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Decanting Question
Posted: Mon Jul 22, 2019 11:52 am
by mse240966
First time decanting Tamiya Spray Cans, and something unexpected happened. The straw got very cold, and the glass mixing jar to the point frost appeared on the straw. It was decanted at room temperature and the can has been left at room temperate. Is this normal?
Re: Decanting Question
Posted: Mon Jul 22, 2019 12:11 pm
by Gary30
Sounds entirely normal, due to the propellant gasses in the aerosol.
Re: Decanting Question
Posted: Mon Jul 22, 2019 12:41 pm
by digger303
Yep Gary is right, as the gases go from liquid to gas they adsorb energy from the surrounding atmosphere and become very cold even to the point of causing ice crystals to form. Lpg is commonly used as a propellant this expands 270 times in volume as it goes from a liquid to gas. It is a liquid only when under pressure.
Re: Decanting Question
Posted: Mon Jul 22, 2019 12:46 pm
by mse240966
Cheer guys, makes sense now thinking of it.
Re: Decanting Question
Posted: Mon Jul 22, 2019 4:16 pm
by Twokidsnosleep
mse240966 wrote: Mon Jul 22, 2019 12:46 pm
Cheer guys, makes sense now thinking of it.
Yep all is good
DO NOT PUT A LID ON !!!
Not until all the bubbling stops inside or you will explode paint everywhere
Usually a couple hours until you can gently swirl and no bubbles but I leave overnight