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Fixing scratched canopy

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  • Member since
    March, 2015
Fixing scratched canopy
Posted by JohnnyK on Saturday, January 06, 2018 5:02 PM

I  purchased a 1990 Monogram B-25 J from e-bay. The kit is in perfect condition except for the clear plastic parts. They were not in their own bag so they are scratched. How can I repair the scratched plastic?

  • Member since
    April, 2003
  • From: USA
Posted by keavdog on Saturday, January 06, 2018 5:15 PM

Depending on the severity e.g. very light you could try a dip in future floor polish.

 

If worse, fine grit sanding followed by novus polish, 3 steps.  Then a coat of future.  

 

Thanks,

John

  • Member since
    May, 2009
  • From: Poland
Posted by Pawel on Saturday, January 06, 2018 5:27 PM

Hello Johnny!

So to say you can repair them like the real thing - by polishing - and then later like the modellers do it - by future dipping. Polishing canopies is best done with a multi-grade nail polishing file that you can buy at most stores where they sell even the basic nail supplies. If you buy one that has a core made of soft foam, you can cut it to smaller pieces to get into tight spots if you must. You can skip the roughest "phase" - on some files they are just too rough. The smoothest pad is around 5000 grade, so you can polish the "glass" pretty well. After that you might want to put the part in a glass of Future-like product, take it out and let dry for about 24 hours under glass, to make sure no dust will sit on it while it dries. This way the transparent part gets extra shiny and extra clear, and additionally it's protected against fogging should you want to use super-glue around it.

Hope it helps, have a nice day

Paweł

All comments and critique welcomed. Thanks for your honest opinions!

www.vietnam.net.pl

  • Member since
    March, 2015
Posted by JohnnyK on Sunday, January 07, 2018 9:52 AM

Pawel

Hello Johnny!

So to say you can repair them like the real thing - by polishing - and then later like the modellers do it - by future dipping. Polishing canopies is best done with a multi-grade nail polishing file that you can buy at most stores where they sell even the basic nail supplies. If you buy one that has a core made of soft foam, you can cut it to smaller pieces to get into tight spots if you must. You can skip the roughest "phase" - on some files they are just too rough. The smoothest pad is around 5000 grade, so you can polish the "glass" pretty well. After that you might want to put the part in a glass of Future-like product, take it out and let dry for about 24 hours under glass, to make sure no dust will sit on it while it dries. This way the transparent part gets extra shiny and extra clear, and additionally it's protected against fogging should you want to use super-glue around it.

Hope it helps, have a nice day

Paweł

 

Can I paint the plastic after it is dipped in Future?

  • Member since
    May, 2009
  • From: Poland
Posted by Pawel on Sunday, January 07, 2018 1:20 PM

Definitely.

All comments and critique welcomed. Thanks for your honest opinions!

www.vietnam.net.pl

  • Member since
    March, 2015
Posted by JohnnyK on Sunday, January 07, 2018 3:08 PM

Pawel

Definitely.

 

On closer inspection, I would say that the clear plastic is scuffed, not scratched. Maybe Future is all that is needed.

  • Member since
    November, 2008
  • From: Central Florida
Posted by plasticjunkie on Sunday, January 07, 2018 9:36 PM

Get either Novus#2 or any automotive haze remover and polish out the plastic. Not only will you get rid of the scuff, but you will improve the clarity. I like this method over dipping in Future.

 GIFMaker.org_jy_Ayj_O

 

 

Too many models to build, not enough time in a lifetime!!

  • Member since
    June, 2014
  • From: New Braunfels , Texas
Posted by Tanker - Builder on Monday, January 08, 2018 7:46 AM

Hi;

 I have to go with Plastic Junkie . Polishing with the Novus system is the answer . It has worked for me for over forty years .

 If it will remove scratches from Plexi it will work wonders on Styrene ! Slow and thorough and then wash with Dawn dish-soap , dry ( air ) and paint to your heart's content .

  • Member since
    January, 2014
Posted by Silver on Monday, January 08, 2018 3:47 PM

On real B-25 bombers of ww2 that had scratches on their clear glass.If it got worse, then the mains crew would replace a section at a time.at model shows I often see polished clear canopies With heavily weathered fuselage .Canopies 99.9% are distorted.I flew F-100’s in Vietnam Nam.My canopy was moderately scratched up after 70 missions.So was the fuselage.

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