Some additional resources to consider:
1) The AROCKET website, and discussion list a Rocket Science Resource for
Experimental Rocketeers
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a Rocket Science Resource for Experimental Rocketeers
A resource promulgating technology to further enable human spaceward migration.
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2) The Rocketry Forum. You won't be able to discuss specifics on the forum
since they limit that to a subforum that requires US citizenship, but you can
try reaching out and asking for specifics via DM reply.
Propulsion
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Propulsion
Discussions of motors ranging from single-use black powder motors, composite
reloads, hybrids, etc.
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3) RCS Rocket Motor Components. They may be willing to provide info on what
to look for chemistry-wise. Can't hurt to ask.The RCS Store
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The RCS Store
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Mike
On Tuesday, December 29, 2020, 10:55:41 AM PST, Richard Nakka
<richard.rocketry@xxxxxxxxx> wrote:
Sorry, Nikolai, I do not know enough about epoxies to give you what you want.
All I can say is that the type of epoxy that I used was a two-part consisting
of equal parts resin and hardener. Used for coating table tops. Check Amazon,
there are lots of these particular epoxies available and I'll bet they are all
similar composition. You may need to do some research yourself on epoxies and
see if you can figure out what the different types are.Richard
On Tue, Dec 29, 2020 at 10:44 AM Nikolai Nielsen <nielsen.nikolai86@xxxxxxxxx>
wrote:
could you recommend a type of epoxy then so I can have something to look for?
brand names for what you can get there mean little here.
Nikolai Nielsen
On Tue, 29 Dec 2020 at 18:18, Richard Nakka <richard.rocketry@xxxxxxxxx> wrote:
Nikolai, I do not recommend using West epoxy, it reacts with the AP during cure
and makes the grain very porous and otherwise unsuitable. I had a particularly
nasty cato with the one grain I test fired. The epoxy that I did have success
with is the kind used for putting a hard coating on tabletops. This kind used
two equal parts epoxy/hardener. There should be no ammonia smell (or very
little) during mixing, this is a good indicator. The brand I used was NuLustre,
but there seems to be many brands available.Richard
On Tue, Dec 29, 2020 at 2:45 AM Nikolai Nielsen <nielsen.nikolai86@xxxxxxxxx>
wrote:
I see the one you suggested is a bisphenol A (BPA) based epoxy and so is what
Richard used in his RNX fuel. Should that be what I look out for?
Nikolai Nielsen
On Tue, 29 Dec 2020 at 10:15, Nikolai Nielsen <nielsen.nikolai86@xxxxxxxxx>
wrote:
The problem with epoxy recipes is I have no idea what my local equivalent is.
All these epoxys that are mentioned are branded items.
On Tue, 29 Dec 2020, 6:10 AM akazilla, <dmarc-noreply@xxxxxxxxxxxxx> wrote:
Hello Nikolai,Have you considered using EPON 828 epoxy? it is an older epoxy
resin but available pretty easily. Shell chemical makes the stuff so start with
them.Best of luck,Larry
Sent via the Samsung Galaxy S8+, an AT&T 5G Evolution capable smartphone
-------- Original message --------From: Nikolai Nielsen
<nielsen.nikolai86@xxxxxxxxx> Date: 12/28/20 18:05 (GMT-06:00) To:
sugpro@xxxxxxxxxxxxx Subject: [sugpro] AP fuels
does anybody have the burn rate data for Ammonium perchlorate based propellants
that can be made without specialist resins? Are there any recipes for silicone
or polyurethane resin?
Nikolai Nielsen
