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General Aircraft
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Removing the mold line on canopy's?
Sudzonic
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Scotland, United Kingdom
Joined: December 07, 2007
KitMaker: 2,096 posts
AeroScale: 28 posts
Posted: Saturday, May 01, 2010 - 12:59 AM UTC
Hay all,

I have a question? How do you remove the mold line form the centre of a clear canopy? And then get the clear part back to a smooth finish with out any marks on it??

Thanks,

Scott.

lampie
#029
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England - East Midlands, United Kingdom
Joined: December 23, 2005
KitMaker: 6,249 posts
AeroScale: 3,270 posts
Posted: Saturday, May 01, 2010 - 03:42 AM UTC
Hi Scott.
The best way I've found to get rid of a canopy seam is to sand it down with ever finer grade sanding sticks or equivalent. The last grade being a polishing stick.
The canopy will look dull but a quick wash and then a dip in Johnsons Klear will have it shining like new.
Hope this helps,
Nige
bison126
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Correze, France
Joined: June 10, 2004
KitMaker: 5,329 posts
AeroScale: 9 posts
Posted: Saturday, May 01, 2010 - 04:36 AM UTC
Cut the line with a sharp blade then polish the canopy with some toothpaste.
But you'll need to be patient
EdgarBrooks
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England - South East, United Kingdom
Joined: June 03, 2006
KitMaker: 397 posts
AeroScale: 384 posts
Posted: Saturday, May 01, 2010 - 05:54 PM UTC
Micromesh supply a sanding stick, with four grades on it; I've resurrected a chrome finish with one. In the U.K. Little Cars stock them. Remember that the system, with Micromesh, is to use each grade at right-angles to the previous, and I always prefer to use it wet.
Edgar
mother
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New York, United States
Joined: January 29, 2004
KitMaker: 3,836 posts
AeroScale: 1,036 posts
Posted: Saturday, May 01, 2010 - 06:51 PM UTC
What I did was I went to my local auto shop and bought an assortment pack of wet/dry sanding paper (1000 - 1500) and a polish. First thing you should do is either pack the inside the canopy with clay or wet paper towels…this help so that you have a firm grip on it AND that it doesn’t crack or you’ll be looking for a replacement.

Start by using a new blade and ONLY scrap the seam, the under water start using the sand paper working your way up. Once finished either dip or spray a coat or two of Future Floor Wax.

Happy Modeling,
Joe
drabslab
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European Union
Joined: September 28, 2004
KitMaker: 2,186 posts
AeroScale: 1,587 posts
Posted: Monday, May 03, 2010 - 10:07 PM UTC
I solved such problem a couple of times very succesfully by:

- put masking tape left and rigth of the seam to protect most of the canopy from scratches
- scratch away the seam very carefully (scratch from front till aft) with a very sharp razorblade or X-acto knife
- remove the masking tape
- polish the canopy with tamiya polishing compound. This is the most difficult step; if you put too much pressure then the canopy might break

the whole process should not take more than 10 minutes

lots of success
Sudzonic
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Scotland, United Kingdom
Joined: December 07, 2007
KitMaker: 2,096 posts
AeroScale: 28 posts
Posted: Tuesday, May 04, 2010 - 12:22 AM UTC
Thanks guys, i tried the tooth paste method and it worked very well!

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