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purplefan

Senior Aircraftman (Technician)
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Posts: 56
Reply with quote  #1 
I know there is a thread already about varnish but my problem is totally different.
I was just putting a coat of humbrol clear matt over my humbrol enamel paints and it has turned all misty; like all powdery looking. 
I know i must have done something wrong but i cant work out what it is.
I used a paint brush to brush the first coat, then i used an air brush for the other kit i am building and same thing.
What happened? 
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purplefan

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Reply with quote  #2 
I've been doing a bit of research into my problem and i might have found the problem.
I am not giving the varnish a good enough mix. I dont understand though as i normally shake about a Minuit and stir for about 2. On the Humbrol web sit it says to stir for 5 minutes. Thais a long time but i will give it a go and hope that it helps other beginners with the same problem. 
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purplefan

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Reply with quote  #3 
Also dont throw your model away if it turns out all frosty looking. It says on the Humbrol website to used some gloss varnish and this will re activate the agent. I guess you better mshake the gloss varnish well also. 
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TedUSA

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Reply with quote  #4 
I did not think I could help? but I wanted to see the answer that came up. I appreciate your followup to your own question. I wonder if it had anything to do with the enamel not being fully cured? or perhaps temp/humidity? I am clutching at straws? thanks. let us know how the redo goes please.
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purplefan

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Reply with quote  #5 
You might have a point Ted about the tempriture. It was quite warm last night as I had my heating on. I tried it again today on a old kit I use to practice on. Will let you know what happens.
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TedUSA

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Reply with quote  #6 
thank you. these kinds of problems occur to many modelers. seems that its not always the same answer as to the cause.
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http://www.pinterest.com/intrstinpintrst/awesome-scale-models/


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Laurie

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Reply with quote  #7 
First port of call is the manufacturer. They are the most lilkely to know the problems associated with their products.

As an alternative in the future try Humbrol Clear Varnish. I have used this a number of times and have had first class
results airbrushing the product. To obtain the depth of gloss just add another coat. Dries quickly.

I use it before applying decals and it works better than any other product for this purpose.

Laurie


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Laurie
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purplefan

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Reply with quote  #8 
Hi Laurie.
Many thanks for your reply. I am still having the problem of my sting when I use varnish. I have used the clear varnish on my models before and found them to be OK.
I was wondering if you had a similar problem while using clear? I am wondering if it is possible I am spraying too close.
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TedUSA

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Reply with quote  #9 
so humbrol matt is a varnish? OK. there are three main reasons that varnish takes on a whitish mist when applied. here is a video about the problem and how to "fix" it from a modeler who has had the problem. may not help but......? Once again, I am a paint science neophyte.



Per your last comment in the thread here, Perhaps spraying too close is overloading the model finish with the varnish?


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pinterest pg. of scale models/dioramas:
http://www.pinterest.com/intrstinpintrst/awesome-scale-models/


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Gr4h4m

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Reply with quote  #10 
Moisture is nearly always the culprit
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