Lead Adventure Forum
Other Stuff => Workbench => Topic started by: dijit on 16 March 2014, 02:34:05 PM
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My spray paint's nozzles seem to get clogged up very quickly. Is there by any chance a way of cleaning them, so the life time of the can can be extended?
Thanks,
Duncan
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OK, this is seriously weird, I was going to post the same question earlier today :o
Here are the suggestions I found:
1) Always shake very well (c. 2 minutes) before use
2) Try not to leave unused for too long (never manage that!)
3) Detach the nozzle, and use a pin or fine wire to try to remove debris or dried paint
4) Spray with the can inverted to try to de-clog (works sometimes)
5) Best of all - when a spray can finishes, keep the nozzle to use as a potential future replacements - best tip of all! I also learnt there are male and female nozzles, which are not compatible, and different nozzle types providing different spray actions.
6) Dip in solvent - did not try this; it definitely has to be a solvent which does not attack the plastic parts of the nozzle, though!
In my case I had a nearly-empty can, and took its nozzle; the funny thing is the erstwhile-clogged nozzle then worked on the nearly-empty tin. A rare win-win instance....
P.S. I managed to find the site with nozzle types, could be useful:
http://artprimo.com/catalog/art_primo_caps-101 (http://artprimo.com/catalog/art_primo_caps-101)
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I used to know serveral guys who were into graffiti... >__>
... uh anyway, you can buy replacement nozzles from art stores.
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I bought some graffiti nozzles and they were excellent but.... I thought I'd be clever and rather than bothering with upside down spraying to try and clear the nozzle, I
just took them straight off and dropped it in white spirit. I haven't done much spraying for a while (at least a couple of months) and every one of the nozzles I pull out
and put on a can has had the inner 'spray' part pop loudly out followed by a big gush of paint :( luckily while test-spraying rather than all over figures! I've binned the
lot of them and will just go back to turning the can upside down when I finish and spraying the nozze clear(ish).
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back in the day I used to invert the can and spray after use untill only solvent comes out, this prevents the nozzle getting clogged in the first place.
I've not had problems with clogging nozzles so nowadays I don't bother but if you're having problems that might help
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I save not only the nozzles from old paint cans, but also from ANY spray can my wife wants to throw out. I have a small box with them in & just take out a suitable one when I have a problem.
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It really depends.
If you get clogging in the tube that comes from the can, it's pretty much unsalvageable. Don't try to clear it with a needle or anything -- my craft teacher lost an eye doing that many moons ago.
If the problem is the nozzle, it's easiest to replace it if possible. Save nozzles from old cans, you can use them for sci-fi turrets or something later on anyway.
I have some newer cans that don't have a detachable nozzle. With the I've found it sometimes helps if I rotate the nozzle in place.
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It really depends.
If you get clogging in the tube that comes from the can, it's pretty much unsalvageable. Don't try to clear it with a needle or anything -- my craft teacher lost an eye doing that many moons ago.
If the problem is the nozzle, it's easiest to replace it if possible. Save nozzles from old cans, you can use them for sci-fi turrets or something later on anyway.
I have some newer cans that don't have a detachable nozzle. With the I've found it sometimes helps if I rotate the nozzle in place.
Good point re the needle - that should only be done with the nozzle removed from the can.
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back in the day I used to invert the can and spray after use untill only solvent comes out, this prevents the nozzle getting clogged in the first place.
This has always worked for me. I can't remember ever having a clogged nozzle.
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Good point re the needle - that should only be done with the nozzle removed from the can.
Good point re the needle - that should only be done with the nozzle removed from the can.
I think he was referring to using the needle on the clogged up can and not the nozzle(?). :).
Darrell.
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My experience is that if the tube in the can gets blocked, you chuck it away. Nothing I've ever done has fixed it.
It's why I've stopped buying Army Painter varnish sprays, because I only ever got about 2/3 through before it blocked up, no matter what I did to prevent it.
I now use Testors, which fingers crossed has never blocked and gives a great finish.
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My experience is that if the tube in the can gets blocked, you chuck it away. Nothing I've ever done has fixed it.
It's why I've stopped buying Army Painter varnish sprays, because I only ever got about 2/3 through before it blocked up, no matter what I did to prevent it.
It wasn't Army Painter cans that I had all the jams in the can..... the company shall remain nameless though I suspect that they have the same manufacturer(???).
I now use Testors, which fingers crossed has never blocked and gives a great finish.
I find that the new formula Testors leaves a slight sheen that I simply never got with the more carcinogenic older versions!! :o :D
Darrell.
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I find that the new formula Testors leaves a slight sheen that I simply never got with the more carcinogenic older versions!! :o :D
I'm impatient, so I dry the varnish with my little fan heater after spraying. It seems to also leave a slightly more matt finish when done ... but that might be my imagination.
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I think he was referring to using the needle on the clogged up can and not the nozzle(?). :).
Darrell.
Owwww! Not a good idea.
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Owwww! Not a good idea.
Indeed! :)
Darrell.
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Was this already 10 weeks ago?
Anyway - I found a solution. My wife had a bottle of acetone-free nail polish remover which she didn't find particularly good in its intended function. I left a couple of old tops in the stuff for a couple of hours and the paint softened and was easily removed using a needle - note that this was inserted in the tops when detached from the can!
I replaced a couple of blocked can tops with the cleaned ones and they worked. :D
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Was this already 10 weeks ago?
Anyway - I found a solution. My wife had a bottle of acetone-free nail polish remover which she didn't find particularly good in its intended function. I left a couple of old tops in the stuff for a couple of hours and the paint softened and was easily removed using a needle - note that this was inserted in the tops when detached from the can!
I replaced a couple of blocked can tops with the cleaned ones and they worked. :D
Hurrah! :D
Darrell.
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It's a valuable life lesson to always keep your tip clean!
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It's a valuable life lesson to always keep your tip clean!
lol
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Threadomancy!
Not just the tip but also the can....
So in spite of the tip I had given, I was still having problems, sometimes even with new cans. Storing them inverted (nozzle end down) helps a lot, especially with some brands. I was messing around with an old, barely-used tin which would not spray, when I thought of something a bit last ditch - I shook the can very well, removed the nozzle, and sprayed some WD-40 down the tube from the spray can - OVER SOME SCRAP MAGAZINES as it can be VERY messy. I left the think upright for a minute or so, placed the nozzle back, and left it inverted for some time - about half an hour. I shook it well again, and after some false starts, it worked. I managed to spray a large area before it conked out again, and I had to repeat the process - it worked again.
A word of caution - too much WD-40 and the can will spray large droplets of paint.
In the process I also discovered WD-40 is a good paint remover. Fortunately, this did not affect the quality of the paint on the surface being sprayed.
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Buy all your rattle cans from one manufacturer. Nozzles do block but they have no memory. It's not the cheap solution but over time the blocked nozzle problem simply goes away by having spare nozzles hanging about the place.
BEST ADVICE: DUMP CANS, NEVER DUMP NOZZLES