PPG Vibrance Midcoat VWM5555
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Have any of you ever used this product I need some feedback
I’ve had several solvent popping problems falling [u]well[/u] within the parameters of the tech sheet.
think its just a clear base like dbc500. just use something diff that works
i dont really know much about it but isn’t it a barrier coat that goes over waterborne base so you can put solvent over it? i have read up on the stuff but thats what i get from everything i have read.
I’m sure with some waterborne basecoats that you can put solvent right over top just fine
It’s a clear mid coat for the vibrance candys and pearls. solvent base, but “compliant” to go over waterborne paints before it came out you had the D895 to make your mid coat (a product I’m told my supplier can no longer get me due to the VOC laws). I find this VWM5555 bleeds a lot easier then the d895 you can’t put anything thicker then a “medium wet” coat according to the tech sheet. It bleeds very easily despite appearing to have a pretty high viscosity. if you want to put more then 4 coats you have to let it air dry for 16 hours :blink:. I did 3 candy coats on the escalade roof wednesday night, cleared it and went home happy because it turned out really nice. Yesterday morning i came in to find the worst case of solvent pop I’ve ever had.
I can normally trace my problem back to myself (I ALWAYS assume i’m the problem before the product) and find a hole in my procedure but honestly this time after going back and looking at all my tech sheets everything I did seems solid. I fell within all flash times. the hardeners were even all within 2 days old so it’s unlikely they were bad. I sprayed the body last night and once i had the candy on I went home and now this morning I’m going to go in and clear it. I know that some of these specialty products are tricky and often finicky but 16 hours to air dry, and severe solvent pop when falling within tech sheets flash times and recommended coats?
Lastly, we sanded a little part of the roof with 800 and it appears that we will be able to reclear and alleviate the problem without having to go back to the start.
thoughts??I’m probably going to find a different product to make my midcoat i’ve used this one several times and never been impressed. I had to warrenty a bike tank with a similar solvent trapping issue as well.
[img]http://www.refinishnetwork.com/media/kunena/attachments/legacy/images/roof.jpg[/img] [img]http://www.refinishnetwork.com/media/kunena/attachments/legacy/images/roof2.jpg[/img] [img]http://www.refinishnetwork.com/media/kunena/attachments/legacy/images/roof3.jpg[/img]i really have no idea since i have never used the stuff but it sounds quirky since most candy jobs require more than 4 coats. the stuff is relatively new so i dont know how much feedback you are going to get on it. a couple weeks ago i googled it hoping to find people talking about it on forums but came up with nothing. i figured it would be more like a clear basecoat but from your pictures and saying it needs a cat, i guess its more like a clear.
Yeah struck me as odd that it took a hardener too, (it says on the can “Vibrance Midcoat”) :S That was one thing my rep hyped about it was it was bound to be a better midcoat because of that offering more adhesion. It might make sense in theory but I’ve never been one to put hardener in my base actually I was taught never to do that. Honestly that has to be where the problem is from. Some of the things on the tech sheet aren’t misleading but actually blatantly not true. This product is not dust free in an hour nor tack free in 2. [b]MAYBE[/b] dust free in 2 hours (doubt it). This morning when I came in at 6:30 am it was dry, but soft, after 12 hours of sitting :chair.
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