Yellowing gelcoat - solution?

[RobF]

for a guy with all that fancy camera stuff you think a picture would have been included

[bullet20vee]

Try wetsanding and buffing a test spot to see if that helps. I just did a white bass boat for a neighbor that had the same issues. I started with 800 and went to 1500 on the first spot and it looked new. I went with 1000 on the first cut on the other spot and it worked the same. I wound up doing the whole top cap because the spots that were wetsanded looked better that the rest. I also used the Protec sealant/polish and it turned out great.

[Markus]

foam blocks, chopper gun, gelcoat

That makes it topcoat, doesn't it?

[RobF]

That makes it topcoat, doesn't it?

not sure what the question is.

The exterior the boat is out of the mold, it is smooth and shiny. He has some yellow spots here and there- my guess would be from repairs that were made.
The interior of the boat is rolled gelcoat over raw chopper gun. they lay foam blocks in place- chopper gun over that, and then roll gelcoat. its a raw rolled finish not a smooth finish that can be sanded or polished.

[Markus]

not sure what the question is.

If it is on top, it is topcoat. If it is applied to the mold, it it gelcoat.

What you describe sounds like topcoat.

[RobF]

If it is on top, it is topcoat. If it is applied to the mold, it it gelcoat.

What you describe sounds like topcoat.

I guess when you put it that way- yes.
It is still gelcoat, but it is raw rolled, not able to be sanded and polished.
I always considered "topcoat" to be more of a paint or a finished surface, not a raw finish.
I would not consider gelcoat rolled in a bilge to be topcoat either, but I guess it is "on top" of a surface

[flabum1017]

Stop missing when you pee overboard......