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Home✈️Aircraft🚁HelicopterBlades and Night Flying › Prepping gel coat canopy for painting
08-20-2008 07:08 PM  12 years ago
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GScott

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Lewis Center, OH

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Prepping gel coat canopy for painting
I have a stock Synergy canopy I want to paint but there are several cracks in the gel coat. What is the best way to fill/seal the cracks so they don't become a problem after it's painted?
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08-21-2008 05:00 PM  12 years ago
Bill Ludwig

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Tucson, AZ

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Some painters just squirt some thin CA into the crack and paint over it. That usually works for a little while but, with moderate flexing, the crack will just open up again. The only way to fix it correctly is to squirt CA into the crack, then put a layer or two of 3/4 oz fiberglass cloth over the crack (on the outside of the canopy). Sand the area to be repaired first, to give it a 'tooth'. You can use CA to attach the cloth also.

Here's a link to the cloth: http://www3.towerhobbies.com/cgi-bi...?&I=LXL491&P=ML

- Bill
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08-21-2008 08:04 PM  12 years ago
Farrell

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Huntington Beach, CA

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I use flexible CA from BSI ... never had any repaired crack open up again. I also use the same glue to reinforce all edges of my canopy with fiberglass cloth (in anticipation of crash damage) since that region tends to crack first.

Insta-Flex+ (pink cap) http://www.bsiadhesives.com/Pages/hobby/ca.html

You can kind of see the fiberglass work in the top corner of the photo below. I use 1/2" wide fiberglass tape ... never had it come off. I have destroyed canopies to the point where the only parts holding it together is the tape and flexible CA ...

It's good glue...

-Farrell
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08-28-2008 02:57 AM  12 years ago
yoshgixxer

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york PA usa

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hey farell is that stretch mask on that canopy?dude..wheres my heli?????ama#902014
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08-28-2008 05:46 PM  12 years ago
Farrell

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Huntington Beach, CA

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Wow, I have had quite a few people ask me about the mask. I don't mean to hijack this thread, but for all who want to know, here is my response:

The masking material I use is "Artool Ultra Mask" and it is somewhat stretchable. I ran it through my vinyl cutter to get the wavy flag and jagged edges design. That canopy was the first one I used with Ultra Mask, and I like the masking material.

It's relatively low-cost, cuts well, sticks to transfer tape well, and sticks to your surface well. The only drawback is that it is just barely tinted. That makes it a pain to pick ... those checkers took me a while. I think in the future I will run the Ultra Mask through my cutter to get the design on it, they spray a "guide coat" on the mask so that I can see what pieces I have picked.

I bought a 24" x 5yd roll at Coast Airbrush.

http://www.iwata-medea.com/products/artool/mask.jsp
http://www.coastairbrush.com/products.asp?cat=23

Below is a link to my blog. There are more photos of that checkered canopy, and some other airbrush projects I have attempted.

http://www.rcheliguy.com

-Farrell
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08-28-2008 11:01 PM  12 years ago
yoshgixxer

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york PA usa

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yea thats what i thought it was..i used it a few times before but i dont remembering it being tinted..the stuff i got was clear and it was kind of a paint to use because it was hard to peal out the cuts, i love the idea using liquid mask...i have some left over from my r/c car days..never thought of using it on a heli! this will save some serious back taping time! thanks for the info dude..wheres my heli?????ama#902014
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