http://www.fender.com/community/forums/viewtopic.php?p=221138#221138

Nick

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No no and no

Goddit!

- C

BUMP!! [Tuesday 24th...]

If any of the finishers who chipped in on this one a few days ago feels like looking at that thread (above) again, I'd be interested to see what you think now.

And if anyone sees redmax61 around, would you give him a heads-up, please? (Chet?) After all, I owe him for that excellent wiring diagram...

Cheers - C

EDITED for clarity...

I think he's not continuing with spraying the bass.

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No no and no

No, I know. Just curious if we can suss out the problem. Been experimenting, and I think I've found a way to replicated paint "wrinkling". But whether it's how redmax61's issue occured - well, that remains to be seen...

Cheers - C

Ceri, can you continue that over here, in this thread, I am curious about your findings, in this thread we can discuss what you found without derailing that one, in case he ever revisits it. I was intrigued by your picture, that's exactly the kind of thing I want to avoid!!

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I'm not an expert, but I play one on the internet.

Oh, OK.

I actually dreamed a possibility about redmax61's lacquer last night. Honestly: woke up at three in the morning with an idea running round my head.

Without getting into it, my father has spent his working life around the art conservation world and knows some stuff about how paint behaves, so come the morning I rang him and talked it through. Then I did a couple of test pieces on scrap wood...

Here's one of 'em:


I did one primer coat and then three coats of blue, all nitro. All of those coats save the last I did in the approved manner.

The last I sprayed on very thick, so's it made a nice wet puddle. Before my eyes the surface started puckering up and within minutes produced those nasty wrinkles, as you see. Seems a lot like redmax61 was describing, I thought?

What's happening (according to the esteemed parent) is that solvent is shed fast from the surface, but the paint is so thick it dries at different rates as you go down through its depth. That causes tension to build up across the surface.

Because that last layer was so thick it means the drying top layer is sitting on top of paint that is still liquid - like a skin on a milk pudding or whatever. The liquid underneath means the skin forming above it can move, so the contraction tension in the skin causes it to wrinkle up.

Happens in badly made art work, it seems.

Whatchathink: could simply be that redmax61 was spraying his paint on too thick perhaps?

Cheers - C

Makes sence to me. It can happen if you over spray a car on the roof or hood where it can't show as a run.

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.

Thomas Jefferson

Ceri, so you sanded between this first few coats but just sprayed and let the last settle?

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.

Thomas Jefferson

What I'm itching to hear is whether redmax61 thinks that looks like the problem he was having...

Cheers - C

Nah - this was just a quick test sample, done in the course of the day. Shot the primer and first two color coats nice and thin, giving each an hour or two to dry. Didn't worry about sanding - it ain't for show.

The point was to build a base of dry (-ish) paint to shoot that last very thick layer on top of, so as to see how that one would behave.

It's that wrinkly gravy skin effect we were trying to achieve - and did!

Cheers - C

I dunno the blokes history is very notable. Wayne Charvel being an employer to say the least. I thought he'd know how to not go too thick if a dummy like me can grasp it. Still as Ceri has proved the daftest mistakes can happen to the best of us.

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No no and no

The paint coat under the final heavy coat is curing causing the skin of the heavy top coat stuff to wrinkle up and not adhere to the surface that and its to thick to cure right itself. Good pic ceri My friend.

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.

Thomas Jefferson

Yeah, that's the bit that calls it into doubt, isn't it? Judging by other stuff we've seen and heard redmax61 definitely ain't new on this particular block. I'd hate to be thought to be trying to "teach my grandmother to suck eggs" (hope that saying crosses the Atlantic...?).

Still. Something made his paint wrinkle...

Cheers - C

Thats why I like my home budget airgun, you can realy controll the paint spray. Just the cleaning is a pain compared to a spray. can.

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.

Thomas Jefferson