WD 40 question or discovery

GK1918

GK1918

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Im not sure if anyone has noticed this, but I cant count how many times these things dont want to spray
anymore. Im one to buy a few of anything and keep in stock. So probably 15 cans full, wont spray, so
I ice picked them and drained into clean peanut butter (clear plastic jars) and will use a paint brush for
whatever. The next day, and Im no chemist, it appears to be atleast 3/4" of looks like water at the
bottom. Just like the acetone and atf mix, the acetone sinks. Although WD40 is junk to me, maybe its
junk cause I clearly see it has to be shook up. Im not sure if it is water or a product of its accelerate
so all I can say, if you are a user, shake it up.
 
That's weird. We use WD by the bulk at work and usually pour them into a generic 32oz cleaner style clear bottle to use. I just grabbed one last night to scotchbrite a drill grinder chuck with. It was pure WD top to bottom. Maybe it has a short shelf life?
 
Much easier to buy it by the gallon for $16.25 at Home Depot. There are no accelerators in it. Transfer from the gallon container to a spray bottle. I use it a lot for final cuts in Al ingots I cast in my furnace.
 
I have the same problem w/not spraying,like there's not enought air in the can.I have three cans laying around having the same problem.I think on my next visit I will buy a 1gal of WD and a spray bottle.Far as the junk at the bottom,I don't know.Feel your pain---kroll
 
Forget the aerosol cans.
go bulk, get the (usually free) hand atomizer with the 4lt container. Stop paying for gas and small qty's

Cheers Phil
 
Funny thing about WD-40 and there's a lot of folklore surround it. I used to absolutely hate the stuff until I found out it works for everything I expect it to.

Until this day, the exact ingredients of WD 40 are a trade secret and the mixture itself was never patented for privacy reasons. It's been reverse engineered by chemical and spectrograph techniques and the results are published similar to what an MSDS looks like.

It's basically a mix of 10W oil (mineral oil total 40%), kerosene 40%, 5% is a chemical used as the propellant and I don't recall the remaining 15% but think it was along the lines of naptha and other similar .

FWIW: I buy it by the gallon and if I run low, mix a small amount of kerosene and auto-trans fluid until it's the same consistency.

Yes, both of them separate when sitting for a while.


Ray
 
Yes I know Ray, these spray cans are not even 6mo old. And I have bought in gals. but just being
curious and passing the info along, this happened over night. Since I have shook up my jar and the
whole thing turns cloudy, as far a the spray bottle, I just never noticed cause the bottles are opaque
and my jar is clear to you really notice it. sam oh well
 
Sucks that you got stuck with 15 cans with bad propellant! I'd be P-O'd....


GK1918 said:
Yes I know Ray, these spray cans are not even 6mo old. And I have bought in gals. but just being
curious and passing the info along, this happened over night. Since I have shook up my jar and the
whole thing turns cloudy, as far a the spray bottle, I just never noticed cause the bottles are opaque
and my jar is clear to you really notice it. sam oh well
Click to expand...
 
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