Fill in the blank

  • Thread starter Senile Old Fart
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Senile Old Fart

Fill in the blank .

The paint failure in the photo is an example of ________________ .


quiz pic 1.jpg
 
LOL, that pocket of blasting abrasive that hides in crevices till you start painting.
 
haha bob beat me to it. looks like non skid particles were added to it but since its obvious you didnt do that then its most certainly blasting grit or something
 
If not sand the other thing it could be is acid etch primer and or lacquer primer over bare metal, I have seen acid etch this bad but never have seen lacquer primer that bad, take a razor to one of the bubbles and shave the top and if you see rusted water, then its acid etch primer.
 
It is a failure, not something added to the paint like sand or walnut shell or such.

Something went amiss with the chemistry or application technique .
 
Senile Old Fart;32936 said:
It is a failure, not something added to the paint like sand or walnut shell or such.

Something went amiss with the chemistry or application technique .
Click to expand...

That makes it easier, how long did it take to show up and in what coat of the application.
Would also make it easier if we knew type of paint.
 
I believe it to be a 2 part urethane but I cannot say for sure as I didn't shoot it.
 
I had a friend give me some old Dupont SS Urethane to touch up his Packard with and it looked just about like that straight out of the gun. The Paint had turned gritty in the can.

John
 
John Long;32952 said:
I had a friend give me some old Dupont SS Urethane to touch up his Packard with and it looked just about like that straight out of the gun. The Paint had turned gritty in the can.

John
Click to expand...

That was going to be my next statement depending on type of paint, urethane's the "pigment kicked out", either from freezing (44 degrees) or if enamel bad activator.

However, turns out that is not the answer according to the paint company.
 
John Long;32952 said:
I had a friend give me some old Dupont SS Urethane to touch up his Packard with and it looked just about like that straight out of the gun. The Paint had turned gritty in the can.

John
Click to expand...

That was going to be my next statement depending on type of paint, urethane's the "pigment kicked out", either from freezing (44 degrees) or if enamel bad activator.

However, turns out that is not the answer according to the paint company.
 
i've experienced frozen paint many times . one winter our shop was 9 degrees when i came in. we ended up replacing the mixing bank and cases of clear . we had a variety of problems so we just started over . i get a kick out of the internet experts who claim paint will not freeze. it may not turn to ice but it will damn sure change up on you .
 
According to Spies-Hecker that picture is of solvent pop, I can't imagine how they got it that severe.

source:Page 22

I really enjoyed their recommendation:

Remedy
Sand the affected areas lightly with a sanding pad and
respray within 24 hours.
Do not sand pop marks open.
 
"Do not sand pop marks open"

Remedy
Sand the affected areas lightly with a sanding pad and
respray within 24 hours.
Do not sand pop marks open.

Your kidding, right?

- - - Updated - - -

"Do not sand pop marks open"

Remedy
Sand the affected areas lightly with a sanding pad and
respray within 24 hours.
Do not sand pop marks open.

Your kidding, right?
 
GJSZ51;32980 said:
"Do not sand pop marks open"

Remedy
Sand the affected areas lightly with a sanding pad and
respray within 24 hours.
Do not sand pop marks open.

Your kidding, right?

- - - Updated - - -

"Do not sand pop marks open"

Remedy
Sand the affected areas lightly with a sanding pad and
respray within 24 hours.
Do not sand pop marks open.

Your kidding, right?
Click to expand...

In forty years, I have NEVER seen solvent pop look like that, I say BS. I have seen acid etch that big because it causes a gassing with the solvent and air underneath and it shows when the metal starts to rust.
Solvent pop that big would have turned into massive baby fish-eyes as it was being painted or within a couple of days after.
 
Yes sir. That is a chemical reaction. Even moisture would not have that uniformity. Why would any manufactuter suggest you could leave any of that under additional coats. Even "tie coat" primers won't prevent that from peeling.
 
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