spray paint can tip

I'm working on car rustouts with several sprays and have been removing the nozzles and dripping solvent through them with an eyedropper or lighter fluid can.

-jsw

I soak them in brake fluid then blow them clean.

I should try lighter fluid on the next round of gummed up nozzles. Pretty sure brake cleaner is cheaper when it's on sale at the auto parts place though.

Any idea what changed in the lps-3 stuff?

I grabbed a can of the CRC SP-400 corrosion inhibitor to play with. It smells so bad it's barely usable though. Not sure what the "perfume" in the LPS line is, but it's tolerable. LPS-1 even smells nice.

IIRC the MSDS for LPS-3 used to list an organic amine but no longer mentions any specific corrosion inhibitor, while 3M Cavity Wax does, as a Trade Secret.

Lighter fluid works for sprays that contain petroleum distillates. I began as a chemist and can tell from the label or the smell which type of solvent is appropriate. Google is refusing to return any help on distinguishing them.

-jsw

I've used lacquer thinner before, but will consider the brake fluid, too. I soak it overnight, then clean in the morning. To ease the loss of a few tips, I found a vendor on Ebay which sold lots of ten of each of 5 styles/sizes/tip shapes for a few bucks and bought some. This covers me for everything from lacquer to spray glue tips.

A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.

-Robert A. Heinlein