Silicone sealant for pop pop boat boilers Micro Hydro Electric Power 1 day ago   05:28

Silicone sealant for pop pop boat boilers PART 1 FALSE START

Magnus Ericsson - How to make a pop-pop or put-put boatmotor with silicone, no welding

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Usual Components
Aluminium tube
Aluminium drinks can
Candle or tea light
Two part epoxy resin
Plastic bottle

Pop Pop boats playlist
RC Pop Pop boats
Toy Boats playlist
Daryl Foster devotes his channel to Putt Putt boats and here is the first one on his channel also back in 2009
Daryl Foster's last pop pop boat video
Here is the link to DaveHax tutorial which I found excellent
sciencetoymaker has a full step by step tutorial series on putt putt (pop pop) boats starting in January 2009 with episode 1 here
Here is a good video on tweaking the speed of these boats
This link that explains the general annealing process without getting too technical and here is a YouTube video on the subject by George Goehl

Some history on Pop Pop boats you look at this Wikipedia link on the subject they have been around since at least 1891 when a patent was filed by a Frenchman named Thomas Piot.

Water in the boiler is turned to steam. The steam has a greater volume than the water so it pushes out of the boiler and down the tube. In the tube it cools, condenses and contracts so it is drawn back into the boiler and the process repeats. The action of the steam pushing into the tube pushes the existing water in the tube out the back and that drives the boat forwards. When the steam cools it condenses and contracts so the external pressure pushes the water back up the tube.
If your next question is "why doesn't the boat oscillate backwards and forwards due to this push-pull effect?" try blowing a candle out and then try sucking a candle out and you will see the blow is fairly directional but the suck is not.

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Comments 10 Comments

Hermit Oldguy
I could do with something like that to make a sound isolation mat to put under my kettle, so when I make a cuppa in the middle of the night, less noise will go through the worktop and walls.
Doc Ink
it could have made good wheels if it would finish drying
Magnus Ericsson
Sorry, should have told you, tried to use old silicone like you did, like five years old, and it wouldnt harden, stayed mushy and didnt dry out of the cartridge, dont know why...
JP Slayer Racing
Did you trash it after? Or are you letting it dry more?
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Micro Hydro Electric Power Silicone sealant for pop pop boat boilers 1 day ago   12:29

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