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ARABIC GUM with WATER for binder ?


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#1 castillareno

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Posted 10 September 2004 - 11:45 AM

You know the ideal proportion ARABIC GUM / WATER

(Spray; for binder final layer BP stars) of Gum arabic mixed with water?

#2 alany

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Posted 10 September 2004 - 01:05 PM

Kentish says 75 grams per litre, but Kyle (of passfire fame) says 27 grams per litre is sufficent.

#3 Creepin_pyro

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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?

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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 paul

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Posted 11 September 2004 - 08:21 AM

You can add a little amount of ascorbic acid to the solution, so it won?t ferment over the time.

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#5 castillareno

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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.

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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 castillareno

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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.

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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. :huh:

Edited by castillareno, 25 September 2004 - 05:02 PM.


#7 KingVinny

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Posted 25 September 2004 - 05:45 PM

Does anyone know where to get Arabic gum or Red gum in the UK?
Go hard and play safe!!!

#8 castillareno

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Posted 25 September 2004 - 06:07 PM

Does anyone know where to get Arabic gum or Red gum in the UK?

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I not know in the UK. :mellow:


I am Spanish and I write this message from Madrid (Spain).

Here it is very easy to obtain this product, GOMA ARABIGA, in shops of nourishment and good drug stores.

#9 Phoenix

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Posted 25 September 2004 - 08:45 PM

Does anyone know where to get Arabic gum or Red gum in the UK?


www.inoxia.co.uk sells both.

#10 paul

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Posted 25 September 2004 - 09:57 PM

http://kremer-pigmen...ntl.catalog.htm

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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