mshaner

Hopefully I won't get blasted for this question. I did a search and came up empty.

Yes, I know that lead media is best when surfaced with antimony, but that being said (and the fact that I'm making my own) can the balls just be coated or do they have to be melted down and homogenized with the antimony? Moreover, is it necessary to add tin to the picture? I'm hoping I don't have to melt these things down and just so you'll have some context - I'm milling down some Mg "chips".

Thanks,

Shane

I placed an order for some vinyl resin a week or so ago and with my order I could receive 1 lb of zinc acetate for free...so why not? Thusfar in my venture to make my own igniters and rocket motors I've come across no use for this substance...what do you guys use it for and could it be used in a motor composition?

Thanks,

Shane

I've done my search and have come up empty on this site, so I'm going to go out on a limb and pose a question:

What is meal powder (sounds like something common)? And how is it used?

Thanks,

Shane

Hello All,

I've just received my shipment of Pot. Dichromate that I was going to use to coat my Mg according to Shimizu's method. HOWEVER, as I read the MSDS sheet I'm noticing just how nasty this stuff is. I knew it was mean, but I'm a bit concerned as I don't have a $300+ self-contained breathing apparatus in my drawer.

Two questions:

1. Once this stuff is in the water and heating up, are the vapors harmful too? I would assume so..

2. If I use 2-5% of it in a composition as a combustion catalyst when does it become less harmful or does it?

Thanks,

Shane Heilman


PS I knew I needed a NIOSH approved apparatus and I have one, but not self contained....not completely ignorant of the facts, just want to be enlightened.

Hello,

I've been experimenting with different igniter formulations for rocketry over the last few months because kits like Igniterman (with Mg), etc are becoming difficult to ship and therefore difficult to find. I've found some fairly good mixtures for igniters but I would also like to find a mixture for the red glassy material found on the end of commercial ematches. I use electric matches for setting off dual deployment charges for high altitude rockets and I need something that easily ignites with a simple 9v battery. The little charge basically pops instead of a sparking and burning.

Question: can anyone enlighten me on what the composition consists of?

If you need a snapshot, let me know.

Thank you.

Shane Heilman