Our company started using ML Campbell's Turino product this last year. At first it seemed like a great product but a few months ago we started having problems with it wrinkling up when we scuf a first coat and lay down a second coat. It doesn't happen to every piece, just seemingly random spots on random pieces. We've don't a lot of trial and error and I'm pretty sure it doesn't have anything to do with dry times or too many mils. Anyone else experienced this?

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Spray booth and makeup air temperature? Contamination on the sheet goods?

It happens to me, also. In my case, it's often on top of Level Primer, and Level Sealer. Over White Vinyl Primer, not as much. My catalytization is exact. It might be, in my case too much reducer. I reduce 10% - 20%, either with Standard Lacquer Thinner or with Care Reducer. I lay down a 4 - 5 wet mil application.

Conversion varnish can be whacky and unpredictable when you least need it.

My fix isn't 100%, either. I sand out the wrinkles and apply light coats of vinyl sealer, and/or very light coats of more Turino, creating a barrier coat on top of which, hopefully, I can lay down a finish coat of Turino that will behave.

Dealing with this cuts into the allotted time, a budget burner.

Stealth has different issues and Turino is wayyy more friendly, especially with it's 24 hour potlife. For me, Resistant sprays like potted glue, and no thanks.

By the way, I'm talking about Turino white opaque base not Turino clear base. We avoid using the clear base. The stuff takes wayyy too long to stack, days!

I've never used Turino so I can't really help you there. I use Stealth and have never had any real issues with it.

My only problem was with MagnKlear. Same thing you are having now. Unknown wrinkling. As far as I was concerned they changed the formula. It started happening after they changed the precat time from 120 days to 60 days. After that I started having wrinkling issues. It was random. It could happen on one board and then next would be fine. Never figured it out and switched to Krystal and haven't looked back.

Not much help. I gave up and went to a different product.

when i zoom in you have more than lifting going on.

Don't fight it. Call MLC and get a Tech Rep out to your place. If they can't work out the problems then change to something that works.

If you pop one of those bubbles does water come out. If so, that's the problem.

Is this on mdf? Solid wood?
What grit are you sanding with on the raw? Could be the case if you are using a higher grit initially and polishing the wood.. or possible contamination glue/putty residue on the raw wood that was missed during sanding. Doubt it’s any of that but possibilities.

It looks to me that the finish is over reduced. There is blotchy mixture of sheens on there. Are the areas of wrinkle where you may have passed over more times in the spray pattern? Thinned out and too much build equals partially reactivated previous coat.

I used, MLC High Performance Clear, on my last project and had wrinkling also, first time ever, it was from a fresh 5 galloon pail. I also normally use Krystal, but I need a flat finish. Best as I can tell, it just separated from the Stain and blistered. This was on 58,000 thousand dollars of solid Oak, woodwork. I scared now.

I did, pop the bubbles and it was air or gas. To me it looked like it flash dried and trapped gas underneath. It did it on the first piece and the last piece. I thought it was some mistake on my part but now I am beginning to wander after reading this post.

First off, Turino is a conversion varnish. Not a lacquer. So why is someone using lacquer thinner to reduce this product? The MEK in the thinner is too hot for a conversion varnish going over another catalyzed product. The reason you put lacquer thinner (or MEK) in a lacquer product is each coat applied basically dissolves the previous making it bond. You don't want that in a conversion type product. The adhesion is from the sanding. The problem as I see is the MEK is lifting the previous coat because it's too hot a solvent.

After an hour thinner barely touches conversion varnish.

But I am interested in hearing if this was solved or not.

Yep, I agree. The 'thinner barely' got into the previous coat from the sand scratch but that's all it takes......