Failing Paint On Exterior Fiberglass Door - Help? - Painting - DIY Chatroom Home Improvement Forum

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Old 08-03-2009, 12:40 AM   #1
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Failing paint on exterior fiberglass door - Help?

I originally used gel stain and artist's oil to get the color I wanted on my doors. Clear coated with 3 coats of a marine grade polyurethane. Within one year of SE AK wind and rain (we get 13 feet a year here), plus hot sun on the door and snow in the winter, the finish was bubbling. Tried lightly sanding those spots and resealing entire door with same clear coat. Then the clear coat began to peel off in large pieces within 6 months or so. Tried sanding it down, wiping it with paint thinner, priming it with a exterior oil base primer. Painted with an exterior porch/floor latex paint. In a few months, the paint peeled off clear down to what was left of the stained door. I am exasperated as I have been so careful and I thought very thorough. Is the weather in this place just intolerable for exposed fiberglass doors? Hate to enclose it with a shed because it will block a gorgeous ocean view from the living room. Any suggestions? ( oh--all this work was done during the few dry days we have each year)


Last edited by Miss Harriett; 08-03-2009 at 12:42 AM. Reason: thought of more info to add
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Old 08-03-2009, 04:28 PM   #2
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There are special primers for fiberglass that will out-perform oil and latex primers. This is one that I know of but I am sure there are many more.


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Old 08-06-2009, 12:04 PM   #3
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you can use the stuff matthew suggested but if you sand the door lightly latex paint will stick to it and you wont need to do any clear coating
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