gldknght
Well-Known Member
Has anyone tried baking soda?
Not yet, but it's a thought!Has anyone tried baking soda?
Not yet, but it's a thought!
Can anybody think of any reason to NOT try baking soda?
I dont believe the combustion of the BP releases moisture, the combustion byproducts though are highly hygroscopic so they absorb moisture from the air that creates the issue, and BP combustion also leaves a fair amount of soot to "gum" up sliding fits over time.I'd expect the very high moisture released by the ejection charges might make the baking soda sticky, or clump. It may just be a cleanup issue, if it doesn't get wet and stick things together. It's slightly hygroscopic, so it may get a little sticky just being outside in the humidity.
In a cardboard rocket, after flight, you can tell the model has changed dimensions (couplers tight, motors stick), due to heating and moisture in the ejection charge. I'd probably not add something that was water absorbing/soluble to this.
I don't think you will cause major heartache, but I don't think baking soda will stay free flowing when outside in the humidity for a while.
I dont believe the combustion of the BP releases moisture, the combustion byproducts though are highly hygroscopic so they absorb moisture from the air that creates the issue, and BP combustion also leaves a fair amount of soot to "gum" up sliding fits over time.
We’ve used this powdered chalk and it seems to work well. The nozzle & cap make it easy to dispense.
Tajima white chalk - Amazon
Harbor Freight sell some squeeze bottles that might do the job. https://www.harborfreight.com/8-oz-storage-bottles-with-twist-caps-3-pk-63694.htmlLike the dispenser.
I bought a gallon tub of USP Crushed limestone. Some of the red/orange colors seem a little persistent, so white will do. I may need to get one of the squeeze bottles to make it easier to carry around.
Harbor Freight sell some squeeze bottles that might do the job. https://www.harborfreight.com/8-oz-storage-bottles-with-twist-caps-3-pk-63694.html
And it burnsUnless they have changed the formula in the last 6 months, WalMarts Equate brand is talc, iirc the ingredient list was talc and fragrance. Look at the ingredient list many are corn starch which gets sticky when damp.
And its extremely messy on rockets and clothing.....but it does work, the competition guys seem to like it for visual tracking.An alternative is carpenter's chalk which is cheap $1.79 at home depot and comes in various colors.View attachment 423828
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