Model Boat Mayhem
Technical, Techniques, Hints, and Tips => Painting, Finishing and Care. => Topic started by: Norman Castle on February 01, 2016, 01:41:58 pm
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Sorry chaps - me again :embarrassed:
I have a ply hull which has been brush-painted with Humbrol enamels. Can I safely over-coat it with Tamiya acrylic after a light rubbing down?
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Quite simply No
I had exactly the same issue with my Tirpitz
You need to rub it back as best you can then coat with an isolator primer or you may get reactions
(http://www.hbbody.com.gr/images/products/SPRAY-ISOLATOR.png)
This is the stuff I used on my tirpitz
I'm sure there will be people who say it'll be fine, and it may well be. BUT do you want to take the chance?
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Oh poo! I've got three coats of Humbrol enamel on all dried and rubbed down, and last night I started on the camouflage-style top coats for which I wanted to use six colours. I now find that three of the new tins are dud, which on top of other paint problems has finally finished me with Humbrol >>:-(
I really don't fancy rubbing right back to the bare wood and I don't fancy paying over a tenner for isolator primer when I can't really use rattle cans, so I'll reluctantly go for a revised colour scheme using Humbrol tins which I know are OK.
Once this build's finished, I ditch my remaining tins of Humbrol and go 100% Tamiya acrylic for sure ...
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Do you HAVE to use spray cans ? Expensive.
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There shouldn't be a problem using water/alchohol based acrylics over enamel provided the enamel is suitable "cured" (left long enough to dry!) The problem could arise if your using aerosols. I personally wouldn't use car paint over enamels but brushed on or air brushed hobby acrylics should be ok. A problem you might find is getting the coverage over the base colour.
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Do you HAVE to use spray cans ? Expensive.
Eh??????? I don't use spray cans :-)
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Simply JUST DONT DO IT as it will end in TEARS
Dave
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Eh??????? I don't use spray cans :-)
My mistake , sorry. :embarrassed: