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Lew Gallagher
Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC
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 Posted: Mon Jun 09, 2008 5:54 pm Post subject: Doors/Plexi revisited ... again |
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Hey guys,
I thought I'd add this, nothing really new. I went ahead and sanded out a 1" shallow with the die grinder, overlapping the plexi and the fiberglass, so that when I laid a 1" strip of cloth and glassed it in, it would be flush.
Then came back over it with microbead/glass filler to make it really smooth and ready to prime.
By the way, I used the recommended Weld-on to glue in the windows, but it seems to me others are putting too much pressure with clamps and that may be causing the cracks when released. This is not a wood/glue bond where pressure is critical, it just needs to "float" in place with enough pressure to get any bubbles out.
The resulting joint is extremely tough with the layer of glass on the joint -- I don't anticipate any cracking or problem with the joint expanding the paint.
One more observation: Others have commented about the paint peeling off the windshield in rain at 200 MPH. I noticed that where I had ground out the plexi to receive the fiberglass, it bonds perfectly. But if it spilled over onto un-sanded plexi, the fiberglass would easily peel off back to where it was sanded. I imagine the primer and paint will do the same on unsanded plexi, so I have left a small margin so that I can sand the plexi up to where the paint line stops. The Weld-on actually melts into the un-sanded plexi.
I've added the "scabs" over the door hinges for the weather seal, but didn't take a picture of it after I also covered it with cloth/glass and skimmed it.
Later, - Lew
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_________________
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed ! |
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Lew Gallagher
Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC
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| Posted: Fri Jun 13, 2008 5:00 pm Post subject: Re: Doors/Plexi revisited ... again |
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In response to off line questions about the die grinder I use, a picture is easier and I'll just post it here in case others are interested.
I noticed Harbor Frt. has one for about $30, the quick release disk came from a body shop supply, extra disks came from Grainger.
This is an extremely useful tool for rough shaping small areas of fiberglass, aluminum, etc. But it is aggressive with high speed and small area, so practice a bit first.
Later, - Lew
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_________________
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crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed ! |
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