Star leg not filled

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HoustonGuy
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Star leg not filled

Post by HoustonGuy » September 9th, 2019, 3:52 pm

:cry: I was working on a star with 7 legs that were about 1.5 each in length. It was in HOUSTON 95 degrees outside with no rain and done at 4 pm.
Cleaned out pit with tool.
Did not drill.
Used b150 delta bridge.
3 pressure vacuum cycles.
I covered the repair with foil and a towel so sunlight would not get to it.
All filled but one leg on the bottom and it only filled about a quarter of an inch, so about and inch was left infilled.
I applied pressure from inside the windshield to the crack. I used my lighter, but not really familiar with if this works or not.
I know I applied too much pressure as resin leaked out when I applied pressure, and after the repair was done, I noticed that I got some flowering on 2 of the fixed legs.
The pit dried cloudy after applying pit resin scrapping with new blade and polishing. I don’t think I noticed that the polish even made a difference. Any ideas?
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screenman
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Re: Star leg not filled

Post by screenman » September 9th, 2019, 10:03 pm

That needed flexing from outside, not inside, heat is an enemy as it causes the glass to expand making to leg close up and not allowing resin to flow. Did you polish until the polish had dried as this is when the shine appears.

Never cure until the repair is full is something I teach over here.

HoustonGuy
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Re: Star leg not filled

Post by HoustonGuy » September 10th, 2019, 4:23 am

Thanks screenman. When you say polish until it shines does that mean it will be clear or just not dull? So flexing from the outside is the way to open the leg? Also, when doing repairs outside and covering the repair process with a towel how much danger is there that the sun will cure the repair with slight exposure when lifting the towel to do the pressure vacuum cycles?

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