxidizers: as nitrates, perchlorates, clorine donors ? metallic powders?
Regards, Paul.
Edited by castillareno, 25 September 2004 - 05:02 PM.
#7
Posted 25 September 2004 - 05:45 PM
#9
Posted 25 September 2004 - 08:45 PM
#10
Posted 25 September 2004 - 09:57 PM
It is listed under: Gum accroides
and Gum arabic
I order from that shop, too. They have one for germany only, so they?re quite "cheap". 1 kilo costs 18.5? there (red gum). One kilo gum arabic is 8.5?.
Don?t know the shipping costs to the UK....
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