Re: Spray paint help

[Doug Kanter]

<ci...@treadles.ca> wrote in message
news:r3rqk1h57o0gt4dpe...@4ax.com...
> I've been doing a lot of spray painting lately - from tins of spray
> paint, not from a compressor, and have been having problems with
> wrinkling. I've used a primer coat and the same brand of spray paint
> as the primer too.
>
> About 50% of the time a second or third coat will cause everything to
> sort of alligator except that instead of shrinking, the paint expands
> and creates alligatoring in reverse with raised ridges.
>
> Anyone know what causes this and how to avoid it in future?
>
> Helen

What are you painting? What temperature? Humidity? Is whatever you're
painting in a place where it might be forced to dry too quickly, like in the
sun? Are you putting on very light coats?

[Joseph Meehan]

ci...@treadles.ca wrote:
> I've been doing a lot of spray painting lately - from tins of spray
> paint, not from a compressor, and have been having problems with
> wrinkling. I've used a primer coat and the same brand of spray paint
> as the primer too.
>
> About 50% of the time a second or third coat will cause everything to
> sort of alligator except that instead of shrinking, the paint expands
> and creates alligatoring in reverse with raised ridges.
>
> Anyone know what causes this and how to avoid it in future?
>
> Helen

Too thick a coat or too many coats with insufficient drying time
between.

--
Joseph Meehan

Dia duit

[ds...@webtv.net]

i have had that happen when i put oil base paint on latex
primer. the weather was cold to. lucas

http://www.minibite.com/america/malone.htm

[Edwin Pawlowski]

"Joseph Meehan" <sligojo...@hotmail.com> wrote in message

> Too thick a coat or too many coats with insufficient drying time
> between.

Either insufficient or too much drying time. Some paints state to re-coat
within one or two hours, or after 24 hours. The in between can cause
problems.

[Joseph Meehan]

True. Being the impatient type, I think in terms of too soon. :-)

[Doug Kanter]

<ci...@treadles.ca> wrote in message
news:e4sqk1da8u19ieb7k...@4ax.com...

>
>>What are you painting? What temperature? Humidity? Is whatever you're
>>painting in a place where it might be forced to dry too quickly, like in
>>the
>>sun? Are you putting on very light coats?
>

> I was painting bare metal, or metal with a primer. Fairly dry humidity
> but have a friend who has had the same problem in the summer so
> humidity doesn't seem to be a factor. Painting was done in a basement
> or garage, not in the sun. and yes, I was using very light coats,
> otherwise it runs and causes drips.
>>

What brand of primer & paint? What was the temperature when it was applied,
and while it was drying?

[Doug Kanter]

<ci...@treadles.ca> wrote in message
news:2j3tk11rv09pjlee6...@4ax.com...

>
>>What brand of primer & paint? What was the temperature when it was
>>applied,
>>and while it was drying?
>

> I've used both Tremclad and Painter's Touch made by Rust-Oleum with
> their corresponding primers but have deliberately never used a
> combination of both brands on the same item. Temps were 55-60 degrees
> which does seem a bit low but instructions on the tins said that was
> okay. Same temps for application and drying with a fairly dry
> atmosphere.
>
> To all who very kindly responded, The Painter's Touch paint says
> "Recoat before one hour or after 24 hours". Which time spread would be
> better in order to avoid wrinkling or would it make any difference?

Longer, especially at lower temps. By the way, I assume you're shaking the
cans VERY thoroughly, right?

[Doug Kanter]

<ci...@treadles.ca> wrote in message
news:9rktk11e0s6uhm9h3...@4ax.com...

>
>>Longer, especially at lower temps. By the way, I assume you're shaking the
>>cans VERY thoroughly, right?
>

> After the second episode of paint wrinkling, yes. (-:
>

Hmm. The plot thickens. Let me see if I've got this straight. You didn't
shake the can for the first coat or two or whatever. The paint behaved
badly. Then, you shook the can and did another coat on top of the earlier
ones?

If this is the case, I'd strip off all the paint and start over. Discard the
unused paint (properly) and buy new stuff.

[Jim Yanik]

"Doug Kanter" <ancien...@hotmail.com> wrote in
news:_BA3f.9769$cg....@news02.roc.ny:

Some spray paints do not like to be put over other brands of paint,and will
wrinkle.You have to test for compatibility on a scrap piece.

--
Jim Yanik
jyanik
at
kua.net

[m Ransley]

A guess is you are not using the right primer paint combo or doing
improperly, you have a chemical incompatibility such as a high solvent
paint. A long dry time likely would be best. Dry times are usualy rated
at 70f, 55 is pushing it for many modern paint formulas in spray , the
low temps increase cure time and the primer has not cured out and
sealed, the finish coat is eating into the primer. Call the Mnfg and be
sure you are following all instructions.

[keith]

I've had the same problem. It's taken me forever to paint a few (four
sections) of baseboard units. I've finally gotten the big pieces pretty
well done (ugly, but passable) but the end caps and such went nuts. I was
trying to use rustolium (sp?) appliance paint, but Ive now given up (too
cold and rainy - gott get done) and will sand it all off and brush it on.
What a PITA! :-(

--
Keith