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#1
12-12-2005, 01:12 AM
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need advice: how to prevent paint from rubbing off
as the topic states... I've been working on an Enzo's suspention and the paint keeps rubbing off near the middle ( sorry no pics now... at work)where I handle it the most.
I've primered everything with Gunze 1200 grey primer.. and I work with Tamiya Enamels... I know that I can change the sequence that I work but I was wondering if there is any other alternitive? I've thought about clearing it but it just seems a waste of time since it'll prolly rub off too... btw: the FX-56 that has been rubbed off was left to dry for over a week.. and the primer under it hasn't budged a bit...  HELP!!!  TY b4 hand! Steve 
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#2
12-12-2005, 03:47 AM
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Re: need advice: how to prevent paint from rubbing off
Clear would help a lot, but it is to much work for nothing, just touch up after you complete assembly.
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#3
12-12-2005, 04:05 AM
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Re: need advice: how to prevent paint from rubbing off
Gunze 1200 Surfacer is a laquer, the enamels probably can't bite into it to bond. Maybe rough the primer surface up to give the enamel some tooth to grip, or use a softer primer. Or even try thinning the enamels with lacquer thinner, thay may bite into the primer just enough to make a stronger bond.
I tend not to use enamels over laquers for exactly that reason. If I want to use an enamel topcoat I start with enamel as a base. Did you try a search? I'm sure we've discussed this on the forum before.
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#4
12-12-2005, 04:49 AM
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Quick reply as I know what he is talking about.
Enamels are good for brush painting etc, but I've had enamels rub off even when used over plastic with no primer. They take weeks to cure, and even after weeks of curing heavy handling can leave finger prints etc. As enamels are soft oil based paints and cure slowly, they need to be carefully used. Using enamels over TS sprays is great for small areas where you will "NOT" need to touch them ever again, as if you mess up, even after a few hours you can just wash them off. But as rightfully mentioned they do not "bite" into the paint below. Acrylics are the same, but due to these types of paint curing faster they do not rub off as quickly, but you can still pick off acrylics over TS sprays. Ever painted window trims with an airbrush and masking tape and used Acrylic X18 and had it leak over TS spray. You can just use a toothpick to remove the unwanted paint. Even after hours of curing. Try that with Acrylic over Acrylic. Doesn't work the same as removing Acrylic over TS lacquer. Enamels are the same, but due to enamel being soft and taking months to cure hard I don't use them for parts that need heavy handling. I use them for small details, or areas if I need to remove the paint if I mess it up, but I always try and use them in areas where I "will not" have to handle the parts painted ever again. They just cure far too slowly. I've mentioned this time and time again. Rule of thumb I follow - If you want to handle the very next day, lacquer all the way If you want to airbrush and handle within the week, acrylic is all you need And if you want to brush and never touch, enamels are what you need. Sorry, corny rhymes... But you get the idea. Paint is a tool, use it correctly fantastic finishes can be archived. FAQ does tell you most of this.
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