NEVER PUNCTURE A PAINT CAN!!! (Unless you just have to...) Brand new can that quits spraying, up on the shelf with all the other dead soldiers, waiting for HazMat recycle day? Or you just need a tiny bit of a cool color, but need the fine control of your airbrush? The problem is, the propellant IS the paint while under pressure in the can, and boils over like a hot radiator when the pressure is gone. Boyles Law will color a fools world. Puncturing greatly reduces the pressure-vessels integrity, possibly causing instant rupture and a great plume of highly flammable, possibly explosive paint mist. So, ONLY A FOOL would do this: a bit of welding and scrap metal widens a self-piercing (icemaker) valve to accept a 2-1/2 muffler clamp. Select a valve with very thick gasket, one that unscrews from the saddle clamp so clamp can be welded, and recontoured in a vise to closely match the radius of a spray can. (NEVER DO THIS!) A coffee can completes the spray can decant tool. Get outdoors, on a very still windless day, FAR AWAY from houses, cars, trees, fences, children, pets, flames, sparks, cigarettes, other sources of ignition, onlookers, lawyers, or anything worth more than a $3 spray can. Wear EVERY item of safety equipment in your arsenal, including goggles, gloves, full body armor and your favorite lucky (irreplaceable) rock concert t-shirt. Make sure the gasket is in place and the piercing needle is retracted into the valve, attach the device to the top of the can, direct the hose into the coffee can, and prop up the assembly securely so the can tilts slightly away from the valve. Close the valve, piercing the can, and SLOWLY open until the gas begins to escape. It is best to let it outgas for hours, preferably overnight, shaking the can a little bit every few hours to excite the remaining propellant. It is best to let it cycle through an entire days temperature extremes, and proceed at the coolest. Even after all this, NEVER (unless you must) use your pointy beer can opener to open the bottom of the car, and drain the contents into a metal container much bigger than apparently required, as it may still boil. Stir it to excite the remaining gas bubbles, and its ready for your detail gun or airbrush. It may still be able to self-exert pressure on any storage container, so consider venting if youre really that damn cheap. If still alive and roughly the same color, further mangle the empty dripping can to extract the priceless shaky marble inside, to prove that youre a man. It should be displayed atop your empty can of paint thinner (dont you wish youd bought a new one before you began this foolish endeavor, just in case you need a bit of clean-up). NEVER DO THIS!!!
Posted on: Sun, 23 Mar 2014 13:51:09 +0000
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