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paint running off

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  • Member since
    May, 2017
  • From: ohio I want to leave
paint running off
Posted by armor 2.0 on Friday, September 29, 2017 5:50 PM

I'm building a amt r685st mack and I'm brush painting the rear rims paint run off as fast as I put it on lm using tamiya acrylic black paint I've washed the rims in dawn dishing soap several times and even used 90 percent alcohol still same problem tried paint straight no thinner still same problem.any help would be appreciated.

Thank you

  • Member since
    September, 2012
Posted by GMorrison on Friday, September 29, 2017 7:07 PM

Primer

  • Member since
    May, 2017
  • From: ohio I want to leave
Posted by armor 2.0 on Friday, September 29, 2017 7:28 PM

[quote user="GMorrison"]

Primer

 

Primer won't stay put either

  • Member since
    September, 2012
Posted by GMorrison on Friday, September 29, 2017 7:35 PM

Yikes! They are just plain styrene? I will say that I'm no fan of the Tamiya Flat Black, is it XF-1? Try Testors NATO Black.

  • Member since
    May, 2017
  • From: ohio I want to leave
Posted by armor 2.0 on Friday, September 29, 2017 7:51 PM

[quote user="GMorrison"]

Yikes! They are just plain styrene? I will say that I'm no fan of the Tamiya Flat Black, is it XF-1? Try Testors NATO Black.

 

It's plain stryene the paint is x-1 I've painted other parts of model with same bottle of paint had no problems with it

  • Member since
    January, 2017
Posted by ecotec83 on Friday, September 29, 2017 9:15 PM

Sounds like some kind of contamination is preventing the paint from sticking. Maybe try soaking the parts in a degreaser and scrubbing with a soft brush.  Maybe even use some fine sandpaper to rough the part up a bit if possible to do so, this may give the paint something to stick to.

  • Member since
    January, 2013
Posted by BlackSheepTwoOneFour on Saturday, September 30, 2017 9:15 AM

Did you wash the spruces before applying primer and paint? Sounds to me there's still some oily residues from the moldings.

  • Member since
    November, 2006
Posted by Bearcat57 on Saturday, September 30, 2017 11:32 AM

He said he washed several times with Dawn and 90% alcohol. That should've been enough to remove the oily residues.

  • Member since
    January, 2013
Posted by BlackSheepTwoOneFour on Saturday, September 30, 2017 12:40 PM

 

Bearcat57

He said he washed several times with Dawn and 90% alcohol. That should've been enough to remove the oily residues.

 

 

You're correct. I must've overlooked that part. Maybe you over thinned the primer and paint? Did you add the the thinner to the bottle of primer and/or paint bottle? If so, that's never a good idea.

Other than that, I have no idea except contamination coming from somewhere.  

Although, you did mention you cleaned it "several times" with Dawn and alcohol. Once would have been enough, not several times. I wouldn't be surprised there's still too much dish soap residue lingering on the parts.

  • Member since
    May, 2017
  • From: ohio I want to leave
Posted by armor 2.0 on Saturday, September 30, 2017 4:23 PM

Thank you all for the replies I finally took some sanding paper to them and the paint stuck.

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