[toca2_za]

toca2_za

toca2_za

Show toca2_za's last posts.

Show general stats for toca2_za.

• 
• Water Bottle Rocketeer
• Posts: 3

Hello all,

My name is Walter, I live in Jhb and I am new to Rocketry. I have been researching the topic for a while now and have started looking around for the components/chemicals.

I am interested in the Nitrate/Sorbitol propellant and would like to know where to get Sorbitol at a good price? I have found suppliers but can only get large quantities (25kg plus) or small quantities (100g @ R120-00 ex vat) at crazy prices. Can anybody help me?

[Ryno]

Ryno

Ryno

Visit Ryno's website.

Show Ryno's last posts.

Show general stats for Ryno.

• 
• Administrator
• High Power Rocketeer
• Posts: 164

Hi!

You should talk to Johann. Currently he is SAASA's main rocket fuel supplier.

Do you have a license to manufacture such compounds?

[toca2_za]

toca2_za

toca2_za

Show toca2_za's last posts.

Show general stats for toca2_za.

• 
• Water Bottle Rocketeer
• Posts: 3

Hi,

Thanks I will give Johann as buzz, I don’t have a license but I will look into that before I start making anything.


Regards

W

[johanngr]

johanngr

johanngr

Visit johanngr's website.

Show johanngr's last posts.

Show general stats for johanngr.

• 
• Administrator
• Model Rocketeer
• Posts: 60

Hi Walter,

proper chemicals are expensive.  I moved away from sugar-based propellants some time ago.  They are difficult to make, store and can be very unpredictable.

The resin-based propellants I now make have better structural properties, is cast at room temperature, is not affected by humidity and can be stored for years without being vacuum-sealed.

The cost is higher than sugar-based propellants but substantially lower than APCP.  Here are a few prices for the reloads we sell.  Each reload contains the fuel, liner, igniter, o-rings and ejection charges:

38mm
H-R50
I-R85
51mm
I-R100
Mid_J-R150
Full_J-R200
76mm
K-R400

You can compare these prices to the AeroTech or similar propellants and you'll be amazed at what they cost!  A K-reload can cost as much as R2500!

Go to www.rocketry.co.za and click on AeroSpace Research from the full price list and product information.

Cheers!

[toca2_za]

toca2_za

toca2_za

Show toca2_za's last posts.

Show general stats for toca2_za.

• 
• Water Bottle Rocketeer
• Posts: 3

Thanks Johann,

I have only been building small rockets to date, Total impulse 57N-sec if my calculations are correct. I will come for a visit soon to show you what I have been doing and to get my first kit.


Regards,


Walter