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#1
March 28th 16, 05:08 PM
posted to rec.aviation.soaring
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Gelcoat Sanding
I often hear that sanding is only a temporary solution, and after couple of years the gel coat will lift again and now you have a thiner gel coat layer and wider cracks. If so, why sanding unless you try to sell your glider?
Ramy 
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#2
March 28th 16, 05:20 PM
posted to rec.aviation.soaring
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Gelcoat Sanding
On Monday, March 28, 2016 at 12:08:22 PM UTC-4, Ramy wrote:
I often hear that sanding is only a temporary solution, and after couple of years the gel coat will lift again and now you have a thinner gel coat layer and wider cracks. If so, why sanding unless you try to sell your glider? Ramy So you can save up for a full refinish. A "flattening sanding" helps with the aerodynamics followed by a good wax/polish can extend the life of what you have. A full refinish is not cheap.
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#3
March 28th 16, 07:14 PM
posted to rec.aviation.soaring
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Gelcoat Sanding
On Monday, March 28, 2016 at 12:20:45 PM UTC-4, Charlie M. (UH & 002 o
exactomundo. On Monday, March 28, 2016 at 12:08:22 PM UTC-4, Ramy wrote: I often hear that sanding is only a temporary solution, and after couple of years the gel coat will lift again and now you have a thinner gel coat layer and wider cracks. If so, why sanding unless you try to sell your glider? Ramy So you can save up for a full refinish. A "flattening sanding" helps with the aerodynamics followed by a good wax/polish can extend the life of what you have. A full refinish is not cheap.
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#4
March 28th 16, 07:20 PM
posted to rec.aviation.soaring
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Gelcoat Sanding
Hi Ramy,
i recently read an article on you in gliding international. you are an inspiration, i can only imagines some of the beautiful scenery you must have seen! another possible reason to sand is if you can catch crazing in it's very earliest stages you can sand away the damaged gelcoat and literally remove the crazing completely. crazing most typically begins in the existing sanding scratches on the surface of the gelcoat. that's the reason they are often chordwise, because as mike opitz indicated above, the manufacturers used to sand chordwise. On Monday, March 28, 2016 at 12:08:22 PM UTC-4, Ramy wrote: I often hear that sanding is only a temporary solution, and after couple of years the gel coat will lift again and now you have a thiner gel coat layer and wider cracks. If so, why sanding unless you try to sell your glider? Ramy
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