Last year I was working on my boat in the yard - next to me was another boat that this guy brought from a chalky dull white to an incredible shine. I asked him how he did it. Here's what he told me.
1) DONT use compound
2) POLISH the gel coat with maguires polish. Use a machine polisher and go over it as many times as you need to to get the shine. As he told me the polish returns oils to the gel coat. It's the only way to get it back up to a shine.
3) after you get the shine back - then wax it - just to protect the finish.
This year I followed his advice on my 20yr old sailboat and I was really blown away by the results. It works.
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