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![[Post New]](/s/i/i.gif) 2014/02/04 03:07:06
Subject: An interesting comment about clear coat frosting...
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Longtime Dakkanaut
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I was having a conversation about matte sealer, and the dreaded "frosting". I have never had this problem, but I wanted to see what the response would be. So to settle the dispute I contacted Krylon and Testors. Testors has gotten back to me, Krylon has not, here is what the message was to both parties;
Hello, Recently I used your "matte varnish" product and the result was a surface that appeared cloudy or frosty in appearance. Could this be a defective product? What causes this to happen? Thanks.
Here is the response from Testors
Hello Ashton,
The most common reason for the frosting is that the can was not shaken sufficiently before application. You can remove the dullcoat with Isopropyl alcohol on a cotton ball or soft cloth and gently rub down the model.
Best Regards,
The Testor Corporation
Product Support Group
1-800-837-8677 (1-800-testors)
M-F 8:00 A.M - 4:00 PM CST
Interesting response and solution. I will post Krylon's answer when it comes.
A.
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![[Post New]](/s/i/i.gif) 2014/02/04 03:22:14
Subject: An interesting comment about clear coat frosting...
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Colonel
This Is Where the Fish Lives
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It's easier just to give the model a coat of gloss varnish to remove the frosting. Matte varnish from a spray can is notoriously finicky so be mindful of the climate you use it in and spray distance.
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d-usa wrote:"When the Internet sends its people, they're not sending their best. They're not sending you. They're not sending you. They're sending posters that have lots of problems, and they're bringing those problems with us. They're bringing strawmen. They're bringing spam. They're trolls. And some, I assume, are good people." |
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![[Post New]](/s/i/i.gif) 2014/02/04 03:25:30
Subject: An interesting comment about clear coat frosting...
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Longtime Dakkanaut
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ScootyPuffJunior wrote:Matte varnish from a spray can is notoriously finicky so be mindful of the climate you use it in and spray distance.
I would disagree with you. 20 years of using these types of products and seeing them used by others in the know, and I have never seen this issue. In fact when I first saw it on these forums I had no idea what anyone was talking about and I did not believe it until someone posted a pic of it. In the end I do not think it is the product, I think it is the user.
A.
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![[Post New]](/s/i/i.gif) 2014/02/04 03:59:48
Subject: An interesting comment about clear coat frosting...
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Colonel
This Is Where the Fish Lives
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Redfinger wrote: ScootyPuffJunior wrote:Matte varnish from a spray can is notoriously finicky so be mindful of the climate you use it in and spray distance. I would disagree with you. 20 years of using these types of products and seeing them used by others in the know, and I have never seen this issue. In fact when I first saw it on these forums I had no idea what anyone was talking about and I did not believe it until someone posted a pic of it. In the end I do not think it is the product, I think it is the user. A.
Yes, the product is fine and it is the user that is causing the problems, that doesn't change the fact that spray varnishes can be finicky if the proper precautions are not met. Technique (not shaking vigorously enough and spray distance) and climate (temperature and humidity) are important to consider when using a spray varnish (or primer). Matte varnish frosting is not a new phenomenon and can happen to experienced painters. Here is an article on Dakka about it (written by someone "in the know"): http://www.dakkadakka.com/wiki/en/How_to_recover_from_a_Spray_Sealer_disaster
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This message was edited 1 time. Last update was at 2014/02/04 04:00:13
d-usa wrote:"When the Internet sends its people, they're not sending their best. They're not sending you. They're not sending you. They're sending posters that have lots of problems, and they're bringing those problems with us. They're bringing strawmen. They're bringing spam. They're trolls. And some, I assume, are good people." |
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![[Post New]](/s/i/i.gif) 2014/02/04 04:02:42
Subject: An interesting comment about clear coat frosting...
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Mighty Chosen Warrior of Chaos
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Hi mate, I have noticed this happening to me recently. I think it's from not shaking the hell out of it. I use mine threw my airbrush aswell. Thinned with water. No issues at all unless I don't shake them for a good 1min.
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![[Post New]](/s/i/i.gif) 2014/02/04 06:22:33
Subject: An interesting comment about clear coat frosting...
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Sneaky Lictor
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In a decade of using Testors Dullcote, frosting has only happened to me twice.
First time, my bad. I didn't shake the can before spraying. A re-spray clear it up right quick.
The second time, the re-spray method didn't work, and I contacted Testors. They were able to replicate the frosting in their labs (they asked for a batch number), so it was definitely a naff batch.
They sent me a few things as a "we're sorry" note.
Awesome company. They have locked me in as a buyer for the years to come.
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This message was edited 2 times. Last update was at 2014/02/04 06:23:24
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![[Post New]](/s/i/i.gif) 2014/02/04 07:56:16
Subject: Re:An interesting comment about clear coat frosting...
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Savage Khorne Berserker Biker
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I found this problem a long time ago out of cans 15+ yrs ago. I stopped using can varnish for that reason. With the Vallejo Matte Varnish / I even use Future Floor Varnish before the matte for a good seal but, it leaves a gloss. I have a bit more control of how much I am using/ thinning etc. I rather spray it through a Air Brush. IMO.
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This message was edited 1 time. Last update was at 2014/02/04 07:57:16
https://www.youtube.com/watch?v=8xqOf-KjdVY
My Hobby Blog:
http://www.dakkadakka.com/dakkaforum/posts/list/594118.page
http://i.imgur.com/yLl7xmu.gif |
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![[Post New]](/s/i/i.gif) 2014/02/04 07:58:57
Subject: An interesting comment about clear coat frosting...
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Sneaky Lictor
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Just a quick question, Sammoth - spraying your Vallejo Matt Varnish through an airbrush, is it necessary to dilute it? Can it be sprayed neat through the airbrush?
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![[Post New]](/s/i/i.gif) 2014/02/04 08:02:31
Subject: Re:An interesting comment about clear coat frosting...
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Savage Khorne Berserker Biker
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You don't have to but, I choose to. It's easier for me to clean up the airbrush. However, IMO I would recommend trying to dilute it just enough to get a milky look to it. 50/50 ratio is my mix. Also since it's such a small bottle it save some on it. Hence why I use the Future for my initial seals.
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This message was edited 4 times. Last update was at 2014/02/04 15:23:10
https://www.youtube.com/watch?v=8xqOf-KjdVY
My Hobby Blog:
http://www.dakkadakka.com/dakkaforum/posts/list/594118.page
http://i.imgur.com/yLl7xmu.gif |
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![[Post New]](/s/i/i.gif) 2014/02/04 11:32:52
Subject: An interesting comment about clear coat frosting...
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Sneaky Lictor
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Makes sense. Thanks, mate.
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![[Post New]](/s/i/i.gif) 2014/02/04 13:50:32
Subject: An interesting comment about clear coat frosting...
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Boosting Ultramarine Biker
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Just to add my observations, the only product I have ever experienced this with is Putridy Seal. In decades of using Testor's Dull Cote and occasionally Gloss Cote, I've never had an issue. I agree it's user/environment related, but some products are more forgiving i.e., superior, to others. Testors has my business for life.
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