I make pretty much use of magnalium, and bind them with dextrin using water.
However, I read so much about; 'coat magnalium', 'spontaneous combustion', 'dangerous' etc. It made me so freaky, that I cannot leave them out of my sight. Everytime when im on my work, im there with the though: 'Did they survive the day'?
Is it really neccesary to coat stars which use magnalium.
Lets take a Nitrate based red star comp:
53% Strontium Nitrate,
11% Red Gum.
Instead of binding them with parlon/aceton I bind them with water. Because I roll my stars. And I dont like the parlon/aceton, because it makes a sticky mess.
How big is the chance they will ignite while drying? Ive not had any problems yet with any of my stars, which uses Mg/Ai.
Why dont you just coat them? you might ask.
Well, first of all. I am not going to use Potassium Dichromate, because of its toxicity and carcinogenicity. I can't work outside and dont have an incredible good ventilated area to work in. It ventilated enough to work with other chems, but I dont want to riks anything with toxic chems like potassium dichromate.
I do however have Linsead oil. But have not really an idea how I can coat magnlium with them. Ive read alot about it, but what ive understood so far is that its hard to do and makes an mess. But I will try it out when I get my new batch of Mg/Ai.
So the bottom question is. How scared do I have to be for the Mg/Ai Nitrate reaction?