How to refill the air in your old spray cans

[vwuguy]

So you went through the winter and left your spray cans outside in the -20 temperatures and it is spring and the paint won't come out anymore
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or you got a spray can of something that has been sitting for decades and you want to use the can instead of throwing it out
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here is a neat trick to just refill the air in the spray can here is how



Link


cheers hope it saves you some hastle be careful though wear safety glasses
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[FarmerBill]

I wonder what a face full of shrapnel soaked in PB Blaster feels like?

Just kidding, most of these cans are built to handle 200 psi. I would imagine it would be difficult to exceed that with most shop compressors. The only problem I could see would be putting moisture from the compressed air in contact with the steel and corroding it, or contaminating the contents of the can. Or trying to pressurize a damaged can. Bottom line, play safe with compressed gasses, remember that's how they killed Jaws.

[NUTSFORBUSES]

[hitest]

Is this just a trick to try to get at our buses and widows?
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[aa390392]

^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^
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getting grumpy & less tolerant!


55 ragtop
56 delux sedan
56 Kabriolet

[Busstom]

Note to self: Another word for valve stem is "spray inducer thing," or, more simply, "this piece."

[BarryL]

I'm confused as the video says to make sure the can is completely empty but then it sprays PB Blaster.

[NUTSFORBUSES]

[52 split]

what he meant was, no propellent in the can, but that it still had a liquid, be it pb blaster or paint.

[Busstom]

The whole premise is shaky. In 45 years of using a myriad of spray-can products, I don't think I've ever had the propellant run out before the product. I've had clogged tips, and frozen valves, but I highly doubt the gas propellant leaked out. But I've run out of paint or other product but still had gas spraying out of the nozzle.

I submit that what Erb unknowingly did was used air going in the opposite direction to dislodge hardened product or unstick a stuck valve to render the canister usable again. The size and nature of spray cans/products are such that compressed air is the least practical and last gas you would ever use for such purposes. The propellants used are carefully chosen and formulated to work in conjunction with (and usually mixed with) the chosen product to be dispensed and, air is never one of them.

Just my $0.10

[finster]

I'm sure I had a refillable aerosol can with a tyre valve near the top...was a load of rubbish so it got chucked.
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"we're here on Earth to fart around" kurt vonnegut

nothing lasts, nothing is finished, and nothing is perfect...

[LAGrunthaner]

I wish the nozzles/actuators were available at local stores. Or someone would post how to clean them.
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[NUTSFORBUSES]

Cleaning nozzles: I've used just acetone then air. I have shot starter fluid too.

Busstom is correct. It's not compressed air, it is aerosols of different types for different types of paint. I know a company that fills many of these various cans. Tough business (in California at least) they are always under scrutiny by the air board w constant risk of being shut down.
If air is used, a layer of paint would dry-out, you shake it and it would clog, so the paint (up to an expiration date) stays liquid and active. PB blaster cans often run out of steam and seem to be under low pressure. I just give a smack and dent the can. My Go-To is unpressurized Liquid Wrench-less mess/waste and good stuff. PB stinks, not in performance, it stinks
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[FarmerBill]

To quickly clean out a spray paint nozzle, just flip the can upside down and spray for a couple of seconds until the tube and nozzle are clear of paint. You have to do this immediately after use though, it won't help with an already clogged nozzle.

The only cans I have that run out of propellant before product are the Off insect repellent cans I get these days. I just poke a hole in them and drain the rest into a pump spray bottle.

[cru62]

[aa390392]

Geniuses your all geniuses.. .
Though I like the last suggestion..
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.
getting grumpy & less tolerant!


55 ragtop
56 delux sedan
56 Kabriolet

[Erik G]

It is not lost on me that this mode of transportation we flock to is so loved and adored by both the richest and poorest, and also the cheapest (which has nothing to do with being rich or poor)

[vwuguy]

The video mainly is useful for after winter or cans that sat a long time example liquidation cans. I mean if you leave a spray can outside in the below freezing temperatures that 7 -8 months of the year here even though its warm in the day time the can inside freezes and then occasionally it won't work anymore. This is easy way to recharge it. You should only go to 40 psi max though. be warned could be dangerous.
I was thinking of maybe making a video on how to refill the old cans with new liquid do you want to see that..
Do you need a video on how to clean or where to get the nozzles?
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