Thread: gel coat
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Old October 24th 19, 02:22 PM posted to rec.aviation.soaring
James Thomson[_2_]
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Posts: 49
Default gel coat

At 03:05 24 October 2019, 2G wrote:
On Wednesday, October 23, 2019 at 1:45:51 PM UTC-7, Charlie Quebec

wrote:
I know of several cases where the top layers of glass had to be

replaced
due to crack propagation. This was only confirmed by dry penetration
testing.

What, exactly, is "dry penetration testing?"

I think that it is Aussie code for "dye penetrant"