Paint Woes/But Rims OK

Because of the extreme dripping moisture inside my poly tractor shelter I've been leaving the front flap open for the past few days.

Well I went out this morning to give the hood a wipe with paper towels and to my dismay, there are tiny bubbles all over the grey paint. I'm pretty sure it is moisture under the paint.

So whoever did the sheet metal did an absolutely lousy prep job before painting.

Well at least my Valspar-painted rims are holding their own.
I had no plans to paint the tractors sheet metal any time soon but now . . .

Thanks.
Terry

paint lifting or fisheyed ?

The fisheye thing happens at the time the painting is done, doesn't it?

Well, my hood was perfect when I took it to town to have the paint color scanned, now it is covered in tiny raised blisters or bubbles like moisture got under the paint.

Thanks,
T

That could be orange peel, and might indicate a top coats solvent interacted with a base coat or primer. Also, non catylized paint under catylized paint can cause curing wrinkles with 2 different dry times. I would find it hard to believe it is bubbles of water... Had there been water on the metal when painting, it would have fisheyed.

Other possibilities are incorrect time window for paint over primer or 2nd coat over first, etc.

Pics would help

I sent my FUGI camera back east last week for repairs and the little Canon I have . . . well I can't find the right computer download cord but will keep looking.

Thanks,
T

I have seen such bubbles on my re-painted 8N also. I
believe that it is rust forming on the metal under
the paint. When Iron turns into Iron Oxide Fe O or
Fe2 O3 (rust), it increases in volume. That is what I
think is likely happening. To find out for sure,
take a sharp knife and gouge into the center one the
the blisters and see (why not, it is not going away).
Tell us what you found.

Likely the work of the 'Coast's most evil perpetrator - Hugh Madiddy. You is surrounded by H2O, is this a surprise ? Only answer is a heated shop-I have proof ! ;^)

Hugh got that right Bob!

I thought I was smart putting my tractor in a poly tent!
I'd go in every other day, always in the rain, and sponge mop the ceiling and the drips came down like rain inside.

Finally I realized that no cover on the tractor and the tent wide open was the only "temporary" fix.

I have a big heated shop but there's a 3 ton International and a '58 Austin in there right now so no room for the wildebeast.

I did bust a couple of the bubbles and got golden (light rust) moisture from one.
Blue paint underneath.
I'll get out my sherlock magnifying glass and have a better look tomorrow.

Definitely sticking the tractor in a humidifier, plus a terrible prep job by previous owners are two factors owing to the demise of my sheet metal.

thanks,
T

The primer did not adhere to the metal (for whatever reason) you will have to strip it and start over... If your are lucky it mite blow off...

Short course...

http://www.searchautoparts.com/abrn...techniques-how-approach-commonly-seen-defects

Orange peel is the finish look it has nuttin to do with the prep..
Fish eye,,, well,,, you will know it right off the bat you don't have to wait for it..

I am no expert but have preped and sprayed close to 100 cars... Its not my cup of tea it will kill ya... The last little job I did I went cheap and used the cheapest primer I could get my hands on... It lifted just like yours... I am sit'n on 3/4 of gal of good epoxy primer why I did not go epoxy I do not know its just one of my dipstick moments...

TT, I'm on the 'Sunshine Coast', where, oddly enough, it ain't always sunny. Getting tired of the grey we've been having, BUT, a warm (14C) and sunshiner today. HPH

(quoted from post at 20:09:14 01/26/15) TT, I'm on the 'Sunshine Coast', where, oddly enough, it ain't always sunny. Getting tired of the grey we've been having, BUT, a warm (14C) and sunshiner today. HPH

Click to expand...

Really! The Seachelt area!
Joni Mitchell still have a place around there?


Hobo,

Unless a million little bumps like my Jube suddenly got the measles, is what happens AFTER orange peel in a paint job, then O.K.

but the look of it now, like a bumpy rash, it's incredible really,
and it sucks
is not the look of orange peel in painting.

But fish eye . . . from that link you gave, something trapped beneath the paint. But everything looked perfect up top before two months intense moisture in that tent, so maybe it took the humidity to kick off kind of a dormant fish eye and puff it up.
It was fine for my November warm up.

It's like what you get when you cross an elephant with a rhino.
Hell-if-I-know.

When I was restoring my rims I got a touch of orange peel on one of my centers. No orange peel on my Hats though and 3 coats of Valspar.

I've been kicking myself too for not using epoxy primer on my rims. I didn't paint the tractor, by the way but it looks like I'm gonna get the chance to use epoxy primer.

Tanks,
T

found a camera cord
One under dash cowl blisters, as someone pointed out, has moisture of an orangy color indicating iron oxide in them.
The thousands of tiny bubbles in the other photo are all over the hood and engine cowl but they don't have discernable liquid in them.

That's not orange peel or fish eyes.

what that looks like to me is poor prep by whoever painted the tractor and now its lifting off- could be from rust.

In looking at your second pic, it looks like I can see spots of thicker and thinner paint- meaning they most likely did not completely strip down the old hood. just reaffirms the lousy prep thought

(quoted from post at 01:33:37 01/27/15)

Click to expand...

sorry to say it's rust T.
usual cause for widespread lifting bubbles:
somewhere in it's history,
it had no paint....just rust....common.
PO sanded it maybe...but didn't get the rust out/or neutralize the
hundreds of tiny pits in the metal.
Then he applied a cheap primer/paint with no sealer....maybe even on a damp day.....=future mess.

Don't worry about your shed, it's fine.
You could have been storing your tractor in your living room and the same thing would have happened....
If the surface isn't prepared right...the paint can't do it's job of sealing the metal from the elements.
(the pretty shine is just a side benefit)

only way to fix it is, it all has to come off....bummer

When painting and you see fish eye (looks like a fish eye with a small crater in the center) You can add a additive to the paint to eliminate it if you are lucky.. You can use the additive from the get go if you want to... Every major manufacture has a pre-cleaner I normally use sure-will-clean and wipe the primer down with a lint free rag... Then before I spray it use a tack cloth and go over the part to be painted...

Orange peel is the texture finish derived from the look of a orange peel it has nuttin to do with the paint popping up are blistering...

I will take a guess what you had on your rims are centers was a sag/run (to much paint)...

I am not a expert BTDT tho... Post this on the Restoration and Repair Tips forum there are a few that know there chit on that site...

I am surprised this does not come up more as I am guilty of poor prep using cheap paint also when doing a cheap quickly... I learned it all here tho like others get away with it most of the time..

No matter what you are I call it you have your work cut out for you... Remember painting with modern hardeners/ iso-cyanates will kill ya it got my Dad... Play safe...

T, that looks just like my '67 Datsun roadster. I took it down from the pallet rack where it has been since 2002, just a few weeks ago to get at it. I was driving it for two years and it never had these bubbles, but when I took it down there they were, all over it. I am going to paint it anyway, so I pricked a bunch of them and there is no liquid! The car had two repaints before I got it and the second was obviously much lower quality, much less prep, probably cheap materials. So it is apparently a lack of compatibility between the top coat and what is under it. it took some twent years for it to happen.

You seem to have exactly described the same probable painting scenario with this tractor as with your Datsun -- and there's nothing under the little blisters up top.

The photo I took (unfamiliar with this camera) is of a very small area; it makes it look like the bumps are bigger than they are and that there are less of them per sq. in. than there are.

But it is like a thick rash.

On the bright side, the beast started up yesterday as quickly and ran as smoothly as in the summer. Gave it a little workout warm up.

Thanks,
Terry

Hobo,

I think you're right that it was a "sag" from excessive paint on my center rather than orange peel.

The small sagging area can't be seen in the photo. As you can see, it sure wasn't worth worrying about anyway. Good enough
for government work, as a friend used to say.

Thanks,
T

Yep, I'm about 1.5 kliks from Joni's place. Haven't seen her for a while, still owns the place as far as I know.

Word has it that a few months before I moved here in 1970, that Joni was kicked out of the Kanaka restaurant in town cause her friends looked too much like hippies. When I moved here from Vancouver it was like going back ten years in time, like in Easy Rider where they get shot off their bikes.

My neighbor across the lake I was living on was Jerry Scheff, who was Elvis' exclusive bass player at the time. I visited him one day and was sitting in the kitchen when his Miniature Collie walked in and stood in the doorway. I thought jerry was outside but I heard his voice behind me say, "Moon, get in here . . . shame on you, shame on you, lie down." Moon stood there looking wrongly accused and looking over my shoulder and behind me. I looked around and it was Vivian's big parrot talking!!!

Vivian was Jerry's lady.
she had a shop in town called "Auntie viv's" where she sold classic women's clothing.

They separated in 1977 and word has it that Jerry grabbed his bass and jumped in his blazer and left.

A year later I picked up a rolling Stone magazine and there was Jerry playing bass on Dylan's 1978 album, "Street Legal".

Cheers,
T

Here a better pic of the botched paint job.



As an indicator of the moisture that brought the paint failure to light, here's a before (yesterday) and an after some drying of my ammeter today.





Thanks to all for all the help,
T