Foam cleaner can blocked?

[Olf]

Today I came across 2 cans of foam clener that do not want to squirt the magic potion: one No Nonsense bough last week, used once (and was ok!). Today I can feel it is full of goodnes and hear it slushing inside yet not coming out - not in the gun, not with the nozzle, nor when persuaded with a screw. Another one: posh Ilbruck AA290. The same symptoms Was used about a month ago, today no response.

What am I doing wrong?

Edited July 31, 2022 by Olf
typos

[Simplysimon]

gas leaked? it's just acetone

Edited July 31, 2022 by Simplysimon
adding constituent

[Olf]

1 minute ago, Simplysimon said:

gas leaked?

That would make sense, though if gas could leak, why not the solvent itself (both cans are heavy)

Is there a non-destructive way of checking that?

[Simplysimon]

turn can upside down and press nozzle with fingernails to allow cleaner out?

[Simplysimon]

i've had a couple of the illbruck and used on/off over a few months with no issue, to be fair haven't used a lot as illbuck foam doesn't seem to block nozzle as much as others.

[Conor]

I went through hundreds of cans of foam and half a dozen cleaners. Failure rate was at least 1 in 10. The B&Q no no sense we're the worst. Sent not several back, all loosing gas before use. After then I always gave the cans a good hard squeeze in the shop!